cancer.org Website Information

Daily Unique Visits: 2,411,181

Daily Page Views: 19,289,448

Income Per Day: $19,289

Estimated Value: $20,832,120

This website is located in United States and is using following IP address 40.71.250.191. See the complete list of popular websites hosted in United States.

cancer.org is registered under .ORG top-level domain. Please check other sites in .ORG zone.

Website cancer.org is using the following name servers:

ns12.customer.level3.net
ns3.cancer.org
ns2.cancer.org
ns25.customer.level3.net

and is probably hosted by MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US. See the full list of other websites hosted by MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US.

The highest website cancer.org position in Alexa rank database was 631 and the lowest rank position was 667. Current position of cancer.org in Alexa rank database is 632.

Desktop speed score of cancer.org (47/100) is better than the results of 20.85% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of cancer.org (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 cancer.org (36/100) is better than the results of 14.78% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

cancer.org 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.

cancer.org 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: CANCER.ORG
Registry Domain ID: D334440-LROR
Registrar WHOIS Server: whois.networksolutions.com
Registrar URL: http://www.networksolutions.com
Updated Date: 2020-07-08T01:54:24Z
Creation Date: 1994-10-06T04:00:00Z
Registry Expiry Date: 2029-10-05T04:00:00Z
Registrar Registration Expiration Date:
Registrar: Network Solutions, LLC
Registrar IANA ID: 2
Registrar Abuse Contact Email: abuse@web.com
Registrar Abuse Contact Phone: +1.8003337680
Reseller:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registrant Organization: The American Cancer Society
Registrant State/Province: GA
Registrant Country: US
Name Server: NS3-04.AZURE-DNS.ORG
Name Server: NS1-04.AZURE-DNS.COM
Name Server: NS2-04.AZURE-DNS.NET
Name Server: NS4-04.AZURE-DNS.INFO
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form https://www.icann.org/wicf/)
>>> Last update of WHOIS database: 2021-04-24T22:38:14Z

cancer.org server information

Servers Location

cancer.org desktop page speed rank

Last tested: 2019-12-02

Desktop Speed Bad

47/100

cancer.org Desktop Speed Test Quick Summary

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priority - 20Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 14 blocking script resources and 7 blocking CSS resources. This causes a delay in rendering your page.

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https://www.cancer.org/etc.clientlibs/clientlibs/g…6f4a3233b630c82d875.js
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priority - 10Leverage browser caching

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priority - 9Enable compression

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priority - 0Minify JavaScript

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priority - 0Minify HTML

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priority - 0Minify CSS

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cancer.org Desktop Resource Breakdown

Total Resources	221
Number of Hosts	88
Static Resources	42
JavaScript Resources	59
CSS Resources	9

cancer.org mobile page speed rank

Last tested: 2019-12-02

Mobile Speed Bad

36/100

cancer.org Mobile Speed Test Quick Summary

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priority - 80Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 14 blocking script resources and 7 blocking CSS resources. This causes a delay in rendering your page.

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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:

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priority - 9Enable compression

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priority - 0Minify JavaScript

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priority - 0Minify HTML

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priority - 0Minify CSS

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cancer.org Mobile Resource Breakdown

Total Resources	217
Number of Hosts	87
Static Resources	47
JavaScript Resources	62
CSS Resources	9

cancer.org mobile page usability

Last tested: 2019-12-02

Mobile Usability Good

99/100

cancer.org 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="#toolbarArea" class="skipLink">Skip to Content</a> is close to 1 other tap targets.

The tap target <button type="button" class="navbar-toggle…ile-nav-toggle"></button> is close to 2 other tap targets.

The tap target <a href="/" class="navbar-brand"></a> is close to 4 other tap targets.

The tap target <a href="/latest-news.html" class="light-blue-tile">Latest News</a> is close to 1 other tap targets.

cancer.org HTML validation

Errors

Element “meta” is missing one or more of the following attributes: “content”, “property”.

Line: 11 Column: 5 - 26
"...e=1"> <meta name="keywords"> <..."

Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)

Line: 303 Column: - 64
"...-chat-bubble"><?xml version="1..." Line: 398 Column: - 80
"...-chat-bubble"><?xml version="1..." Line: 852 Column: - 49
"... icon-cancer"><?xml version="1..." Line: 882 Column: - 52
"...on-treatment"><?xml version="1..." Line: 916 Column: - 50
"...icon-healthy"><?xml version="1..." Line: 950 Column: - 51
"...con-research"><?xml version="1..." Line: 993 Column: - 51
"...con-involved"><?xml version="1..." Line: 1124 Column: - 18
"... <?xml version="1..." Line: 1152 Column: - 18
"... <?xml version="1..." Line: 1180 Column: - 18
"... <?xml version="1..." Line: 1409 Column: - 14
"...> <?xml version="1..." Line: 1446 Column: - 14
"...> <?xml version="1..." Line: 1483 Column: - 14
"...> <?xml version="1..." Line: 1520 Column: - 14
"...> <?xml version="1..."

Stray doctype.

Line: 305 Column: 1 - 86
"..."UTF-8"?> <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> <svg ..." Line: 400 Column: 1 - 86
"..."UTF-8"?> <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> <svg ..." Line: 1126 Column: 1 - 86
"..."UTF-8"?> <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> <svg ..." Line: 1154 Column: 1 - 86
"..."UTF-8"?> <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> <svg ..." Line: 1182 Column: 1 - 86
"..."UTF-8"?> <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> <svg ..."

Duplicate ID “Layer_1”.

Line: 885 Column: 1 - 84
"...d 0) --> <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 36 36" style="enable-background:new 0 0 36 36;" xml:space="preserve"> <styl..." Line: 919 Column: 1 - 84
"...d 0) --> <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 36 36" style="enable-background:new 0 0 36 36;" xml:space="preserve"> <styl..." Line: 953 Column: 1 - 84
"...d 0) --> <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 36 36" style="enable-background:new 0 0 36 36;" xml:space="preserve"> <styl..." Line: 996 Column: 1 - 84
"...d 0) --> <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 36 36" style="enable-background:new 0 0 36 36;" xml:space="preserve"> <styl..." Line: 1412 Column: 1 - 84
"...d 0) --> <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 32 32" style="enable-background:new 0 0 32 32;" xml:space="preserve"> <g> ..." Line: 1449 Column: 1 - 84
"...d 0) --> <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 32 32" style="enable-background:new 0 0 32 32;" xml:space="preserve"> <g> ..." Line: 1486 Column: 1 - 84
"...d 0) --> <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 32 32" style="enable-background:new 0 0 32 32;" xml:space="preserve"> <g> ..." Line: 1523 Column: 1 - 84
"...d 0) --> <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 32 32" style="enable-background:new 0 0 32 32;" xml:space="preserve"> <g> ..."

Element “div” not allowed as child of element “h2” in this context. (Suppressing further errors from this subtree.)

Line: 1109 Column: 17 - 35
"... <h2><div class="inner"><span ..." Line: 1291 Column: 17 - 35
"... <h2><div class="inner"><span ..." Line: 1396 Column: 17 - 35
"... <h2><div class="inner"><span ..." Line: 1571 Column: 17 - 35
"... <h2><div class="inner"><span ..."

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

Line: 1229 Column: 13 - 35
"... <div class="addthis_toolbox addthis_default_style" addthis:url="https://www.cancer.org" addthis:title="American Cancer Society having this Hope Lodge for a family that has to go through something as traumatic as we are — I can't describe it... They've saved us so much money and so much stress. - Eileen Fauteux & Her Mother"> ..." Line: 1264 Column: 13 - 116
"... <div class="addthis_toolbox addthis_default_style" addthis:url="http://youtube.com/watch?v=F7L6SaWCTs4"> ..."

Attribute “addthis:title” not allowed on element “div” at this point.

Bad value “” for attribute “src” on element “iframe”: Must be non-empty.

Line: 1258 Column: 17 - 225
"... <iframe src="" allowfullscreen="allowfullscreen" mozallowfullscreen="mozallowfullscreen" msallowfullscreen="msallowfullscreen" oallowfullscreen="oallowfullscreen" webkitallowfullscreen="webkitallowfullscreen"></ifra..."

Attribute “mozallowfullscreen” not allowed on element “iframe” at this point.

Attribute “msallowfullscreen” not allowed on element “iframe” at this point.

Attribute “oallowfullscreen” not allowed on element “iframe” at this point.

Attribute “webkitallowfullscreen” not allowed on element “iframe” at this point.

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

Line: 1599 Column: 25 - 88
"... <div class="error-message txt_NewsletterSignUp_FirstNameErrors"></div>..." Line: 1608 Column: 25 - 87
"... <div class="error-message txt_NewsletterSignUp_LastNameErrors"></div>..." Line: 1619 Column: 25 - 91
"... <div class="error-message txt_NewsletterSignUp_EmailAddressErrors"></div>..."

The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “v” instead.

Line: 2262 Column: 1 - 9
"... = false; </script> <scri..."

Warnings

The “type” attribute is unnecessary for JavaScript resources.

Line: 23 Column: 1 - 119
"...ext/css"> <script type="text/javascript" src="/etc.clientlibs/clientlibs/granite/jquery.min.5e8d3382f82b03b0bf3fea3024eecd61.js"></scri..." Line: 24 Column: 1 - 118
"...</script> <script type="text/javascript" src="/etc.clientlibs/clientlibs/granite/utils.min.e8faccc9e37c6a5cb56e4ec514c8c104.js"></scri..." Line: 25 Column: 1 - 127
"...</script> <script type="text/javascript" src="/etc.clientlibs/clientlibs/granite/jquery/granite.min.a49068f9d07a3e0a2246180ace35badb.js"></scri..." Line: 26 Column: 1 - 111
"...</script> <script type="text/javascript" src="/etc/clientlibs/foundation/jquery.min.26df26a88f9f71ceabb6a15e7cb9c550.js"></scri..." Line: 27 Column: 1 - 109
"...</script> <script type="text/javascript" src="/etc/clientlibs/foundation/main.min.b0e37cd4a9e4a7e9533b8ae13c803716.js"></scri..." Line: 47 Column: 1 - 132
"... <script type="text/javascript" src="/etc.clientlibs/clientlibs/granite/jquery/granite/csrf.min.7c38388879e68856a949a756438995e8.js"></scri..." Line: 93 Column: 5 - 35
"...itle> <script type="text/javascript"> ..." Line: 113 Column: 1 - 121
"... <script type="text/javascript" src="/etc/designs/cancer.org/clientlib-analytics.min.1edbdb8b64e299aa4bdc9d28a33ada9d.js"></scri..." Line: 127 Column: 5 - 35
"...tyle> <script type="text/javascript"> ..." Line: 162 Column: 3 - 33
"...ript> <script type="text/javascript"> ..." Line: 242 Column: 5 - 35
"...ript> <script type="text/javascript"> ..." Line: 268 Column: 6 - 116
"...n"> <div><script type="text/javascript" src="/etc/clientlibs/foundation/shared.min.94566c45c6be1835dd4e8957eddeaefb.js"></scri..." Line: 269 Column: 1 - 126
"...</script> <script type="text/javascript" src="/etc.clientlibs/clientlibs/granite/lodash/modern.min.06d28202bf48e22a9d90673c8498c0d5.js"></scri..." Line: 270 Column: 1 - 127
"...</script> <script type="text/javascript" src="/etc/clientlibs/foundation/personalization/kernel.min.158c0a8d1bf23c2699e603fb39a0b385.js"></scri..." Line: 271 Column: 1 - 31
"...</script> <script type="text/javascript"> $..." Line: 316 Column: 29 - 81
"... <script language="JavaScript" type="text/javascript"> ..." Line: 319 Column: 29 - 81
"... <script language="JavaScript" type="text/javascript"> ..." Line: 410 Column: 41 - 93
"... <script language="JavaScript" type="text/javascript"> ..." Line: 413 Column: 41 - 93
"... <script language="JavaScript" type="text/javascript"> ..." Line: 454 Column: 1 - 31
"...v> </div> <script type="text/javascript"> func..." Line: 473 Column: 5 - 35
".../div> <script type="text/javascript"> d..." Line: 478 Column: 65 - 95
"... section"><script type="text/javascript"> win..." Line: 509 Column: 1 - 31
"...v> </div> <script type="text/javascript"> $(..." Line: 568 Column: 1 - 31
"...></div> <script type="text/javascript"> (..." Line: 595 Column: 1 - 31
"...> </div> <script type="text/javascript"> funct..." Line: 620 Column: 1 - 31
"...></div> <script type="text/javascript"> (..." Line: 648 Column: 1 - 31
"...> </div> <script type="text/javascript"> funct..." Line: 673 Column: 1 - 31
"...></div> <script type="text/javascript"> (..." Line: 701 Column: 1 - 31
"...> </div> <script type="text/javascript"> funct..." Line: 726 Column: 1 - 31
"...></div> <script type="text/javascript"> (..." Line: 754 Column: 1 - 31
"...> </div> <script type="text/javascript"> funct..." Line: 1584 Column: 1 - 135
"... <script type="text/javascript" src="/etc/designs/cancer.org/component-clientlib/email-sign-up.min.344871769fd4578f5c75cb7445114457.js"></scri..." Line: 1687 Column: 1 - 31
"...> </div> <script type="text/javascript"> funct..." Line: 2094 Column: 25 - 77
"... <script language="JavaScript" type="text/javascript"> ..." Line: 2097 Column: 25 - 77
"... <script language="JavaScript" type="text/javascript"> ..." Line: 2254 Column: 1 - 111
"...iv> <script type="text/javascript" src="/etc/designs/cancer.org/clientlib.min.d653cfb83ac68eb18a39c99c83843e39.js"></scri..." Line: 2258 Column: 1 - 125
"...cript> <script type="text/javascript" id="addthis_script" src="//s7.addthis.com/js/300/addthis_widget.js#pubid=ra-56f40af24672c478"> v..." Line: 2263 Column: 1 - 31
"...</script> <script type="text/javascript">_satel..."

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

Line: 316 Column: 29 - 81
"... <script language="JavaScript" type="text/javascript"> ..." Line: 319 Column: 29 - 81
"... <script language="JavaScript" type="text/javascript"> ..." Line: 410 Column: 41 - 93
"... <script language="JavaScript" type="text/javascript"> ..." Line: 413 Column: 41 - 93
"... <script language="JavaScript" type="text/javascript"> ..." Line: 2094 Column: 25 - 77
"... <script language="JavaScript" type="text/javascript"> ..." Line: 2097 Column: 25 - 77
"... <script language="JavaScript" type="text/javascript"> ..."

The first occurrence of ID “Layer_1” was here.

Line: 855 Column: 1 - 84
"...d 0) --> <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 36 36" style="enable-background:new 0 0 36 36;" xml:space="preserve"> <styl..." Line: 855 Column: 1 - 84
"...d 0) --> <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 36 36" style="enable-background:new 0 0 36 36;" xml:space="preserve"> <styl..." Line: 855 Column: 1 - 84
"...d 0) --> <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 36 36" style="enable-background:new 0 0 36 36;" xml:space="preserve"> <styl..." Line: 855 Column: 1 - 84
"...d 0) --> <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 36 36" style="enable-background:new 0 0 36 36;" xml:space="preserve"> <styl..." Line: 855 Column: 1 - 84
"...d 0) --> <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 36 36" style="enable-background:new 0 0 36 36;" xml:space="preserve"> <styl..." Line: 855 Column: 1 - 84
"...d 0) --> <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 36 36" style="enable-background:new 0 0 36 36;" xml:space="preserve"> <styl..." Line: 855 Column: 1 - 84
"...d 0) --> <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 36 36" style="enable-background:new 0 0 36 36;" xml:space="preserve"> <styl..." Line: 855 Column: 1 - 84
"...d 0) --> <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 36 36" style="enable-background:new 0 0 36 36;" xml:space="preserve"> <styl..."

Attribute “addthis:url” is not serializable as XML 1.0.

Attribute “addthis:title” is not serializable as XML 1.0.

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

Line: 1588 Column: 9 - 177
"... <form id="FormEmailSignUp" role="form" method="POST" action="/content/cancer/en/_jcr_content/par/section_870044641/parsys/email_sign_up.form.html" data-recaptcha="true"> <i..."

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cancer.org 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.

cancer.org 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.

CANCER.ORG Information and Resources about for Cancer: Breast, Colon, Lung, Prostate, Skin | American Cancer Society

cancer.org Website Information

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cancer.org desktop page speed rank

cancer.org Desktop Speed Test Quick Summary

priority - 86Optimize images

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

Optimize the following images to reduce their size by 835.3KiB (61% reduction).

priority - 20Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 14 blocking script resources and 7 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 10Leverage 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 - 9Enable 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 85KiB (79% reduction).

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 2.8KiB (46% reduction).

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 2.5KiB (11% 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 241B (12% reduction).

cancer.org Desktop Resource Breakdown

cancer.org mobile page speed rank

cancer.org Mobile Speed Test Quick Summary

priority - 89Optimize images

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

Optimize the following images to reduce their size by 870.4KiB (64% reduction).

priority - 80Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 14 blocking script resources and 7 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

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 - 9Enable 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 85KiB (79% reduction).

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 2.8KiB (46% reduction).

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 2.5KiB (11% 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 241B (12% reduction).

cancer.org Mobile Resource Breakdown

cancer.org mobile page usability

cancer.org 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.

cancer.org HTML validation

Errors

Element “meta” is missing one or more of the following attributes: “content”, “property”.

Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)

Stray doctype.

Duplicate ID “Layer_1”.

Element “div” not allowed as child of element “h2” in this context. (Suppressing further errors from this subtree.)

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

Attribute “addthis:title” not allowed on element “div” at this point.

Bad value “” for attribute “src” on element “iframe”: Must be non-empty.

Attribute “mozallowfullscreen” not allowed on element “iframe” at this point.

Attribute “msallowfullscreen” not allowed on element “iframe” at this point.

Attribute “oallowfullscreen” not allowed on element “iframe” at this point.

Attribute “webkitallowfullscreen” not allowed on element “iframe” at this point.

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

The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “v” instead.

Warnings

The “type” attribute is unnecessary for JavaScript resources.