TESA.COM tesa – global manufacturer of tapes and self-adhesive solutions

tesa.com Website Information

Daily Unique Visits: 66,845

Daily Page Views: 401,070

Income Per Day: $802

Estimated Value: $577,440

This website is located in Germany and is using following IP address 188.94.26.118. See the complete list of popular websites hosted in Germany.

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

Website tesa.com is using the following name servers:

  • ns1.netnames.net
  • ns2.netnames.net
  • ns5.netnames.net
  • ns6.netnames.net

and is probably hosted by NMMN New Media Markets & Networks IT-Services GmbH. See the full list of other websites hosted by NMMN New Media Markets & Networks IT-Services GmbH.

The highest website tesa.com position in Alexa rank database was 21405 and the lowest rank position was 22183. Current position of tesa.com in Alexa rank database is 21456.

Desktop speed score of tesa.com (90/100) is better than the results of 88.96% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of tesa.com (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.

Mobile speed score of tesa.com (59/100) is better than the results of 52.41% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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tesa.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.


tesa.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: TESA.COM
Registry Domain ID: 426825_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.corporatedomains.com
Registrar URL: http://cscdbs.com
Updated Date: 2021-05-24T05:08:40Z
Creation Date: 1997-05-29T04:00:00Z
Registry Expiry Date: 2022-05-28T04:00:00Z
Registrar: CSC Corporate Domains, Inc.
Registrar IANA ID: 299
Registrar Abuse Contact Email: domainabuse@cscglobal.com
Registrar Abuse Contact Phone: 8887802723
Domain Status: serverDeleteProhibited https://icann.org/epp#serverDeleteProhibited
Domain Status: serverTransferProhibited https://icann.org/epp#serverTransferProhibited
Domain Status: serverUpdateProhibited https://icann.org/epp#serverUpdateProhibited
Name Server: NS1.NETNAMES.NET
Name Server: NS2.NETNAMES.NET
Name Server: NS5.NETNAMES.NET
Name Server: NS6.NETNAMES.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2021-06-02T23:09:53Z

tesa.com server information

Servers Location

tesa.com desktop page speed rank

Last tested: 2019-06-24


Desktop Speed Good
90/100

tesa.com Desktop Speed Test Quick Summary


priority - 6Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking script resources and 1 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://www.tesa.com/js/033ecfe.js

Optimize CSS Delivery of the following:

https://www.tesa.com/css/b0fd835.css

priority - 2Leverage 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://www.google.com/recaptcha/api.js?onload=rec…llback&render=explicit (5 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-K8ZBC2 (15 minutes)
https://www.gstatic.com/cv/js/sender/v1/cast_sender.js (50 minutes)
https://www.google-analytics.com/plugins/ua/linkid.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 1Minify 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 13.1KiB (60% reduction).

Minifying https://www.tesa.com/js/a6a572d.js could save 12.8KiB (62% reduction) after compression.
Minifying https://www.tesa.com/js/033ecfe.js could save 320B (29% reduction) after compression.

priority - 0Enable 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 364B (43% reduction).

Compressing https://www.youtube.com/iframe_api could save 364B (43% reduction).

tesa.com Desktop Resource Breakdown

Total Resources37
Number of Hosts10
Static Resources24
JavaScript Resources12
CSS Resources2

tesa.com mobile page speed rank

Last tested: 2017-05-17


Mobile Speed Bad
59/100

tesa.com Mobile Speed Test Quick Summary


priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 2 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

http://www.tesa.com/js/25bfd32.js
http://www.tesa.com/js/a6a572d.js

Optimize CSS Delivery of the following:

http://www.tesa.com/css/c6e8532.css
http://hello.myfonts.net/count/328106

priority - 18Optimize images

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

Optimize the following images to reduce their size by 178.6KiB (27% reduction).

Compressing http://www.tesa.com/files/images/201608/69/tesa-in…,46710_crop16x9_24.jpg could save 125.6KiB (27% reduction).
Compressing http://www.tesa.com/files/images/201702/35/tesa-pr…d,48303_crop16x9_9.jpg could save 32.9KiB (25% reduction).
Compressing http://www.tesa.com/files/images/201610/6/wikitapi…,139080_crop16x9_4.jpg could save 9.9KiB (37% reduction).
Compressing http://www.tesa.com/files/images/201610/4/tesafilm…g,48184_crop16x9_4.jpg could save 6.9KiB (36% reduction).
Compressing http://www.tesa.com/files/images/201610/5/about-te…y,47855_crop16x9_4.jpg could save 985B (20% reduction).
Compressing http://www.tesa.com/files/images/201608/5/about-te…n,48204_crop16x9_4.jpg could save 843B (22% reduction).
Compressing http://www.tesa.com/files/images/201608/5/about-te…r,48198_crop16x9_4.jpg could save 753B (23% reduction).
Compressing http://www.tesa.com/files/images/201608/5/about-te…,139119_crop16x9_4.jpg could save 752B (19% reduction).

priority - 8Prioritize 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.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 50% of the final above-the-fold content could be rendered with the full HTML response.

priority - 6Leverage 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://www.google.com/recaptcha/api.js?onload=rec…llback&render=explicit (5 minutes)
http://www.googletagmanager.com/gtm.js?id=GTM-K8ZBC2 (15 minutes)
https://www.gstatic.com/cv/js/sender/v1/cast_sender.js (50 minutes)
http://www.google-analytics.com/plugins/ua/linkid.js (60 minutes)
http://www.google-analytics.com/analytics.js (2 hours)
http://www.tesa.com/app/js/config.js (24 hours)
http://www.tesa.com/css/c6e8532.css (24 hours)
http://www.tesa.com/js/25bfd32.js (24 hours)
http://www.tesa.com/js/a6a572d.js (24 hours)

priority - 0Minify 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 1,013B (12% reduction).

Minifying http://www.tesa.com/ could save 1,013B (12% reduction) after compression.

tesa.com Mobile Resource Breakdown

Total Resources34
Number of Hosts10
Static Resources21
JavaScript Resources11
CSS Resources2

tesa.com mobile page usability

Last tested: 2017-05-17


Mobile Usability Good
99/100

tesa.com Mobile Usability Test Quick Summary


priority - 0Size 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 <a href="/about-tesa/le…privacy-policy" class="element">Privacy Policy</a> and 1 others are close to other tap targets.

tesa.com HTML validation

Errors

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

Line: 7 Column: 1 - 62
"..."UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <meta..."

Element “meta” is missing one or more of the following attributes: “charset”, “content”, “http-equiv”, “itemprop”, “name”, “property”.

Line: 20 Column: 1 - 37
"...sperson"> <meta data-generated="1535109560000"> <meta..."

Attribute “media” not allowed on element “source” at this point.

Line: 209 Column: 1 - 128
"...d="none"> <source type="video/mp4" src="https://video.tesa.com/desktop/tesa-in-90-seconds_20874_151000484.mp4" media="(min-width: 768px)"> <sour..." Line: 210 Column: 1 - 109
"... 768px)"> <source type="video/mp4" src="https://video.tesa.com/mobile/tesa-in-90-seconds_20874_151000484.mp4" media=""> </vid..."

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

Line: 212 Column: 1 - 7
"... </video> <style> @medi..."

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

Line: 286 Column: 29 - 922
"...ts/image"><img src="/en/files/images/201608/18/industry-tape-solutions,48774_crop16x9_4.jpg" srcset="/en/files/images/201608/18/industry-tape-solutions,48774_crop16x9_1.jpg 85w, /en/files/images/201608/18/industry-tape-solutions,48774_crop16x9_2.jpg 190w, /en/files/images/201608/18/industry-tape-solutions,48774_crop16x9_3.jpg 295w, /en/files/images/201608/18/industry-tape-solutions,48774_crop16x9_4.jpg 400w, /en/files/images/201608/18/industry-tape-solutions,48774_crop16x9_6.jpg 610w, /en/files/images/201608/18/industry-tape-solutions,48774_crop16x9_9.jpg 925w, /en/files/images/201608/18/industry-tape-solutions,48774_crop16x9_12.jpg 1240w, /en/files/images/201608/18/industry-tape-solutions,48774_crop16x9_18.jpg 1870w" sizes="(min-width: 1200px) 386.67px, (min-width: 992px) calc(33vw - 40px), (min-width: 768px) calc(33vw - 26.67px), (min-width: 480px) calc(100vw - 40px), calc(100vw - 40px)" ></div>..." Line: 314 Column: 29 - 841
"...ts/image"><img src="/en/files/images/201608/41/tesa-powerbond,46789_crop16x9_4.jpg" srcset="/en/files/images/201608/41/tesa-powerbond,46789_crop16x9_1.jpg 85w, /en/files/images/201608/41/tesa-powerbond,46789_crop16x9_2.jpg 190w, /en/files/images/201608/41/tesa-powerbond,46789_crop16x9_3.jpg 295w, /en/files/images/201608/41/tesa-powerbond,46789_crop16x9_4.jpg 400w, /en/files/images/201608/41/tesa-powerbond,46789_crop16x9_6.jpg 610w, /en/files/images/201608/41/tesa-powerbond,46789_crop16x9_9.jpg 925w, /en/files/images/201608/41/tesa-powerbond,46789_crop16x9_12.jpg 1240w, /en/files/images/201608/41/tesa-powerbond,46789_crop16x9_18.jpg 1870w" sizes="(min-width: 1200px) 386.67px, (min-width: 992px) calc(33vw - 40px), (min-width: 768px) calc(33vw - 26.67px), (min-width: 480px) calc(100vw - 40px), calc(100vw - 40px)" ></div>..." Line: 342 Column: 29 - 1516
"...ts/image"><img src="/en/files/images/201702/123/tesa-professional-masking-and-plastering-building-protection-and-repairing-category-mood,48303_crop16x9_4.jpg" srcset="/en/files/images/201702/123/tesa-professional-masking-and-plastering-building-protection-and-repairing-category-mood,48303_crop16x9_1.jpg 85w, /en/files/images/201702/123/tesa-professional-masking-and-plastering-building-protection-and-repairing-category-mood,48303_crop16x9_2.jpg 190w, /en/files/images/201702/123/tesa-professional-masking-and-plastering-building-protection-and-repairing-category-mood,48303_crop16x9_3.jpg 295w, /en/files/images/201702/123/tesa-professional-masking-and-plastering-building-protection-and-repairing-category-mood,48303_crop16x9_4.jpg 400w, /en/files/images/201702/123/tesa-professional-masking-and-plastering-building-protection-and-repairing-category-mood,48303_crop16x9_6.jpg 610w, /en/files/images/201702/123/tesa-professional-masking-and-plastering-building-protection-and-repairing-category-mood,48303_crop16x9_9.jpg 925w, /en/files/images/201702/123/tesa-professional-masking-and-plastering-building-protection-and-repairing-category-mood,48303_crop16x9_12.jpg 1240w, /en/files/images/201702/123/tesa-professional-masking-and-plastering-building-protection-and-repairing-category-mood,48303_crop16x9_18.jpg 1870w" sizes="(min-width: 1200px) 386.67px, (min-width: 992px) calc(33vw - 40px), (min-width: 768px) calc(33vw - 26.67px), (min-width: 480px) calc(100vw - 40px), calc(100vw - 40px)" ></div>..." Line: 377 Column: 29 - 849
"...ts/image"><img src="/en/files/images/201608/6/about-tesa-career,48198_crop16x9_3.jpg" srcset="/en/files/images/201608/6/about-tesa-career,48198_crop16x9_1.jpg 85w, /en/files/images/201608/6/about-tesa-career,48198_crop16x9_2.jpg 190w, /en/files/images/201608/6/about-tesa-career,48198_crop16x9_3.jpg 295w, /en/files/images/201608/6/about-tesa-career,48198_crop16x9_4.jpg 400w, /en/files/images/201608/6/about-tesa-career,48198_crop16x9_6.jpg 610w, /en/files/images/201608/6/about-tesa-career,48198_crop16x9_9.jpg 880w, /en/files/images/201608/6/about-tesa-career,48198_crop16x9_12.jpg 880w, /en/files/images/201608/6/about-tesa-career,48198_crop16x9_18.jpg 880w" sizes="(min-width: 1200px) 285px, (min-width: 992px) calc(25vw - 35px), (min-width: 768px) calc(25vw - 25px), (min-width: 480px) calc(50vw - 30px), calc(50vw - 30px)" ></div>..." Line: 392 Column: 29 - 966
"...ts/image"><img src="/en/files/images/201608/6/about-tesa-company-information,48204_crop16x9_3.jpg" srcset="/en/files/images/201608/6/about-tesa-company-information,48204_crop16x9_1.jpg 85w, /en/files/images/201608/6/about-tesa-company-information,48204_crop16x9_2.jpg 190w, /en/files/images/201608/6/about-tesa-company-information,48204_crop16x9_3.jpg 295w, /en/files/images/201608/6/about-tesa-company-information,48204_crop16x9_4.jpg 400w, /en/files/images/201608/6/about-tesa-company-information,48204_crop16x9_6.jpg 610w, /en/files/images/201608/6/about-tesa-company-information,48204_crop16x9_9.jpg 880w, /en/files/images/201608/6/about-tesa-company-information,48204_crop16x9_12.jpg 880w, /en/files/images/201608/6/about-tesa-company-information,48204_crop16x9_18.jpg 880w" sizes="(min-width: 1200px) 285px, (min-width: 992px) calc(25vw - 35px), (min-width: 768px) calc(25vw - 25px), (min-width: 480px) calc(50vw - 30px), calc(50vw - 30px)" ></div>..." Line: 407 Column: 29 - 858
"...ts/image"><img src="/en/files/images/201610/6/about-tesa-history,47855_crop16x9_3.jpg" srcset="/en/files/images/201610/6/about-tesa-history,47855_crop16x9_1.jpg 85w, /en/files/images/201610/6/about-tesa-history,47855_crop16x9_2.jpg 190w, /en/files/images/201610/6/about-tesa-history,47855_crop16x9_3.jpg 295w, /en/files/images/201610/6/about-tesa-history,47855_crop16x9_4.jpg 400w, /en/files/images/201610/6/about-tesa-history,47855_crop16x9_6.jpg 610w, /en/files/images/201610/6/about-tesa-history,47855_crop16x9_9.jpg 880w, /en/files/images/201610/6/about-tesa-history,47855_crop16x9_12.jpg 880w, /en/files/images/201610/6/about-tesa-history,47855_crop16x9_18.jpg 880w" sizes="(min-width: 1200px) 285px, (min-width: 992px) calc(25vw - 35px), (min-width: 768px) calc(25vw - 25px), (min-width: 480px) calc(50vw - 30px), calc(50vw - 30px)" ></div>..." Line: 422 Column: 29 - 849
"...ts/image"><img src="/en/files/images/201608/7/about-tesa-press,139119_crop16x9_3.jpg" srcset="/en/files/images/201608/7/about-tesa-press,139119_crop16x9_1.jpg 85w, /en/files/images/201608/7/about-tesa-press,139119_crop16x9_2.jpg 190w, /en/files/images/201608/7/about-tesa-press,139119_crop16x9_3.jpg 295w, /en/files/images/201608/7/about-tesa-press,139119_crop16x9_4.jpg 400w, /en/files/images/201608/7/about-tesa-press,139119_crop16x9_6.jpg 610w, /en/files/images/201608/7/about-tesa-press,139119_crop16x9_9.jpg 880w, /en/files/images/201608/7/about-tesa-press,139119_crop16x9_12.jpg 880w, /en/files/images/201608/7/about-tesa-press,139119_crop16x9_18.jpg 880w" sizes="(min-width: 1200px) 285px, (min-width: 992px) calc(25vw - 35px), (min-width: 768px) calc(25vw - 25px), (min-width: 480px) calc(50vw - 30px), calc(50vw - 30px)" ></div>..." Line: 441 Column: 29 - 889
"...ts/image"><img src="/en/files/images/201610/8/wikitapia-key-visual,139080_crop16x9_6.jpg" srcset="/en/files/images/201610/8/wikitapia-key-visual,139080_crop16x9_1.jpg 85w, /en/files/images/201610/8/wikitapia-key-visual,139080_crop16x9_2.jpg 190w, /en/files/images/201610/8/wikitapia-key-visual,139080_crop16x9_3.jpg 295w, /en/files/images/201610/8/wikitapia-key-visual,139080_crop16x9_4.jpg 400w, /en/files/images/201610/8/wikitapia-key-visual,139080_crop16x9_6.jpg 610w, /en/files/images/201610/8/wikitapia-key-visual,139080_crop16x9_9.jpg 925w, /en/files/images/201610/8/wikitapia-key-visual,139080_crop16x9_12.jpg 1240w, /en/files/images/201610/8/wikitapia-key-visual,139080_crop16x9_18.jpg 1870w" sizes="(min-width: 1200px) 590px, (min-width: 992px) calc(50vw - 50px), (min-width: 768px) calc(50vw - 30px), (min-width: 480px) calc(100vw - 40px), calc(100vw - 40px)" ></div>..." Line: 456 Column: 29 - 988
"...ts/image"><img src="/en/files/images/201610/5/tesafilm-production-in-offenburg,48184_crop16x9_6.jpg" srcset="/en/files/images/201610/5/tesafilm-production-in-offenburg,48184_crop16x9_1.jpg 85w, /en/files/images/201610/5/tesafilm-production-in-offenburg,48184_crop16x9_2.jpg 190w, /en/files/images/201610/5/tesafilm-production-in-offenburg,48184_crop16x9_3.jpg 295w, /en/files/images/201610/5/tesafilm-production-in-offenburg,48184_crop16x9_4.jpg 400w, /en/files/images/201610/5/tesafilm-production-in-offenburg,48184_crop16x9_6.jpg 610w, /en/files/images/201610/5/tesafilm-production-in-offenburg,48184_crop16x9_9.jpg 925w, /en/files/images/201610/5/tesafilm-production-in-offenburg,48184_crop16x9_12.jpg 1240w, /en/files/images/201610/5/tesafilm-production-in-offenburg,48184_crop16x9_18.jpg 1870w" sizes="(min-width: 1200px) 590px, (min-width: 992px) calc(50vw - 50px), (min-width: 768px) calc(50vw - 30px), (min-width: 480px) calc(100vw - 40px), calc(100vw - 40px)" ></div>..."

Bad value for attribute “srcset” on element “img”: Width for image “/en/files/images/201608/6…eer,48198_crop16x9_12.jpg” is identical to width for image “/en/files/images/201608/6…reer,48198_crop16x9_9.jpg”.

Line: 377 Column: 29 - 849
"...ts/image"><img src="/en/files/images/201608/6/about-tesa-career,48198_crop16x9_3.jpg" srcset="/en/files/images/201608/6/about-tesa-career,48198_crop16x9_1.jpg 85w, /en/files/images/201608/6/about-tesa-career,48198_crop16x9_2.jpg 190w, /en/files/images/201608/6/about-tesa-career,48198_crop16x9_3.jpg 295w, /en/files/images/201608/6/about-tesa-career,48198_crop16x9_4.jpg 400w, /en/files/images/201608/6/about-tesa-career,48198_crop16x9_6.jpg 610w, /en/files/images/201608/6/about-tesa-career,48198_crop16x9_9.jpg 880w, /en/files/images/201608/6/about-tesa-career,48198_crop16x9_12.jpg 880w, /en/files/images/201608/6/about-tesa-career,48198_crop16x9_18.jpg 880w" sizes="(min-width: 1200px) 285px, (min-width: 992px) calc(25vw - 35px), (min-width: 768px) calc(25vw - 25px), (min-width: 480px) calc(50vw - 30px), calc(50vw - 30px)" ></div>..."

Bad value for attribute “srcset” on element “img”: Width for image “/en/files/images/201608/6…ion,48204_crop16x9_12.jpg” is identical to width for image “/en/files/images/201608/6…tion,48204_crop16x9_9.jpg”.

Line: 392 Column: 29 - 966
"...ts/image"><img src="/en/files/images/201608/6/about-tesa-company-information,48204_crop16x9_3.jpg" srcset="/en/files/images/201608/6/about-tesa-company-information,48204_crop16x9_1.jpg 85w, /en/files/images/201608/6/about-tesa-company-information,48204_crop16x9_2.jpg 190w, /en/files/images/201608/6/about-tesa-company-information,48204_crop16x9_3.jpg 295w, /en/files/images/201608/6/about-tesa-company-information,48204_crop16x9_4.jpg 400w, /en/files/images/201608/6/about-tesa-company-information,48204_crop16x9_6.jpg 610w, /en/files/images/201608/6/about-tesa-company-information,48204_crop16x9_9.jpg 880w, /en/files/images/201608/6/about-tesa-company-information,48204_crop16x9_12.jpg 880w, /en/files/images/201608/6/about-tesa-company-information,48204_crop16x9_18.jpg 880w" sizes="(min-width: 1200px) 285px, (min-width: 992px) calc(25vw - 35px), (min-width: 768px) calc(25vw - 25px), (min-width: 480px) calc(50vw - 30px), calc(50vw - 30px)" ></div>..."

Bad value for attribute “srcset” on element “img”: Width for image “/en/files/images/201610/6…ory,47855_crop16x9_12.jpg” is identical to width for image “/en/files/images/201610/6…tory,47855_crop16x9_9.jpg”.

Line: 407 Column: 29 - 858
"...ts/image"><img src="/en/files/images/201610/6/about-tesa-history,47855_crop16x9_3.jpg" srcset="/en/files/images/201610/6/about-tesa-history,47855_crop16x9_1.jpg 85w, /en/files/images/201610/6/about-tesa-history,47855_crop16x9_2.jpg 190w, /en/files/images/201610/6/about-tesa-history,47855_crop16x9_3.jpg 295w, /en/files/images/201610/6/about-tesa-history,47855_crop16x9_4.jpg 400w, /en/files/images/201610/6/about-tesa-history,47855_crop16x9_6.jpg 610w, /en/files/images/201610/6/about-tesa-history,47855_crop16x9_9.jpg 880w, /en/files/images/201610/6/about-tesa-history,47855_crop16x9_12.jpg 880w, /en/files/images/201610/6/about-tesa-history,47855_crop16x9_18.jpg 880w" sizes="(min-width: 1200px) 285px, (min-width: 992px) calc(25vw - 35px), (min-width: 768px) calc(25vw - 25px), (min-width: 480px) calc(50vw - 30px), calc(50vw - 30px)" ></div>..."

Bad value for attribute “srcset” on element “img”: Width for image “/en/files/images/201608/7…ss,139119_crop16x9_12.jpg” is identical to width for image “/en/files/images/201608/7…ess,139119_crop16x9_9.jpg”.

Line: 422 Column: 29 - 849
"...ts/image"><img src="/en/files/images/201608/7/about-tesa-press,139119_crop16x9_3.jpg" srcset="/en/files/images/201608/7/about-tesa-press,139119_crop16x9_1.jpg 85w, /en/files/images/201608/7/about-tesa-press,139119_crop16x9_2.jpg 190w, /en/files/images/201608/7/about-tesa-press,139119_crop16x9_3.jpg 295w, /en/files/images/201608/7/about-tesa-press,139119_crop16x9_4.jpg 400w, /en/files/images/201608/7/about-tesa-press,139119_crop16x9_6.jpg 610w, /en/files/images/201608/7/about-tesa-press,139119_crop16x9_9.jpg 880w, /en/files/images/201608/7/about-tesa-press,139119_crop16x9_12.jpg 880w, /en/files/images/201608/7/about-tesa-press,139119_crop16x9_18.jpg 880w" sizes="(min-width: 1200px) 285px, (min-width: 992px) calc(25vw - 35px), (min-width: 768px) calc(25vw - 25px), (min-width: 480px) calc(50vw - 30px), calc(50vw - 30px)" ></div>..."

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

Line: 683 Column: 1 - 4
"...-be"></i> <ul> <li><..." Line: 692 Column: 1 - 4
"...-ch"></i> <ul> <li><..."

Warnings

Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.

Line: 435 Column: 1 - 68
".../section> <section class="module" data-style="modules/related-topics-teasers"> <div ..."

The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.

Line: 474 Column: 1 - 17
"..."Footer"> <a name="footer"></a> <..."

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tesa.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.


tesa.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.