alertdiver.com Website Information

Daily Unique Visits: 2,308

Daily Page Views: 6,924

Income Per Day: $21

Estimated Value: $7,560

This website is located in United States and is using following IP address 24.171.169.246. See the complete list of popular websites hosted in United States.

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

Website alertdiver.com is using the following name servers:

ns15.dnsmadeeasy.com
ns14.dnsmadeeasy.com
ns12.dnsmadeeasy.com
ns11.dnsmadeeasy.com
ns13.dnsmadeeasy.com
ns10.dnsmadeeasy.com

and is probably hosted by TIGGEE - Tiggee LLC, US. See the full list of other websites hosted by TIGGEE - Tiggee LLC, US.

The highest website alertdiver.com position in Alexa rank database was 106079 and the lowest rank position was 999148. Current position of alertdiver.com in Alexa rank database is 466058.

Desktop speed score of alertdiver.com (57/100) is better than the results of 31.79% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of alertdiver.com (62/100) is better than the results of 7.29% of other sites and means that the page is not mobile-friendly.

Mobile speed score of alertdiver.com (53/100) is better than the results of 39.51% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

alertdiver.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.

alertdiver.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: ALERTDIVER.COM
Registry Domain ID: 7991437_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Updated Date: 2024-07-15T18:30:21Z
Creation Date: 1999-07-14T16:37:45Z
Registry Expiry Date: 2025-07-14T16:37:45Z
Registrar: GoDaddy.com, LLC
Registrar IANA ID: 146
Registrar Abuse Contact Email: abuse@godaddy.com
Registrar Abuse Contact Phone: 480-624-2505
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientRenewProhibited https://icann.org/epp#clientRenewProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Name Server: NS10.DNSMADEEASY.COM
Name Server: NS11.DNSMADEEASY.COM
Name Server: NS12.DNSMADEEASY.COM
Name Server: NS13.DNSMADEEASY.COM
Name Server: NS14.DNSMADEEASY.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-11-11T05:47:50Z

alertdiver.com server information

Servers Location

alertdiver.com desktop page speed rank

Last tested: 2015-09-17

Desktop Speed Bad

57/100

alertdiver.com Desktop Speed Test Quick Summary

priority - 36Optimize images

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priority - 23Leverage 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:

http://feed.sponsorgarden.com/cdn/1203.gif (expiration not specified)
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http://www.alertdiver.com/css/fancybox.css (expiration not specified)
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http://www.alertdiver.com/images/DanLogo.png (expiration not specified)
http://www.alertdiver.com/images/Header.png (expiration not specified)
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http://www.alertdiver.com/images/sg/left.gif (expiration not specified)
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http://www.alertdiver.com/js/imgLiquid.js (expiration not specified)
http://www.alertdiver.com/js/jquery.js (expiration not specified)
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http://www.google-analytics.com/analytics.js (2 hours)

priority - 10Enable compression

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Enable compression for the following resources to reduce their transfer size by 101.4KiB (68% reduction).

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priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 8 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

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http://www.alertdiver.com/js/fancybox.js
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Optimize CSS Delivery of the following:

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priority - 2Prioritize 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 58% of the final above-the-fold content could be rendered with the full HTML response.

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 6.9KiB (8% reduction).

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priority - 1Minify CSS

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Minify CSS for the following resources to reduce their size by 5.5KiB (23% reduction).

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Minifying http://www.alertdiver.com/css/fancybox.css could save 1.6KiB (19% reduction).

alertdiver.com Desktop Resource Breakdown

Total Resources	54
Number of Hosts	9
Static Resources	47
JavaScript Resources	9
CSS Resources	2

alertdiver.com mobile page speed rank

Last tested: 2019-06-27

Mobile Speed Bad

53/100

alertdiver.com Mobile Speed Test Quick Summary

priority - 44Optimize images

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priority - 28Leverage 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:

http://alertdiver.com/css/fancybox.css (expiration not specified)
http://alertdiver.com/images/1s.png (expiration not specified)
http://alertdiver.com/images/2.png (expiration not specified)
http://alertdiver.com/images/3.png (expiration not specified)
http://alertdiver.com/images/4.png (expiration not specified)
http://alertdiver.com/images/5.png (expiration not specified)
http://alertdiver.com/images/6.png (expiration not specified)
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http://alertdiver.com/images/department-shadow.png (expiration not specified)
http://alertdiver.com/images/icons/blog.png (expiration not specified)
http://alertdiver.com/images/icons/photoTips.png (expiration not specified)
http://alertdiver.com/images/nav-shadow.png (expiration not specified)
http://alertdiver.com/images/pause.png (expiration not specified)
http://alertdiver.com/images/searchIcon.png (expiration not specified)
http://alertdiver.com/images/sg/left.gif (expiration not specified)
http://alertdiver.com/images/sg/pause.gif (expiration not specified)
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http://alertdiver.com/js/ad.js (expiration not specified)
http://alertdiver.com/js/fancybox.js (expiration not specified)
http://alertdiver.com/js/fancyboxinit.js (expiration not specified)
http://alertdiver.com/js/imgLiquid.js (expiration not specified)
http://alertdiver.com/js/jquery.js (expiration not specified)
http://alertdiver.com/js/simplegallery.js (expiration not specified)
http://www.alertdiver.com/cdn/19923.jpg (expiration not specified)
http://www.alertdiver.com/cdn/25494.jpg (expiration not specified)
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http://www.alertdiver.com/cdn/25702.jpg (expiration not specified)
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http://www.google-analytics.com/analytics.js (2 hours)

priority - 24Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 6 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

http://alertdiver.com/js/jquery.js
http://alertdiver.com/js/fancybox.js
http://alertdiver.com/js/fancyboxinit.js
http://alertdiver.com/js/simplegallery.js
http://alertdiver.com/js/ad.js
http://alertdiver.com/js/imgLiquid.js

Optimize CSS Delivery of the following:

http://alertdiver.com/css/std.css?id=66088
http://alertdiver.com/css/fancybox.css

priority - 0Minify 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 2.2KiB (36% reduction).

Minifying http://alertdiver.com/js/simplegallery.js could save 1.3KiB (34% reduction) after compression.
Minifying http://alertdiver.com/js/ad.js could save 911B (38% reduction) after compression.

priority - 0Minify 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 1KiB (19% reduction).

Minifying http://alertdiver.com/css/std.css?id=66088 could save 713B (18% reduction) after compression.
Minifying http://alertdiver.com/css/fancybox.css could save 322B (21% reduction) after compression.

alertdiver.com Mobile Resource Breakdown

Total Resources	51
Number of Hosts	6
Static Resources	47
JavaScript Resources	7
CSS Resources	2

alertdiver.com mobile page usability

Last tested: 2019-06-27

Mobile Usability Bad

62/100

alertdiver.com Mobile Usability Test Quick Summary

priority - 40Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.

The following text fragments have a small font size. Increase the font size to make them more legible.

DIVE MEDICAL CENTERS and 8 others render only 7 pixels tall (18 CSS pixels).

DAN Recompress…andard of Care and 25 others render only 4 pixels tall (10 CSS pixels).

Exploring the…ional Monument and 13 others render only 4 pixels tall (10 CSS pixels).

DAN is Your Di…ty Association renders only 6 pixels tall (16 CSS pixels).

Browse All Online Exclusives and 2 others render only 5 pixels tall (12 CSS pixels).

or renders only 5 pixels tall (12 CSS pixels).

Online Exclusives and 2 others render only 6 pixels tall (16 CSS pixels).

Raja Ampat Photo Gallery and 1 others render only 5 pixels tall (12 CSS pixels).

ADVERTISEMENT and 1 others render only 4 pixels tall (10 CSS pixels).

DIGITAL EDITION renders only 6 pixels tall (16 CSS pixels).

Flip through t…current issue. renders only 6 pixels tall (15 CSS pixels).

From the Medical Line and 7 others render only 5 pixels tall (12 CSS pixels).

Photography Tips and 1 others render only 5 pixels tall (12 CSS pixels).

SCUBAPRO Intro…ads-Up Display and 2 others render only 5 pixels tall (12 CSS pixels).

ADVERTISING OPPORTUNITIES and 4 others render only 4 pixels tall (10 CSS pixels).
| and 3 others render only 5 pixels tall (12 CSS pixels).
©2019 DAN HOLDINGS, INC. renders only 3 pixels tall (9 CSS pixels).
6/26/2019 3:29:01 PM renders only 3 pixels tall (9 CSS pixels).

Language: renders only 4 pixels tall (11 CSS pixels).

Spanish renders only 4 pixels tall (11 CSS pixels).

Portuguese renders only 4 pixels tall (11 CSS pixels).

HOME renders only 4 pixels tall (11 CSS pixels).

DIVE MEDICAL CENTERS and 8 others render only 4 pixels tall (11 CSS pixels).

QUIZZES renders only 4 pixels tall (11 CSS pixels).

priority - 15Size 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 <img id="s1" src="images/1s.png" class="imgButton"> and 6 others are close to other tap targets.

The tap target <a href="/?sectionno=46">Features</a> and 8 others are close to other tap targets.

The tap target <a href="/Raja-Ampat">Bathing in Biodiversity</a> and 26 others are close to other tap targets.

The tap target <a href="https://www.di…twork.org/join">Join</a> and 1 others are close to other tap targets.

The tap target <a href="?sectionNo=27">DAN MISSION</a> is close to 2 other tap targets.

The tap target <a href="/Freediving-Safety">Advanced Diving</a> and 7 others are close to other tap targets.

The tap target <a href="/rss">Blog</a> and 1 others are close to other tap targets.

The tap target <a href="/Think-Pink-2019">Dive into the…Photo Contest</a> and 2 others are close to other tap targets.

The tap target <a href="http://espanol.alertdiver.com" class="mx">Spanish</a> is close to 1 other tap targets.

The tap target <a href="http://portugu…alertdiver.com" class="pt">Portuguese</a> is close to 1 other tap targets.

The tap target <input id="adSearch" name="adSearch" class="watermark"> is close to 1 other tap targets.

The tap target <img src="/images/searchIcon.png"> is close to 1 other tap targets.

The tap target <a href="http://www.div…ertnetwork.org"></a> is close to 1 other tap targets.

The tap target <a href="/" class="current">HOME</a> is close to 1 other tap targets.

The tap target <a href="/?sectionno=46">Features</a> and 8 others are close to other tap targets.

The tap target <a href="?sectionNo=9999&quiz=true">QUIZZES</a> is close to 2 other tap targets.

priority - 10Configure the viewport

Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.

alertdiver.com HTML validation

Errors

Obsolete doctype. Expected “<!DOCTYPE html>”.

Line: 1 Column: 1 - 90
"...<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"><html>..."

Saw “<” when expecting an attribute name. Probable cause: Missing “>” immediately before.

Line: 2 Column: - 7
".../script> <meta <meta name='goo..."

Attribute “<meta” not allowed on element “meta” at this point.

Line: 2 Column: 1 - 100
"...</script> <meta <meta name='google-site-verification' content='siBlrDjdAnzUWFAZyXrn7gfZhQJv1iUmTFRhI7bc-bo' /><meta ..."

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

Line: 2 Column: 920 - 988
"...: -19px;'><img id='s1' onclick='nav(0)' src='/images/1s.png' class='imgButton'> <img ..." Line: 2 Column: 990 - 1057
"...gButton'> <img id='s2' onclick='nav(1)' src='/images/2.png' class='imgButton'> <img ..." Line: 2 Column: 1059 - 1126
"...gButton'> <img id='s3' onclick='nav(2)' src='/images/3.png' class='imgButton'> <img ..." Line: 2 Column: 1128 - 1195
"...gButton'> <img id='s4' onclick='nav(3)' src='/images/4.png' class='imgButton'> <img ..." Line: 2 Column: 1197 - 1264
"...gButton'> <img id='s5' onclick='nav(4)' src='/images/5.png' class='imgButton'> <img ..." Line: 2 Column: 1266 - 1333
"...gButton'> <img id='s6' onclick='nav(5)' src='/images/6.png' class='imgButton'> <img ..." Line: 2 Column: 1335 - 1417
"...gButton'> <img id='slidepop'onclick='slidePop()' src='/images/pause.png' class='imgButton'></div>..." Line: 2 Column: 2491 - 2613
"...gDisplay'><img style='height: 165px; xleft: -50px; position: relative' src='//www.danintranet.org/storymedia/23263.jpg' class='std'></div>..."

No space between attributes.

Line: 2 Column: - 1353
"...g id='slidepop'onclick='slideP..."

End tag “a” violates nesting rules.

Line: 2 Column: 2620 - 2623
"...td'></div></a></div>..."

Cannot recover after last error. Any further errors will be ignored.

Line: 2 Column: 2620 - 2623
"...td'></div></a></div>..."

Warnings

Attribute “<meta” is not serializable as XML 1.0.

Line: 2 Column: 1 - 100
"...</script> <meta <meta name='google-site-verification' content='siBlrDjdAnzUWFAZyXrn7gfZhQJv1iUmTFRhI7bc-bo' /><meta ..."

The “language” attribute on the “script” element is obsolete. You can safely omit it.

Line: 2 Column: 1451 - 1480
"...to'></div><script language='javascript'>var iH..."

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alertdiver.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.

alertdiver.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.

ALERTDIVER.COM Alert Diver - Divers Alert Network

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alertdiver.com desktop page speed rank

alertdiver.com Desktop Speed Test Quick Summary

priority - 36Optimize images

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

Optimize the following images to reduce their size by 348.4KiB (48% reduction).

priority - 23Leverage 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 - 10Enable 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 101.4KiB (68% reduction).

priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 8 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 2Prioritize 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 - 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 6.9KiB (8% reduction).

priority - 1Minify 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 5.5KiB (23% reduction).

alertdiver.com Desktop Resource Breakdown

alertdiver.com mobile page speed rank

alertdiver.com Mobile Speed Test Quick Summary

priority - 44Optimize images

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

Optimize the following images to reduce their size by 430.6KiB (33% reduction).

priority - 28Leverage 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 - 24Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 6 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 0Minify 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 2.2KiB (36% reduction).

priority - 0Minify 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 1KiB (19% reduction).

alertdiver.com Mobile Resource Breakdown

alertdiver.com mobile page usability

alertdiver.com Mobile Usability Test Quick Summary

priority - 40Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.

The following text fragments have a small font size. Increase the font size to make them more legible.

priority - 15Size 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.

priority - 10Configure the viewport

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alertdiver.com HTML validation

Errors

Obsolete doctype. Expected “<!DOCTYPE html>”.

Saw “<” when expecting an attribute name. Probable cause: Missing “>” immediately before.

Attribute “<meta” not allowed on element “meta” at this point.

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

No space between attributes.

End tag “a” violates nesting rules.

Cannot recover after last error. Any further errors will be ignored.

Warnings

Attribute “<meta” is not serializable as XML 1.0.

The “language” attribute on the “script” element is obsolete. You can safely omit it.

alertdiver.com similar domains

alertdiver.com Ping

alertdiver.com TRACEROUTE