alfa.com Website Information

Daily Unique Visits: 5,379

Daily Page Views: 21,516

Income Per Day: $60

Estimated Value: $32,400

alfa.com is registered under .COM top-level domain. Please check other sites in .COM zone.

No name server records were found.

and is probably hosted by 1999FISHERSYS - Fisher Scientific, US. See the full list of other websites hosted by 1999FISHERSYS - Fisher Scientific, US.

The highest website alfa.com position in Alexa rank database was 165846 and the lowest rank position was 236437. Current position of alfa.com in Alexa rank database is 233302.

Desktop speed score of alfa.com (41/100) is better than the results of 15.65% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of alfa.com (93/100) is better than the results of 34.93% of other sites and means that the page is mobile-friendly.

Mobile speed score of alfa.com (30/100) is better than the results of 9.88% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

alfa.com Alexa Rank

The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.

alfa.com whois

WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.

Domain Name: ALFA.COM
Registry Domain ID: 1617403_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.markmonitor.com
Registrar URL: http://www.markmonitor.com
Updated Date: 2020-06-23T09:03:09Z
Creation Date: 1995-07-26T04:00:00Z
Registry Expiry Date: 2022-07-25T04:00:00Z
Registrar: MarkMonitor Inc.
Registrar IANA ID: 292
Registrar Abuse Contact Email: abusecomplaints@markmonitor.com
Registrar Abuse Contact Phone: +1.2083895740
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Name Server: PDNS1.ULTRADNS.NET
Name Server: PDNS2.ULTRADNS.NET
Name Server: PDNS3.ULTRADNS.ORG
Name Server: PDNS4.ULTRADNS.ORG
Name Server: PDNS5.ULTRADNS.INFO
Name Server: PDNS6.ULTRADNS.CO.UK
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2021-05-04T18:27:56Z

alfa.com server information

Servers Location

alfa.com desktop page speed rank

Last tested: 2017-05-21

Desktop Speed Bad

41/100

alfa.com Desktop Speed Test Quick Summary

priority - 64Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 620.1KiB (76% reduction).

Compressing https://www.alfa.com/media/library/b5a813e6f1ef4895b5baba33421b6a14.jpg could save 574.3KiB (77% reduction).
Compressing and resizing https://www.alfa.com/media/CACHE/images/ca737737d8…3d140e51cfe30496ec.jpg could save 30.6KiB (91% reduction).
Compressing and resizing https://www.alfa.com/static/images/alfa_logo.gif could save 6KiB (89% reduction).
Compressing https://www.alfa.com/static/images/atom.png could save 2.3KiB (30% reduction).
Compressing https://www.alfa.com/static/images/Catalyst.png could save 2KiB (33% reduction).
Compressing https://www.alfa.com/static/images/flask.png could save 2KiB (35% reduction).
Compressing https://www.alfa.com/static/images/dna.png could save 1.5KiB (33% reduction).
Compressing https://www.alfa.com/static/images/beaker.png could save 1.4KiB (48% reduction).

priority - 38Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 374.1KiB (82% reduction).

Compressing https://www.alfa.com/en/ could save 133.4KiB (88% reduction).
Compressing https://www.alfa.com/static/css/aa-theme.css could save 122.5KiB (85% reduction).
Compressing https://www.alfa.com/static/js/bootstrap.min.js could save 24.8KiB (73% reduction).
Compressing https://www.alfa.com/static/js/jquery.feedback.js could save 21.5KiB (79% reduction).
Compressing https://www.alfa.com/static/css/aa-corp.css?20170416 could save 14.8KiB (76% reduction).
Compressing https://www.alfa.com/static/js/holder.min.js could save 14.8KiB (63% reduction).
Compressing https://www.alfa.com/static/css/jquery.feedback.css could save 9.9KiB (84% reduction).
Compressing https://www.alfa.com/static/fonts/Roboto/css/fonts.css could save 9.3KiB (89% reduction).
Compressing https://www.alfa.com/static/js/ajax/cart_ajax.js could save 3.1KiB (65% reduction).
Compressing https://www.alfa.com/static/js/aa-web.js could save 2.8KiB (68% reduction).
Compressing https://www.alfa.com/static/js/ajax/availability_ajax.js?20170303 could save 2.6KiB (61% reduction).
Compressing https://www.alfa.com/static/js/jquery.spinner.min.js could save 2.4KiB (64% reduction).
Compressing https://www.alfa.com/static/css/feedback.css could save 2.4KiB (71% reduction).
Compressing https://www.alfa.com/static/js/ajax/favorites_ajax.js could save 2.1KiB (69% reduction).
Compressing https://www.alfa.com/static/hijack/hijack-styles.css could save 1.9KiB (72% reduction).
Compressing https://www.alfa.com/static/js/common.js?20160601 could save 1.7KiB (57% reduction).
Compressing https://www.alfa.com/static/js/jquery.typewatch.js could save 1.5KiB (56% reduction).
Compressing https://www.alfa.com/static/js/ajax/pricing_ajax.js could save 1KiB (56% reduction).
Compressing https://www.alfa.com/static/css/common.css could save 671B (48% reduction).
Compressing https://www.alfa.com/static/css/bootstrap-spinner.css could save 628B (70% reduction).

priority - 17Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://assets.adobedtm.com/0abdb8608423591aca749a…af8e5d432df893f0709.js (expiration not specified)
https://assets.adobedtm.com/0abdb8608423591aca749a…8498eceb03e48cb041c.js (expiration not specified)
https://assets.adobedtm.com/0abdb8608423591aca749a…fea64746d1bdf01063e.js (expiration not specified)
https://www.alfa.com/media/CACHE/images/8e67525c8b…9eb7aeb6578b0625c9.jpg (expiration not specified)
https://www.alfa.com/media/CACHE/images/ca737737d8…3d140e51cfe30496ec.jpg (expiration not specified)
https://www.alfa.com/media/library/b5a813e6f1ef4895b5baba33421b6a14.jpg (expiration not specified)
https://www.alfa.com/media/library/b9b5bfc9e3ec422abf786bfd32aa070d.gif (expiration not specified)
https://www.alfa.com/static/cookielaw/css/cookielaw.css (expiration not specified)
https://www.alfa.com/static/cookielaw/js/cookielaw.js (expiration not specified)
https://www.alfa.com/static/css/aa-theme.css (expiration not specified)
https://www.alfa.com/static/css/bootstrap-spinner.css (expiration not specified)
https://www.alfa.com/static/css/carousel.css (expiration not specified)
https://www.alfa.com/static/css/common.css (expiration not specified)
https://www.alfa.com/static/css/feedback.css (expiration not specified)
https://www.alfa.com/static/css/jquery.feedback.css (expiration not specified)
https://www.alfa.com/static/fonts/Roboto/css/fonts.css (expiration not specified)
https://www.alfa.com/static/hijack/hijack-styles.css (expiration not specified)
https://www.alfa.com/static/images/Catalyst.png (expiration not specified)
https://www.alfa.com/static/images/alfa_logo.gif (expiration not specified)
https://www.alfa.com/static/images/atom.png (expiration not specified)
https://www.alfa.com/static/images/beaker.png (expiration not specified)
https://www.alfa.com/static/images/dna.png (expiration not specified)
https://www.alfa.com/static/images/flask.png (expiration not specified)
https://www.alfa.com/static/js/aa-web.js (expiration not specified)
https://www.alfa.com/static/js/ajax/cart_ajax.js (expiration not specified)
https://www.alfa.com/static/js/ajax/favorites_ajax.js (expiration not specified)
https://www.alfa.com/static/js/ajax/pricing_ajax.js (expiration not specified)
https://www.alfa.com/static/js/bootstrap.min.js (expiration not specified)
https://www.alfa.com/static/js/feedback.js (expiration not specified)
https://www.alfa.com/static/js/holder.min.js (expiration not specified)
https://www.alfa.com/static/js/jquery.feedback.js (expiration not specified)
https://www.alfa.com/static/js/jquery.spinner.min.js (expiration not specified)
https://www.alfa.com/static/js/jquery.typewatch.js (expiration not specified)
https://ssl.google-analytics.com/ga.js (2 hours)

priority - 12Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 16 blocking script resources and 11 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://assets.adobedtm.com/0abdb8608423591aca749a…8498eceb03e48cb041c.js
https://code.jquery.com/jquery-1.11.2.min.js
https://code.jquery.com/ui/1.11.3/jquery-ui.min.js
https://www.alfa.com/static/js/bootstrap.min.js
https://www.alfa.com/static/js/holder.min.js
https://www.alfa.com/static/js/aa-web.js
https://www.alfa.com/static/js/common.js?20160601
https://www.alfa.com/static/js/jquery.typewatch.js
https://www.alfa.com/static/js/jquery.feedback.js
https://www.alfa.com/static/js/feedback.js
https://www.alfa.com/static/js/jquery.spinner.min.js
https://www.alfa.com/static/cookielaw/js/cookielaw.js
https://www.alfa.com/static/js/ajax/pricing_ajax.js
https://www.alfa.com/static/js/ajax/availability_ajax.js?20170303
https://www.alfa.com/static/js/ajax/cart_ajax.js
https://www.alfa.com/static/js/ajax/favorites_ajax.js

Optimize CSS Delivery of the following:

https://www.alfa.com/static/css/aa-theme.css
https://www.alfa.com/static/fonts/Roboto/css/fonts.css
https://maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css
https://www.alfa.com/static/css/aa-corp.css?20170416
https://www.alfa.com/static/css/jquery.feedback.css
https://www.alfa.com/static/css/common.css
https://www.alfa.com/static/css/feedback.css
https://www.alfa.com/static/css/bootstrap-spinner.css
https://www.alfa.com/static/hijack/hijack-styles.css
https://www.alfa.com/static/cookielaw/css/cookielaw.css
https://www.alfa.com/static/css/carousel.css

priority - 10Avoid landing page redirects

Your page has 3 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

http://alfa.com/
http://www.alfa.com/
https://www.alfa.com/
https://www.alfa.com/en/

priority - 7Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 68.5KiB (46% reduction).

Minifying https://www.alfa.com/en/ could save 68.5KiB (46% reduction).

priority - 4Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

151.1KiB of the HTML response was required to render the above-the-fold content. This requires 4 network round-trips. However, if the HTML response were compressed, then the HTML required to render the above-the-fold content could be delivered in just 2 network round-trips. Enable compression for the HTML response in order to prioritize the visible content for this page.

Only about 12% of the final above-the-fold content could be rendered with the HTML delivered within 2 round-trips.

priority - 3Reduce server response time

priority - 3Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 26.9KiB (16% reduction).

Minifying https://www.alfa.com/static/css/aa-theme.css could save 19.8KiB (14% reduction).
Minifying https://www.alfa.com/static/css/aa-corp.css?20170416 could save 4.4KiB (23% reduction).
Minifying https://www.alfa.com/static/fonts/Roboto/css/fonts.css could save 1.4KiB (14% reduction).
Minifying https://www.alfa.com/static/css/feedback.css could save 708B (21% reduction).
Minifying https://www.alfa.com/static/css/common.css could save 627B (45% reduction).

priority - 3Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 23.9KiB (47% reduction).

Minifying https://www.alfa.com/static/js/jquery.feedback.js could save 10.6KiB (39% reduction).
Minifying https://www.alfa.com/static/js/ajax/cart_ajax.js could save 3.5KiB (73% reduction).
Minifying https://www.alfa.com/static/js/ajax/availability_ajax.js?20170303 could save 2.9KiB (69% reduction).
Minifying https://www.alfa.com/static/js/ajax/favorites_ajax.js could save 2KiB (65% reduction).
Minifying https://www.alfa.com/static/js/common.js?20160601 could save 1.4KiB (49% reduction).
Minifying https://www.alfa.com/static/js/ajax/pricing_ajax.js could save 1.3KiB (71% reduction).
Minifying https://www.alfa.com/static/js/jquery.typewatch.js could save 1.2KiB (43% reduction).
Minifying https://www.alfa.com/static/js/aa-web.js could save 904B (22% reduction).

alfa.com Desktop Resource Breakdown

Total Resources	55
Number of Hosts	8
Static Resources	39
JavaScript Resources	21
CSS Resources	11

alfa.com mobile page speed rank

Last tested: 2017-05-19

Mobile Speed Bad

30/100

alfa.com Mobile Speed Test Quick Summary

priority - 60Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 589.5KiB (76% reduction).

Compressing https://www.alfa.com/media/library/b5a813e6f1ef4895b5baba33421b6a14.jpg could save 574.3KiB (77% reduction).
Compressing and resizing https://www.alfa.com/static/images/alfa_logo.gif could save 6KiB (89% reduction).
Compressing https://www.alfa.com/static/images/atom.png could save 2.3KiB (30% reduction).
Compressing https://www.alfa.com/static/images/Catalyst.png could save 2KiB (33% reduction).
Compressing https://www.alfa.com/static/images/flask.png could save 2KiB (35% reduction).
Compressing https://www.alfa.com/static/images/dna.png could save 1.5KiB (33% reduction).
Compressing https://www.alfa.com/static/images/beaker.png could save 1.4KiB (48% reduction).

priority - 48Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 16 blocking script resources and 11 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 38Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 374.1KiB (82% reduction).

priority - 35Avoid landing page redirects

Your page has 3 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

http://alfa.com/
http://www.alfa.com/
https://www.alfa.com/
https://www.alfa.com/en/

priority - 25Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

priority - 16Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

151.1KiB of the HTML response was required to render the above-the-fold content. This requires 4 network round-trips. However, if the HTML response were compressed, then the HTML required to render the above-the-fold content could be delivered in just 2 network round-trips. Enable compression for the HTML response in order to prioritize the visible content for this page.

Only about 25% of the final above-the-fold content could be rendered with the HTML delivered within 2 round-trips.

priority - 7Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 68.5KiB (46% reduction).

Minifying https://www.alfa.com/en/ could save 68.5KiB (46% reduction).

priority - 6Reduce server response time

priority - 3Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 26.9KiB (16% reduction).

priority - 3Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 23.9KiB (47% reduction).

alfa.com Mobile Resource Breakdown

Total Resources	55
Number of Hosts	8
Static Resources	39
JavaScript Resources	21
CSS Resources	11

alfa.com mobile page usability

Last tested: 2017-05-19

Mobile Usability Good

93/100

alfa.com Mobile Usability Test Quick Summary

priority - 6Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

The tap target <div class="feedback_button">Feedback</div> and 1 others are close to other tap targets.

The tap target <a href="/en/chemicals/">Chemicals</a> and 19 others are close to other tap targets.
The tap target <a href="https://www.fa….com/AlfaAesar"></a> and 3 others are close to other tap targets.
The tap target <button type="button" class="btn btn-default btn-sm"></button> and 2 others are close to other tap targets.

alfa.com HTML validation

Warnings

Consider avoiding viewport values that prevent users from resizing documents.

Line: 28 Column: 5 - 113
"...t=""> <meta name="viewport" content="width=device-width, minimum-scale=0.25, maximum-scale=1.0, initial-scale=1.0"> <..."

The “navigation” role is unnecessary for element “nav”.

Line: 147 Column: 5 - 57
"...der"> <nav class="navbar navbar-inverse" role="navigation"> ..."

The “button” role is unnecessary for element “button”.

Line: 1643 Column: 21 - 101
"... <button class="btn btn-primary" type="submit" id="search_products" role="button"> ..."

The “form” role is unnecessary for element “form”.

Line: 2206 Column: 11 - 138
"... <form method="post" enctype="multipart/form-data" action="/en/set-lang-region/" class="" id="entry_form" role="form" novalidate><input..."

The “type” attribute is unnecessary for JavaScript resources.

Line: 2877 Column: 1 - 31
"...acking--> <script type="text/javascript"> var..." Line: 2891 Column: 1 - 31
"...Pardot--> <script type="text/javascript"> p..." Line: 2907 Column: 1 - 31
"...cking --> <script type="text/javascript">_satel..."

Errors

Bad value “” for attribute “id” on element “body”: An ID must not be the empty string.

Line: 106 Column: 3 - 23
".../head> <body id="" class=""> <..."

Bad value “analytical-labware” for attribute “rel” on element “a”: The string “analytical-labware” is not a registered keyword.

Line: 185 Column: 32 - 117
"... <a role="menuitem" class="nav-level1" rel="analytical-labware" tabindex="-1" href="#"><i cla..."

Bad value “catalysts” for attribute “rel” on element “a”: The string “catalysts” is not a registered keyword.

Line: 194 Column: 32 - 108
"... <a role="menuitem" class="nav-level1" rel="catalysts" tabindex="-1" href="#"><i cla..."

Bad value “chemicals” for attribute “rel” on element “a”: The string “chemicals” is not a registered keyword.

Line: 203 Column: 32 - 108
"... <a role="menuitem" class="nav-level1" rel="chemicals" tabindex="-1" href="#"><i cla..."

Bad value “life-science” for attribute “rel” on element “a”: The string “life-science” is not a registered keyword.

Line: 212 Column: 32 - 111
"... <a role="menuitem" class="nav-level1" rel="life-science" tabindex="-1" href="#"><i cla..."

Bad value “metals-materials” for attribute “rel” on element “a”: The string “metals-materials” is not a registered keyword.

Line: 221 Column: 32 - 115
"... <a role="menuitem" class="nav-level1" rel="metals-materials" tabindex="-1" href="#"><i cla..."

The element “button” must not appear as a descendant of the “a” element.

Line: 227 Column: 38 - 89
"...-search/"><button class="hidden-xs btn btn-primary btn-block"> Advan..." Line: 228 Column: 39 - 90
"...-search/"><button class="hidden-xs btn btn-primary btn-block"> Struc..." Line: 1683 Column: 35 - 57
"...ack_move"><button onMousClick="">Feedba..." Line: 2144 Column: 19 - 71
"... <button type="button" class="btn btn-default btn-sm"> ..." Line: 2149 Column: 19 - 71
"... <button type="button" class="btn btn-default btn-sm"> ..." Line: 2154 Column: 19 - 71
"... <button type="button" class="btn btn-default btn-sm"> ..." Line: 2159 Column: 19 - 71
"... <button type="button" class="btn btn-default btn-sm"> ..." Line: 2164 Column: 19 - 71
"... <button type="button" class="btn btn-default btn-sm"> ..."

Bad value “analytical” for attribute “rel” on element “a”: The string “analytical” is not a registered keyword.

Line: 245 Column: 29 - 87
"... <a role="menuitem" rel="analytical" tabindex="-1" href="#"><i cla..."

Bad value “labware” for attribute “rel” on element “a”: The string “labware” is not a registered keyword.

Line: 256 Column: 29 - 84
"... <a role="menuitem" rel="labware" tabindex="-1" href="#"><i cla..."

Bad value “fuel-cell-products” for attribute “rel” on element “a”: The string “fuel-cell-products” is not a registered keyword.

Line: 281 Column: 29 - 95
"... <a role="menuitem" rel="fuel-cell-products" tabindex="-1" href="#"><i cla..."

Bad value “precious-metals-catalysts” for attribute “rel” on element “a”: The string “precious-metals-catalysts” is not a registered keyword.

Line: 292 Column: 29 - 102
"... <a role="menuitem" rel="precious-metals-catalysts" tabindex="-1" href="#"><i cla..."

Bad value “inorganics” for attribute “rel” on element “a”: The string “inorganics” is not a registered keyword.

Line: 310 Column: 29 - 87
"... <a role="menuitem" rel="inorganics" tabindex="-1" href="#"><i cla..."

Bad value “organics” for attribute “rel” on element “a”: The string “organics” is not a registered keyword.

Line: 321 Column: 29 - 85
"... <a role="menuitem" rel="organics" tabindex="-1" href="#"><i cla..."

Bad value “organometallics” for attribute “rel” on element “a”: The string “organometallics” is not a registered keyword.

Line: 332 Column: 29 - 92
"... <a role="menuitem" rel="organometallics" tabindex="-1" href="#"><i cla..."

Bad value “solvents” for attribute “rel” on element “a”: The string “solvents” is not a registered keyword.

Line: 343 Column: 29 - 85
"... <a role="menuitem" rel="solvents" tabindex="-1" href="#"><i cla..."

Bad value “biomedical-technologies-bt-products” for attribute “rel” on element “a”: The string “biomedical-technologies-bt-products” is not a registered keyword.

Line: 361 Column: 29 - 112
"... <a role="menuitem" rel="biomedical-technologies-bt-products" tabindex="-1" href="#"><i cla..."

Bad value “cellular-molecular-biology” for attribute “rel” on element “a”: The string “cellular-molecular-biology” is not a registered keyword.

Line: 372 Column: 29 - 103
"... <a role="menuitem" rel="cellular-molecular-biology" tabindex="-1" href="#"><i cla..."

Bad value “genomics” for attribute “rel” on element “a”: The string “genomics” is not a registered keyword.

Line: 383 Column: 29 - 85
"... <a role="menuitem" rel="genomics" tabindex="-1" href="#"><i cla..."

Bad value “immunology” for attribute “rel” on element “a”: The string “immunology” is not a registered keyword.

Line: 394 Column: 29 - 87
"... <a role="menuitem" rel="immunology" tabindex="-1" href="#"><i cla..."

Bad value “labeling-and-detection” for attribute “rel” on element “a”: The string “labeling-and-detection” is not a registered keyword.

Line: 405 Column: 29 - 99
"... <a role="menuitem" rel="labeling-and-detection" tabindex="-1" href="#"><i cla..."

Bad value “proteomics” for attribute “rel” on element “a”: The string “proteomics” is not a registered keyword.

Line: 416 Column: 29 - 87
"... <a role="menuitem" rel="proteomics" tabindex="-1" href="#"><i cla..."

Bad value “thermo_scientific_biochemicals_1” for attribute “rel” on element “a”: The string “thermo_scientific_biochemicals_1” is not a registered keyword.

Line: 427 Column: 29 - 109
"... <a role="menuitem" rel="thermo_scientific_biochemicals_1" tabindex="-1" href="#"><i cla..."

Bad value “alloys” for attribute “rel” on element “a”: The string “alloys” is not a registered keyword.

Line: 445 Column: 29 - 83
"... <a role="menuitem" rel="alloys" tabindex="-1" href="#"><i cla..."

Bad value “carbon” for attribute “rel” on element “a”: The string “carbon” is not a registered keyword.

Line: 456 Column: 29 - 83
"... <a role="menuitem" rel="carbon" tabindex="-1" href="#"><i cla..."

Bad value “evaporation-materials” for attribute “rel” on element “a”: The string “evaporation-materials” is not a registered keyword.

Line: 474 Column: 29 - 98
"... <a role="menuitem" rel="evaporation-materials" tabindex="-1" href="#"><i cla..."

Bad value “single-crystals” for attribute “rel” on element “a”: The string “single-crystals” is not a registered keyword.

Line: 499 Column: 29 - 92
"... <a role="menuitem" rel="single-crystals" tabindex="-1" href="#"><i cla..."

Bad value “windows-spheres” for attribute “rel” on element “a”: The string “windows-spheres” is not a registered keyword.

Line: 510 Column: 29 - 92
"... <a role="menuitem" rel="windows-spheres" tabindex="-1" href="#"><i cla..."

Forbidden code point U+0099.

Line: 540 Column: - 101
"...lloys/">Nitinol Nickel T..."

Bad value “navmenu-17” for attribute “rel” on element “a”: The string “navmenu-17” is not a registered keyword.

Line: 1627 Column: 210 - 287
"...ol-lg-2" ><a role="menuitem" class="nav-level1" rel="navmenu-17" tabindex="-1" href="#"><i cla..."

Bad value “navmenu-74” for attribute “rel” on element “a”: The string “navmenu-74” is not a registered keyword.

Line: 1627 Column: 537 - 614
"...ol-lg-2" ><a role="menuitem" class="nav-level1" rel="navmenu-74" tabindex="-1" href="#"><i cla..."

Bad value “navmenu-91” for attribute “rel” on element “a”: The string “navmenu-91” is not a registered keyword.

Line: 1627 Column: 882 - 959
"...ol-lg-2" ><a role="menuitem" class="nav-level1" rel="navmenu-91" tabindex="-1" href="#"><i cla..."

Bad value “navmenu-19” for attribute “rel” on element “a”: The string “navmenu-19” is not a registered keyword.

Line: 1627 Column: 1201 - 1278
"...ol-lg-2" ><a role="menuitem" class="nav-level1" rel="navmenu-19" tabindex="-1" href="#"><i cla..."

Bad value “navmenu-20” for attribute “rel” on element “a”: The string “navmenu-20” is not a registered keyword.

Line: 1627 Column: 1511 - 1588
"...ol-lg-2" ><a role="menuitem" class="nav-level1" rel="navmenu-20" tabindex="-1" href="#"><i cla..."

Bad value “navmenu-67” for attribute “rel” on element “a”: The string “navmenu-67” is not a registered keyword.

Line: 1627 Column: 1827 - 1904
"...ol-lg-2" ><a role="menuitem" class="nav-level1" rel="navmenu-67" tabindex="-1" href="#"><i cla..."

Bad value “navmenu-104” for attribute “rel” on element “a”: The string “navmenu-104” is not a registered keyword.

Line: 1627 Column: 2169 - 2247
"...ol-lg-2" ><a role="menuitem" class="nav-level1" rel="navmenu-104" tabindex="-1" href="#"> ..."

Bad value “navmenu-107” for attribute “rel” on element “a”: The string “navmenu-107” is not a registered keyword.

Line: 1627 Column: 2511 - 2589
"...ol-lg-2" ><a role="menuitem" class="nav-level1" rel="navmenu-107" tabindex="-1" href="#"> ..."

Bad value “navmenu-109” for attribute “rel” on element “a”: The string “navmenu-109” is not a registered keyword.

Line: 1627 Column: 2819 - 2897
"...ol-lg-2" ><a role="menuitem" class="nav-level1" rel="navmenu-109" tabindex="-1" href="#"> ..."

Attribute “url” not allowed on element “div” at this point.

Line: 1654 Column: 6 - 89
"...ts"> <div id="header-cartlink" url="/en/cart/" class="input-group" title="Shopping Cart"> <..."

Attribute “onmousclick” not allowed on element “button” at this point.

Line: 1683 Column: 35 - 57
"...ack_move"><button onMousClick="">Feedba..."

Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.

Line: 1768 Column: 197 - 295
"...homepage"><img class="img-responsive" src="/media/library/6ff786ece7bf41b0b6dac46f68eaf67f.jpg" width="100%"></a></..." Line: 1777 Column: 141 - 239
"...homepage"><img class="img-responsive" src="/media/library/5c9cb1b3ecbc401f88fdae4e6b76d346.jpg" width="100%"></a></..." Line: 1786 Column: 147 - 245
"...homepage"><img class="img-responsive" src="/media/library/bc2e1628fa0c410793181c7319e64fae.jpg" width="100%"></a></..." Line: 1820 Column: 197 - 295
"...homepage"><img class="img-responsive" src="/media/library/6ff786ece7bf41b0b6dac46f68eaf67f.jpg" width="100%"></a></..." Line: 1829 Column: 141 - 239
"...homepage"><img class="img-responsive" src="/media/library/5c9cb1b3ecbc401f88fdae4e6b76d346.jpg" width="100%"></a></..." Line: 1838 Column: 147 - 245
"...homepage"><img class="img-responsive" src="/media/library/bc2e1628fa0c410793181c7319e64fae.jpg" width="100%"></a></..." Line: 1867 Column: 147 - 245
"...homepage"><img class="img-responsive" src="/media/library/bc2e1628fa0c410793181c7319e64fae.jpg" width="100%"></a></..." Line: 1889 Column: 197 - 295
"...homepage"><img class="img-responsive" src="/media/library/6ff786ece7bf41b0b6dac46f68eaf67f.jpg" width="100%"></a></..." Line: 1892 Column: 141 - 239
"...homepage"><img class="img-responsive" src="/media/library/5c9cb1b3ecbc401f88fdae4e6b76d346.jpg" width="100%"></a></..." Line: 1923 Column: 197 - 295
"...homepage"><img class="img-responsive" src="/media/library/6ff786ece7bf41b0b6dac46f68eaf67f.jpg" width="100%"></a></..." Line: 1932 Column: 141 - 239
"...homepage"><img class="img-responsive" src="/media/library/5c9cb1b3ecbc401f88fdae4e6b76d346.jpg" width="100%"></a></..." Line: 1941 Column: 147 - 245
"...homepage"><img class="img-responsive" src="/media/library/bc2e1628fa0c410793181c7319e64fae.jpg" width="100%"></a></..." Line: 1977 Column: 160 - 258
"...homepage"><img class="img-responsive" src="/media/library/95b926156cb14a64b69a869dead226cc.jpg" width="100%"></a></..." Line: 1986 Column: 151 - 249
"...homepage"><img class="img-responsive" src="/media/library/5ce9db9679c243ff86cc51fe7939a23b.png" width="100%"></a></..." Line: 1995 Column: 163 - 262
"...homepage"><img class="img-responsive" src="/media/library/4086dd7d612246b7a97988a0f8698f6a.png " width="100%"></a></..." Line: 2004 Column: 181 - 280
"...homepage"><img class="img-responsive" src="/media/library/3939a33f705047fd97a0f0ad937d9bba.png " width="100%"></a></..." Line: 2018 Column: 160 - 258
"...homepage"><img class="img-responsive" src="/media/library/95b926156cb14a64b69a869dead226cc.jpg" width="100%"></a></..." Line: 2027 Column: 151 - 249
"...homepage"><img class="img-responsive" src="/media/library/5ce9db9679c243ff86cc51fe7939a23b.png" width="100%"></a></..." Line: 2039 Column: 163 - 262
"...homepage"><img class="img-responsive" src="/media/library/4086dd7d612246b7a97988a0f8698f6a.png " width="100%"></a></..." Line: 2048 Column: 181 - 280
"...homepage"><img class="img-responsive" src="/media/library/3939a33f705047fd97a0f0ad937d9bba.png " width="100%"></a></..."

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

No “p” element in scope but a “p” end tag seen.

Line: 1980 Column: 1 - 4
"...ence.</p> </p> </..." Line: 1989 Column: 1 - 4
"...unds.</p> </p> </..." Line: 1998 Column: 1 - 4
"...ules.</p> </p> </..." Line: 2007 Column: 1 - 4
"...esis.</p> </p> </..." Line: 2021 Column: 1 - 4
"...ence.</p> </p> </..." Line: 2030 Column: 1 - 4
"...unds.</p> </p> </..." Line: 2042 Column: 1 - 4
"...ules.</p> </p> </..." Line: 2051 Column: 1 - 4
"...esis.</p> </p> </..."

Element “br” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)

Line: 2109 Column: 127 - 131
"...tates</li><br/></ul><..."

No space between attributes.

Line: 2212 Column: - 62
"...anguage-select"class="form-con..."

Bad value “” for attribute “aria-labelledby” on element “div”: An IDREFS value must contain at least one non-whitespace character.

Line: 2745 Column: 5 - 123
"...l --> <div class="modal fade" id="punchout-greeting-popup" tabindex="-1" role="dialog" aria-labelledby="" aria-hidden="true"> ..."

End tag for “body” seen, but there were unclosed elements.

Line: 2913 Column: 3 - 9
"...--> </body> </htm..."

Unclosed element “div”.

Line: 122 Column: 5 - 19
"...v> <div id="wrap"> ..."

The value of the “for” attribute of the “label” element must be the ID of a non-hidden form control.

Line: 1735 Column: 14 - 68
"... <label class="feedback_message" for="feedback_message"> ..."

The “aria-labelledby” attribute must point to an element in the same document.

Line: 2199 Column: 5 - 134
"...l --> <div class="modal fade" id="language-region-popup" tabindex="-1" role="dialog" aria-labelledby="myModalLabel2" aria-hidden="true"> ..."

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alfa.com Ping

Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.

alfa.com TRACEROUTE

Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.

ALFA.COM Website Information

alfa.com Website Information

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alfa.com Alexa Rank

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alfa.com server information

Servers Location

alfa.com desktop page speed rank

alfa.com Desktop Speed Test Quick Summary

priority - 64Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 620.1KiB (76% reduction).

priority - 38Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 374.1KiB (82% reduction).

priority - 17Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

priority - 12Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 16 blocking script resources and 11 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 10Avoid landing page redirects

Your page has 3 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

priority - 7Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 68.5KiB (46% reduction).

priority - 4Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

priority - 3Reduce server response time

priority - 3Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 26.9KiB (16% reduction).

priority - 3Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 23.9KiB (47% reduction).

alfa.com Desktop Resource Breakdown

alfa.com mobile page speed rank

alfa.com Mobile Speed Test Quick Summary

priority - 60Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 589.5KiB (76% reduction).

priority - 48Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 16 blocking script resources and 11 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 38Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 374.1KiB (82% reduction).

priority - 35Avoid landing page redirects

Your page has 3 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

priority - 25Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

priority - 16Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

priority - 7Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 68.5KiB (46% reduction).

priority - 6Reduce server response time

priority - 3Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 26.9KiB (16% reduction).

priority - 3Minify JavaScript

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Minify JavaScript for the following resources to reduce their size by 23.9KiB (47% reduction).

alfa.com Mobile Resource Breakdown

alfa.com mobile page usability

alfa.com Mobile Usability Test Quick Summary

priority - 6Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

alfa.com HTML validation

Warnings

Consider avoiding viewport values that prevent users from resizing documents.

The “navigation” role is unnecessary for element “nav”.

The “button” role is unnecessary for element “button”.

The “form” role is unnecessary for element “form”.