spikedmath.com Website Information

Daily Unique Visits: 1,016

Daily Page Views: 2,032

Income Per Day: $6

Estimated Value: $1,440

spikedmath.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 ASN-GIGENET - GigeNET, US. See the full list of other websites hosted by ASN-GIGENET - GigeNET, US.

The highest website spikedmath.com position in Alexa rank database was 51815 and the lowest rank position was 998276. Current position of spikedmath.com in Alexa rank database is 705593.

Desktop speed score of spikedmath.com (37/100) is better than the results of 12.68% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of spikedmath.com (65/100) is better than the results of 13.11% of other sites and means that the page is not mobile-friendly.

Mobile speed score of spikedmath.com (34/100) is better than the results of 12.98% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

spikedmath.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.

spikedmath.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: SPIKEDMATH.COM
Registry Domain ID: 1566778629_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Updated Date: 2023-08-10T19:49:56Z
Creation Date: 2009-08-25T04:50:53Z
Registry Expiry Date: 2025-08-15T11:59:59Z
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: NS1.TREESPARROW.COM
Name Server: NS2.TREESPARROW.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-10-08T16:54:05Z

spikedmath.com server information

Servers Location

spikedmath.com desktop page speed rank

Last tested: 2018-11-28

Desktop Speed Bad

37/100

spikedmath.com Desktop Speed Test Quick Summary

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priority - 6Leverage browser caching

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priority - 4Optimize images

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priority - 2Eliminate render-blocking JavaScript and CSS in above-the-fold content

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priority - 1Minify JavaScript

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priority - 0Minify HTML

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spikedmath.com Desktop Resource Breakdown

Total Resources	148
Number of Hosts	50
Static Resources	70
JavaScript Resources	42
CSS Resources	7

spikedmath.com mobile page speed rank

Last tested: 2018-11-28

Mobile Speed Bad

34/100

spikedmath.com Mobile Speed Test Quick Summary

priority - 172Enable compression

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

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priority - 9Leverage browser caching

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priority - 4Optimize images

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priority - 1Minify JavaScript

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priority - 0Minify CSS

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priority - 0Minify HTML

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spikedmath.com Mobile Resource Breakdown

Total Resources	145
Number of Hosts	49
Static Resources	70
JavaScript Resources	43
CSS Resources	7

spikedmath.com mobile page usability

Last tested: 2018-11-28

Mobile Usability Medium

65/100

spikedmath.com Mobile Usability Test Quick Summary

priority - 28Use 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.

Spiked Math Games renders only 5 pixels tall (13 CSS pixels).

// and 2 others render only 5 pixels tall (13 CSS pixels).

Math Fail Blog renders only 5 pixels tall (13 CSS pixels).

Gauss Facts renders only 5 pixels tall (13 CSS pixels).

Spiked Math Comics renders only 5 pixels tall (13 CSS pixels).

Comments…te, pre, sup). and 10 others render only 5 pixels tall (13 CSS pixels).

October 17, 2018 renders only 5 pixels tall (13 CSS pixels).

Watch out for…, use the code and 2 others render only 5 pixels tall (13 CSS pixels).

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

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

arithmetic and 1 others render only 4 pixels tall (11 CSS pixels).

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

Permanent link for this comic renders only 7 pixels tall (18 CSS pixels).

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

to see what your friends like. and 1 others render only 4 pixels tall (11 CSS pixels).

Sign Up renders only 4 pixels tall (11 CSS pixels).

Leave a comment renders only 7 pixels tall (18 CSS pixels).

If you make a…ly fix it :-). and 5 others render only 5 pixels tall (13 CSS pixels).

recent comments and 2 others render only 5 pixels tall (13 CSS pixels).

javascript and 1 others render only 5 pixels tall (13 CSS pixels).

to comment, or…t anonymously. renders only 5 pixels tall (13 CSS pixels).

Welcome to Spiked Math! renders only 4 pixels tall (11 CSS pixels).

Hello my fello…th involved :D renders only 4 pixels tall (11 CSS pixels).

Email Spiked Math to me and 4 others render only 5 pixels tall (13 CSS pixels).

Browse the arc…Choose from a and 6 others render only 5 pixels tall (13 CSS pixels).

Other Math Comics and 1 others render only 5 pixels tall (13 CSS pixels).

Spiked Math Com… renders only 6 pixels tall (16 CSS pixels).

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

Spiked Math renders only 7 pixels tall (18 CSS pixels).

Like Page renders only 5 pixels tall (12 CSS pixels).

The Math Plane's weekly comic and 17 others render only 5 pixels tall (13 CSS pixels).

Site design an…censed under a and 7 others render only 4 pixels tall (11 CSS pixels).
Creative Commons License and 1 others render only 4 pixels tall (11 CSS pixels).

The following text fragments have a small line height. Increase the line height to make them more legible.

Hello my fello…th involved :D has a line height of only 109% of the font size.

priority - 14Size 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="http://spikedm…om/math-games/">Spiked Math Games</a> is close to 1 other tap targets.

The tap target <a href="http://math-fail.com/">Math Fail Blog</a> is close to 1 other tap targets.

The tap target <a href="http://www.gaussfacts.com">Gauss Facts</a> is close to 1 other tap targets.

The tap target <a href="http://spikedmath.com/586.html">Permanent link for this comic</a> is close to 1 other tap targets.

The tap target <a href="http://feeds.f…com/SpikedMath"></a> and 19 others are close to other tap targets.

The tap target <a href="https://plus.g…85742171346267">Google+ Page</a> and 5 others are close to other tap targets.

The tap target <a href="javascript:void(0)">Sign in</a> is close to 2 other tap targets.

The tap target <label for="comment-author">Name</label> and 3 others are close to other tap targets.

The tap target <input id="comment-author" name="author"> and 3 others are close to other tap targets.

The tap target <input id="comment-bake-cookie" type="checkbox" name="bakecookie"> is close to 2 other tap targets.

The tap target <label for="comment-bake-cookie">Remember personal info?</label> is close to 2 other tap targets.

The tap target <textarea id="comment-text"> is close to 1 other tap targets.

The tap target <input id="comment-preview" type="submit" name="preview_button"> is close to 3 other tap targets.
The tap target <input id="comment-submit" type="submit" name="post"> is close to 3 other tap targets.

The tap target <a href="https://plus.g…Comics?prsrc=5" class="Cae">Spiked Math Com…</a> is close to 2 other tap targets.

The tap target <div class="FP tKc t-Pa-mb-c-oa d-c">Follow</div> is close to 1 other tap targets.

The tap target <a href="https://m.face…kedmath.com%2F" class="_3-8_ lfloat"></a> is close to 1 other tap targets.

The tap target <img src="https://sconte…fa&oe=5C682CFB" class="_1drn _-s img"> is close to 3 other tap targets.

The tap target <a href="https://m.face…kedmath.com%2F" class="_1drp _5lv6">Spiked Math</a> is close to 2 other tap targets.

The tap target <div id="u_0_2" class="pluginConnectButton">Like PageLiked</div> is close to 1 other tap targets.

The tap target <a href="http://xkcd.com">xkcd</a> and 18 others are close to 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.

priority - 3Size content to viewport

The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.

The page content is 1,090 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:

The element <center></center> falls outside the viewport.
The element <div id="content-inner">586 I hate mat…r. Isomorpheus</div> falls outside the viewport.
The element <div class="widget-content">Site design an…he cookie jar.</div> falls outside the viewport.

spikedmath.com HTML validation

Errors

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Line: 2 Column: 1 - 62
"...<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html..."

The “center” element is obsolete. Use CSS instead.

Line: 156 Column: 13 - 20
"... <center> <a hr..." Line: 173 Column: 1 - 8
"...t"> <center> <a hr..." Line: 194 Column: 1 - 8
"...header"> <center> <a hr..." Line: 234 Column: 14 - 21
"... <center><img s..." Line: 235 Column: 13 - 20
"...r /><br /><center></cent..." Line: 252 Column: 1 - 8
"... <br /> <center> <div ..." Line: 256 Column: 1 - 8
"...> <br /> <center><a hre..." Line: 275 Column: 1 - 8
"... <br /> <center> <a hr..." Line: 734 Column: 1 - 8
"...> <br /> <center> <a hr..." Line: 746 Column: 7 - 14
"...hr> <br /><center> <a hr..." Line: 797 Column: 1 - 8
"...ontent"> <center> <br /..." Line: 812 Column: 1 - 8
"...> </div> <center> <div ..." Line: 820 Column: 1 - 8
"... <br /> <center> <div ..." Line: 833 Column: 1 - 8
"...> <br /> <center> <scri..." Line: 877 Column: 1 - 8
"...n: 5px;"> <center> <b><a..." Line: 933 Column: 13 - 20
"...r /><br /><center> <br /..." Line: 963 Column: 1 - 8
"...ntent"> <center> <br ..."

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

Line: 174 Column: 48 - 92
"...sskey="1"><img src="http://spikedmath.com/header5.png"></a></..." Line: 195 Column: 42 - 84
"...001.html"><img src="http://spikedmath.com/first.png"></a> &..." Line: 196 Column: 56 - 97
"...579.html"><img src="http://spikedmath.com/prev.png"></a> ..." Line: 197 Column: 98 - 142
"...ves.html"><img src="http://spikedmath.com/archive.png"></a> ..." Line: 199 Column: 33 - 74
"...math.com"><img src="http://spikedmath.com/last.png"></a> <..." Line: 257 Column: 150 - 191
"...p;topic="><img src="http://spikedmath.com/digg.png"></a>&n..." Line: 258 Column: 122 - 166
"...580.html"><img src="http://spikedmath.com/twitter.png"></a>&n..." Line: 259 Column: 132 - 177
"...ry Graph"><img src="http://spikedmath.com/facebook.png"></a>&n..." Line: 260 Column: 138 - 182
"...ry Graph"><img src="http://spikedmath.com/stumble.png"></a>&n..." Line: 261 Column: 108 - 151
"...ry Graph"><img src="http://spikedmath.com/reddit.png"></a>&n..." Line: 262 Column: 98 - 138
"...h Comics"><img src="http://spikedmath.com/del.png"></a>&n..." Line: 321 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/6c4e51d50a2ff399a4e2ad78ffb024c7?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 350 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/928004ca6ce20f6bc108490ea1e1757f?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 379 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/20932ba9ebfd18315c5802c8a0333039?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 408 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/db790b9d435578cb45e8c46be4ce1d1f?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 437 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/5719abeb636993e7c22c24c6c111d45d?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 466 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/924308118e6f0cd6988b68813f5e3974?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 495 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/e2909fd049b5c7650dc739684be7ff0a?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 524 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/924308118e6f0cd6988b68813f5e3974?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 553 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/924308118e6f0cd6988b68813f5e3974?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 582 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/924308118e6f0cd6988b68813f5e3974?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 611 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/924308118e6f0cd6988b68813f5e3974?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 735 Column: 42 - 84
"...001.html"><img src="http://spikedmath.com/first.png"></a> &..." Line: 736 Column: 56 - 97
"...579.html"><img src="http://spikedmath.com/prev.png"></a> ..." Line: 737 Column: 98 - 142
"...ves.html"><img src="http://spikedmath.com/archive.png"></a> ..." Line: 739 Column: 33 - 74
"...math.com"><img src="http://spikedmath.com/last.png"></a> <..." Line: 935 Column: 32 - 88
"...ail.com/"><img src="http://spikedmath.com/ad-mf.png" width="120px"></a><b..." Line: 937 Column: 39 - 98
"...om/forum"><img src="http://spikedmath.com/ad-forum.png" width="120px"></a><b..." Line: 939 Column: 45 - 104
"...h-games/"><img src="http://spikedmath.com/ad-games.png" width="120px"></a><b..." Line: 943 Column: 38 - 94
"...cts.com/"><img src="http://spikedmath.com/ad-gf.png" width="120px"></a><b..."

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

Line: 211 Column: 1 - 25
"...tes cast) <div id="raterentry1801"> <u..."

Duplicate ID “page-title”.

Line: 253 Column: 1 - 52
"... <center> <div id="page-title" class="asset-name entry-title"><font ..." Line: 290 Column: 1 - 51
"... <br /> <h1 id="page-title" class="asset-name entry-title"> <a hr..." Line: 761 Column: 1 - 51
"... <br /> <h1 id="page-title" class="asset-name entry-title"> <a hr..."

The “font” element is obsolete. Use CSS instead.

Line: 253 Column: 53 - 67
"...ry-title"><font size=4px><a hre..."

Bad value “http://digg.com/submit?phase=2&url=http://spikedmath.com/580.html&title=Spiked Math Comics - A Self-complementary Graph&topic=” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Line: 257 Column: 1 - 149
".../a>  <a href="http://digg.com/submit?phase=2&url=http://spikedmath.com/580.html&title=Spiked Math Comics - A Self-complementary Graph&topic="><img s..."

Bad value “http://twitter.com/home?status=Spiked Math Comics - A Self-complementary Graph: http://spikedmath.com/580.html” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Line: 258 Column: 1 - 121
".../a>  <a href="http://twitter.com/home?status=Spiked Math Comics - A Self-complementary Graph: http://spikedmath.com/580.html"><img s..."

Bad value “http://www.facebook.com/share.php?u=http://spikedmath.com/580.html&t=Spiked Math Comics - A Self-complementary Graph” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Line: 259 Column: 1 - 131
".../a>  <a href="http://www.facebook.com/share.php?u=http://spikedmath.com/580.html&t=Spiked Math Comics - A Self-complementary Graph"><img s..."

Bad value “http://www.stumbleupon.com/submit?url=http://spikedmath.com/580.html&title=Spiked Math Comics - A Self-complementary Graph” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Line: 260 Column: 1 - 137
".../a>  <a href="http://www.stumbleupon.com/submit?url=http://spikedmath.com/580.html&title=Spiked Math Comics - A Self-complementary Graph"><img s..."

Bad value “http://reddit.com/submit?url=http://spikedmath.com/580.html&title=A Self-complementary Graph” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Line: 261 Column: 1 - 107
".../a>  <a href="http://reddit.com/submit?url=http://spikedmath.com/580.html&title=A Self-complementary Graph"><img s..."

Bad value “http://del.icio.us/post?v=4&url=http://spikedmath.com&title=Spiked Math Comics” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Line: 262 Column: 1 - 97
".../a>  <a href="http://del.icio.us/post?v=4&url=http://spikedmath.com&title=Spiked Math Comics"><img s..."

The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.

Line: 265 Column: 1 - 316
"...r> <br /> <iframe src="http://www.facebook.com/plugins/like.php?href=http://spikedmath.com/580.html&layout=standard&show-faces=true&width=530&height=60&action=like&colorscheme=light" scrolling="no" frameborder="0" allowTransparency="true" style="border:none; overflow:hidden; width:530px; height:60px"></ifra..." Line: 855 Column: 1 - 267
"...s> <br /> <iframe src="http://www.facebook.com/plugins/likebox.php?id=128594422234&width=160&height=82&stream=false&header=false" allowtransparency="true" style="border: medium none; overflow: hidden; width: 160px; height: 82px;" frameborder="0" scrolling="no"></ifra..."

The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.

The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.

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

Line: 268 Column: 1 - 49
"...ender --> <g:plusone href="http://spikedmath.com/580.html"></g:pl..."

The “align” attribute on the “img” element is obsolete. Use CSS instead.

Line: 321 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/6c4e51d50a2ff399a4e2ad78ffb024c7?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 350 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/928004ca6ce20f6bc108490ea1e1757f?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 379 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/20932ba9ebfd18315c5802c8a0333039?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 408 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/db790b9d435578cb45e8c46be4ce1d1f?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 437 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/5719abeb636993e7c22c24c6c111d45d?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 466 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/924308118e6f0cd6988b68813f5e3974?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 495 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/e2909fd049b5c7650dc739684be7ff0a?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 524 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/924308118e6f0cd6988b68813f5e3974?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 553 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/924308118e6f0cd6988b68813f5e3974?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 582 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/924308118e6f0cd6988b68813f5e3974?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..." Line: 611 Column: 21 - 161
"... <img src="http://www.gravatar.com/avatar/924308118e6f0cd6988b68813f5e3974?&s=43&r=R&d=wavatar" align="left" vspace="0" hspace="5" /> ..."

The “vspace” attribute on the “img” element is obsolete. Use CSS instead.

The “hspace” attribute on the “img” element is obsolete. Use CSS instead.

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

Line: 853 Column: 1 - 100
"...ender --> <g:plus href="https://plus.google.com/105733185742171346267" width="170" height="131" theme="light"></g:pl..."

Bad value “120px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Line: 935 Column: 32 - 88
"...ail.com/"><img src="http://spikedmath.com/ad-mf.png" width="120px"></a><b..." Line: 937 Column: 39 - 98
"...om/forum"><img src="http://spikedmath.com/ad-forum.png" width="120px"></a><b..." Line: 939 Column: 45 - 104
"...h-games/"><img src="http://spikedmath.com/ad-games.png" width="120px"></a><b..." Line: 943 Column: 38 - 94
"...cts.com/"><img src="http://spikedmath.com/ad-gf.png" width="120px"></a><b..."

End tag “center” seen, but there were open elements.

Line: 1000 Column: 1 - 9
"...t> </div> </center> ..."

Unclosed element “div”.

Line: 967 Column: 17 - 44
"... <div class="widget-content"> ..." Line: 966 Column: 2 - 45
"... <br /> <div class="widget-creative-commons widget"> ..."

Stray end tag “div”.

Line: 1049 Column: 5 - 10
".../div> </div> </bod..."

Warnings

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

Line: 39 Column: 1 - 53
"....png" /> <script language="JavaScript" type="text/javascript"> fu..."

The first occurrence of ID “page-title” was here.

Line: 204 Column: 1 - 51
"...enter> <h1 id="page-title" class="asset-name entry-title">580</h..." Line: 204 Column: 1 - 51
"...enter> <h1 id="page-title" class="asset-name entry-title">580</h..." Line: 204 Column: 1 - 51
"...enter> <h1 id="page-title" class="asset-name entry-title">580</h..."

Element name “g:plusone” cannot be represented as XML 1.0.

Line: 268 Column: 1 - 49
"...ender --> <g:plusone href="http://spikedmath.com/580.html"></g:pl..."

Element name “g:plus” cannot be represented as XML 1.0.

Line: 853 Column: 1 - 100
"...ender --> <g:plus href="https://plus.google.com/105733185742171346267" width="170" height="131" theme="light"></g:pl..."

The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.

Line: 1040 Column: 1 - 109
"...y:none;"> <img src="//pixel.quantserve.com/pixel/p-YDgZr2_NHCxZr.gif" border="0" height="1" width="1" alt="Quantcast"/> </div..."

This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.

Line: 3 Column: 63 - 66
"...onal.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" id="sixapart-standard"> <head..."

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spikedmath.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.

spikedmath.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.

SPIKEDMATH.COM Spiked Math - Math Comic

spikedmath.com Website Information

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spikedmath.com Alexa Rank

spikedmath.com whois

spikedmath.com server information

Servers Location

spikedmath.com desktop page speed rank

spikedmath.com Desktop Speed Test Quick Summary

priority - 172Enable 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 1.6MiB (73% reduction).

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:

priority - 4Optimize images

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

Optimize the following images to reduce their size by 40.7KiB (23% reduction).

priority - 2Eliminate render-blocking JavaScript and CSS in above-the-fold content

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

Optimize CSS Delivery of the following:

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 13.5KiB (31% 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 4.7KiB (26% 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 4.2KiB (17% reduction).

spikedmath.com Desktop Resource Breakdown

spikedmath.com mobile page speed rank

spikedmath.com Mobile Speed Test Quick Summary

priority - 172Enable 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 1.6MiB (73% reduction).

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

Your page has 4 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 - 9Leverage 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 - 4Optimize images

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

Optimize the following images to reduce their size by 40.7KiB (23% reduction).

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 13.5KiB (30% 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 4.7KiB (26% 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 4.2KiB (17% reduction).

spikedmath.com Mobile Resource Breakdown

spikedmath.com mobile page usability

spikedmath.com Mobile Usability Test Quick Summary

priority - 28Use 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.

The following text fragments have a small line height. Increase the line height to make them more legible.

priority - 14Size 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

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.

priority - 3Size content to viewport

The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.

The page content is 1,090 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:

spikedmath.com HTML validation

Errors

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

The “center” element is obsolete. Use CSS instead.

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

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

Duplicate ID “page-title”.

The “font” element is obsolete. Use CSS instead.

Bad value “http://digg.com/submit?phase=2&url=http://spikedmath.com/580.html&title=Spiked Math Comics - A Self-complementary Graph&topic=” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Bad value “http://twitter.com/home?status=Spiked Math Comics - A Self-complementary Graph: http://spikedmath.com/580.html” for attribute “href” on element “a”: Illegal character in query: space is not allowed.