AlexaWhoisServer InformationDesktop SpeedMobile SpeedMobile UsabilityHTML ErrorsPingTraceroute

KNOTPLOT.COM The KnotPlot Site

knotplot.com Website Information

Daily Unique Visits: 847

Daily Page Views: 1,694

Income Per Day: $5

Estimated Value: $1,200

knotplot.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 COGECO-PEER1 - Cogeco Peer 1, CA. See the full list of other websites hosted by COGECO-PEER1 - Cogeco Peer 1, CA.

The highest website knotplot.com position in Alexa rank database was 123900 and the lowest rank position was 999427. Current position of knotplot.com in Alexa rank database is 846763.

Desktop speed score of knotplot.com (91/100) is better than the results of 90.07% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of knotplot.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 knotplot.com (88/100) is better than the results of 91.94% of other sites and shows that the landing page performance on mobile devices is excellent.

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knotplot.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.

knotplot.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: KNOTPLOT.COM
Registry Domain ID: 39891741_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.webnames.ca
Registrar URL: http://www.webnames.ca
Updated Date: 2023-07-05T15:01:06Z
Creation Date: 2000-11-05T20:42:06Z
Registry Expiry Date: 2023-11-05T20:42:06Z
Registrar: Webnames.ca Inc.
Registrar IANA ID: 456
Registrar Abuse Contact Email: abuse@webnames.ca
Registrar Abuse Contact Phone: 18662217878
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS1.WEBNAMES.CA
Name Server: NS2.WEBNAMES.CA
Name Server: NS3.WEBNAMES.CA
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2023-09-02T13:52:25Z

knotplot.com server information

Servers Location

knotplot.com desktop page speed rank

Last tested: 2019-03-05

Desktop Speed Good
91/100

knotplot.com Desktop Speed Test Quick Summary


priority - 7Leverage 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://knotplot.com/KPSbanner/5.jpg (expiration not specified)
https://knotplot.com/OGL_sm.gif (expiration not specified)
https://knotplot.com/inlines/BRchain0.gif (expiration not specified)
https://knotplot.com/inlines/BunchaLinks.gif (expiration not specified)
https://knotplot.com/inlines/celt7.gif (expiration not specified)
https://knotplot.com/inlines/featab.gif (expiration not specified)
https://knotplot.com/inlines/featcd.gif (expiration not specified)
https://knotplot.com/inlines/infinity.gif (expiration not specified)
https://knotplot.com/inlines/k2swish.gif (expiration not specified)
https://knotplot.com/inlines/k3swish.gif (expiration not specified)
https://knotplot.com/inlines/new3.jpg (expiration not specified)
https://knotplot.com/inlines/torus11.27.gif (expiration not specified)
https://www.googletagservices.com/activeview/js/cu…osd.js?cb=%2Fr20100101 (50 minutes)
https://pagead2.googlesyndication.com/pagead/show_ads.js (60 minutes)

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 7.5KiB (55% reduction).

Minifying https://search.yahoo.com/?fr=altavista could save 6.6KiB (95% reduction) after compression.
Minifying http://www.google-analytics.com/urchin.js could save 975B (15% reduction) after compression.

priority - 1Optimize images

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

Optimize the following images to reduce their size by 6.4KiB (35% reduction).

Compressing https://knotplot.com/inlines/new3.jpg could save 5KiB (87% reduction).
Compressing https://knotplot.com/KPSbanner/5.jpg could save 1.1KiB (11% reduction).
Compressing https://knotplot.com/OGL_sm.gif could save 248B (14% 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 1.1KiB (18% reduction).

Minifying https://knotplot.com/ could save 1.1KiB (18% reduction) after compression.

knotplot.com Desktop Resource Breakdown

Total Resources29
Number of Hosts10
Static Resources17
JavaScript Resources7

knotplot.com mobile page speed rank

Last tested: 2019-03-05

Mobile Speed Good
88/100

knotplot.com Mobile Speed Test Quick Summary


priority - 11Leverage 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://knotplot.com/KPSbanner/5.jpg (expiration not specified)
https://knotplot.com/OGL_sm.gif (expiration not specified)
https://knotplot.com/inlines/BRchain0.gif (expiration not specified)
https://knotplot.com/inlines/BunchaLinks.gif (expiration not specified)
https://knotplot.com/inlines/celt7.gif (expiration not specified)
https://knotplot.com/inlines/featab.gif (expiration not specified)
https://knotplot.com/inlines/featcd.gif (expiration not specified)
https://knotplot.com/inlines/infinity.gif (expiration not specified)
https://knotplot.com/inlines/k2swish.gif (expiration not specified)
https://knotplot.com/inlines/k3swish.gif (expiration not specified)
https://knotplot.com/inlines/new3.jpg (expiration not specified)
https://knotplot.com/inlines/torus11.27.gif (expiration not specified)
https://www.googletagservices.com/activeview/js/cu…osd.js?cb=%2Fr20100101 (50 minutes)
https://www.googletagservices.com/activeview/js/cu…ner.js?cache=r20110914 (50 minutes)
https://pagead2.googlesyndication.com/pagead/show_ads.js (60 minutes)

priority - 1Optimize images

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

Optimize the following images to reduce their size by 6.4KiB (35% reduction).

Compressing https://knotplot.com/inlines/new3.jpg could save 5KiB (87% reduction).
Compressing https://knotplot.com/KPSbanner/5.jpg could save 1.1KiB (11% reduction).
Compressing https://knotplot.com/OGL_sm.gif could save 248B (14% 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 1.1KiB (18% reduction).

Minifying https://knotplot.com/ could save 1.1KiB (18% reduction) after compression.

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 975B (15% reduction).

Minifying http://www.google-analytics.com/urchin.js could save 975B (15% reduction) after compression.

knotplot.com Mobile Resource Breakdown

Total Resources41
Number of Hosts14
Static Resources24
JavaScript Resources13
CSS Resources1

knotplot.com mobile page usability

Last tested: 2019-03-05

Mobile Usability Bad
62/100

knotplot.com Mobile Usability Test Quick Summary


priority - 39Use 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.

Welcome to the KnotPlot Site! renders only 7 pixels tall (18 CSS pixels).

Here you will…nd manipulate and 12 others render only 5 pixels tall (13 CSS pixels).

Centre for Exp…ve Mathematics and 22 others render only 5 pixels tall (13 CSS pixels).

Download KnotPlot renders only 6 pixels tall (15 CSS pixels).

for Windows, MacOSX and Linux renders only 6 pixels tall (15 CSS pixels).

Knot Pictures and 1 others render only 7 pixels tall (19 CSS pixels).

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

Help keep the…ke a donation. and 1 others render only 5 pixels tall (13 CSS pixels).

Pages with lit…esting content and 7 others render only 6 pixels tall (15 CSS pixels).

Symmetric proj…al-stick knots and 50 others render only 5 pixels tall (13 CSS pixels).

M and 3 others render only 5 pixels tall (13 CSS pixels).

(experimental,…ve 3D models). and 30 others render only 5 pixels tall (13 CSS pixels).

Interactive To…ogical Drawing renders only 5 pixels tall (13 CSS pixels).

Knots can be l…knot types ( and 24 others render only 5 pixels tall (13 CSS pixels).

@hypnagogic.net> and 3 others render only 5 pixels tall (13 CSS pixels).

Caribbean and 2 others render only 8 pixels tall (20 CSS pixels).
go.auamed.org renders only 5 pixels tall (12 CSS pixels).
University Of and 2 others render only 5 pixels tall (14 CSS pixels).
Clinicals in the and 6 others render only 5 pixels tall (14 CSS pixels).
OPEN renders only 5 pixels tall (13 CSS pixels).
Author renders only 7 pixels tall (19 CSS pixels).
and post your…ts in general! and 1 others render only 5 pixels tall (13 CSS pixels).
Robert G. Scharein and 1 others render only 5 pixels tall (13 CSS pixels).
It was last mo…/2018 14:22:15 and 2 others render only 5 pixels tall (13 CSS pixels).
The KnotPlot Site renders only 5 pixels tall (13 CSS pixels).
https://knotplot.com/ renders only 5 pixels tall (13 CSS pixels).
Unauthorized h…sly forbidden. and 1 others render only 5 pixels tall (13 CSS pixels).
no symbols where none intended renders only 4 pixels tall (10 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 <a href="se/">Knots as radiating tubes</a> and 47 others are close to other tap targets.

The tap target <a href="thesis/">Interactive To…ogical Drawing</a> is close to 2 other tap targets.

The tap target <a href="knot-theory/chains.html">chains</a> and 13 others are close to other tap targets.
The tap target <a href="phpBB/">Bulletin Board</a> is close to 1 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.

knotplot.com HTML validation

Errors

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

Line: 1 Column: 1 - 63
"...<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html..."

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

Line: 86 Column: 1 - 8
"...d> <body> <center> <sc..." Line: 117 Column: 1 - 8
".../p> --> <center><img s..." Line: 119 Column: 1 - 8
"...ize="+1"> <center>Welcom..." Line: 134 Column: 1 - 8
"...ng> </p> <center><img s..." Line: 136 Column: 1 - 8
"...> <p></p> <center> <tabl..." Line: 143 Column: 7 - 14
"... <center> ..." Line: 445 Column: 1 - 8
"...bsp;</p> <center><img s..." Line: 447 Column: 1 - 8
"...> <p></p> <center> <tabl..." Line: 454 Column: 7 - 14
"... <center> ..." Line: 498 Column: 1 - 8
"... <p></p> <center><img s..." Line: 500 Column: 1 - 8
"...> <p></p> <center> <tabl..." Line: 633 Column: 1 - 8
"...r> --> <center> <p> J..." Line: 641 Column: 1 - 8
"...center> <center> <scri..." Line: 646 Column: 1 - 8
"...font></p> <center><font ..." Line: 668 Column: 1 - 8
"...> <p></p> <center> <!--<..."

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

Line: 117 Column: 9 - 64
"... <center><img src="inlines/BRchain0.gif" width="612" height="18"></cent..." Line: 134 Column: 9 - 64
"... <center><img src="inlines/BRchain0.gif" width="612" height="18"></cent..." Line: 141 Column: 24 - 13
"...gn="left"><img src="inlines/k2swish.gif" height="122" width="122"> </td>..." Line: 148 Column: 25 - 26
"...n="right"><img align="middle" src="inlines/k3swish.gif" height="122" width="122"></td> ..." Line: 158 Column: 1 - 51
"...ed with <img src="inlines/new3.jpg" width="40" height="13"> have..." Line: 196 Column: 1 - 51
"...b></font> <img src="inlines/new3.jpg" width="40" height="13"> </li..." Line: 202 Column: 1 - 51
"...tubes</a> <img src="inlines/new3.jpg" width="40" height="13"> </li..." Line: 209 Column: 1 - 51
"...sp;&nbsp; <img src="inlines/new3.jpg" width="40" height="13"> </li..." Line: 221 Column: 1 - 51
"... KnotPlot <img src="inlines/new3.jpg" width="40" height="13"> </li..." Line: 280 Column: 1 - 51
"...knots</a> <img src="inlines/new3.jpg" width="40" height="13"> </li..." Line: 359 Column: 1 - 51
"...V-Ray</a> <img src="inlines/new3.jpg" width="40" height="13"> </li..." Line: 364 Column: 1 - 51
"...mator</a> <img src="inlines/new3.jpg" width="40" height="13"> </li..." Line: 445 Column: 9 - 64
"... <center><img src="inlines/BRchain0.gif" width="612" height="18"></cent..." Line: 495 Column: 50 - 70
"...nks.html"><img src="inlines/BunchaLinks.gif" align="middle" width="176" height="40"></a> t..." Line: 498 Column: 9 - 64
"...> <center><img src="inlines/BRchain0.gif" width="612" height="18"></cent..." Line: 671 Column: 1 - 55
"...-> <br /> <img src="inlines/infinity.gif" width="68" height="68"> <p><f..."

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

Line: 118 Column: 4 - 19
"...enter> <p><font size="+1"> <cent..." Line: 119 Column: 9 - 37
"...> <center>Welcome to the KnotPlot Site!</cent..." Line: 119 Column: - 47
"...!</center> </font..." Line: 155 Column: 2 - 23
"...nots</a> (<font color="#006600"><b>M</..." Line: 160 Column: 9 - 30
"...d with an <font color="#006600"><b>M</..." Line: 195 Column: 44 - 17
"...tubes</a> <font color="#006600"><b>M</..." Line: 244 Column: 40 - 17
"...Links</a> <font color="#006600"><b>M</..." Line: 404 Column: 46 - 67
"...owers</a> <font color="#006600"><b>M</..." Line: 419 Column: 41 - 62
"...Torus</a> <font color="#006600"><b>M</..." Line: 645 Column: 4 - 18
"...nter> <p><font size="2"></font..." Line: 646 Column: 9 - 23
"...> <center><font size="2"> <scri..." Line: 659 Column: 4 - 18
".../font> <p><font size="2">Copyri..." Line: 672 Column: 4 - 18
"...="68"> <p><font size="1"><a hre..."

End tag “p” implied, but there were open elements.

Line: 119 Column: 1 - 8
"...ize="+1"> <center>Welcom..."

Unclosed element “font”.

Line: 118 Column: 4 - 19
"...enter> <p><font size="+1"> <cent..."

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

Line: 119 Column: 38 - 46
"...Plot Site!</center> </fon..."

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

Line: 126 Column: 1 - 4
"...ensions. </p> <p c..."

The “width” attribute on the “table” element is obsolete. Use CSS instead.

Line: 137 Column: 1 - 19
"... <center> <table width="612"> <tb..." Line: 448 Column: 1 - 19
"... <center> <table width="612"> <tb..." Line: 501 Column: 1 - 19
"... <center> <table width="612"> <tb..."

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

Line: 140 Column: 9 - 23
"...> <tr> <td align="left"><img s..." Line: 147 Column: 12 - 24
"... </td> <td align="right"><img a..." Line: 451 Column: 9 - 23
"...> <tr> <td align="left"><img a..." Line: 458 Column: 12 - 24
"... </td> <td align="right"><img a..." Line: 504 Column: 9 - 23
"...> <tr> <td align="left"><img a..." Line: 509 Column: 12 - 24
"... </td> <td align="right"><img a..."

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

Line: 148 Column: 25 - 26
"...n="right"><img align="middle" src="inlines/k3swish.gif" height="122" width="122"></td> ..." Line: 452 Column: 24 - 33
"...gn="left"><img align="middle" src="inlines/featab.gif" alt=" " width="164" height="82"></td> ..." Line: 459 Column: 25 - 33
"...n="right"><img align="middle" src="inlines/featcd.gif" alt=" " width="164" height="82"></td> ..." Line: 492 Column: 51 - 16
"...engl.org"><img src="https://knotplot.com/OGL_sm.gif" alt="OpenGL logo" width="68" height="32" border="0" align="middle"></a> <..." Line: 495 Column: 50 - 70
"...nks.html"><img src="inlines/BunchaLinks.gif" align="middle" width="176" height="40"></a> t..." Line: 505 Column: 24 - 45
"...gn="left"><img align="middle" src="inlines/torus11.27.gif" alt="[Torus knot]" width="165" height="165"></td> ..." Line: 510 Column: 25 - 45
"...n="right"><img align="middle" src="inlines/celt7.gif" alt="[Fancy knot]" width="165" height="165"></td> ..."

Attribute “border” not allowed on element “input” at this point.

Line: 173 Column: 1 - 165
"...PVM3B4U"> <input type="image" src="https://www.paypalobjects.com/en_US/i/btn/btn_donateCC_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!"> <img ..."

The “language” attribute on the “script” element is obsolete. Use the “type” attribute instead.

Line: 642 Column: 1 - 71
"... <center> <script language="JavaScript1.2" src="http://www.altavista.com/r?entr"></scri..."

Warnings

The “type” attribute for the “style” element is not needed and should be omitted.

Line: 13 Column: 1 - 23
".../title> <style type="text/css"> body,..."

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

Line: 174 Column: 1 - 102
"...online!"> <img alt="" border="0" src="https://www.paypalobjects.com/en_US/i/scr/pixel.gif" width="1" height="1"> </for..." Line: 492 Column: 51 - 16
"...engl.org"><img src="https://knotplot.com/OGL_sm.gif" alt="OpenGL logo" width="68" height="32" border="0" align="middle"></a> <..."

The “type” attribute is unnecessary for JavaScript resources.

Line: 426 Column: 1 - 31
"...ooglead"> <script type="text/javascript"><!-- g..." Line: 440 Column: 1 - 65
"...</script> <script type="text/javascript" src="https://pagead2.googlesyndication.com/pagead/show_ads.js"> </scr..." Line: 676 Column: 1 - 79
"...<br> <br> <script src="http://www.google-analytics.com/urchin.js" type="text/javascript"> </scr..." Line: 678 Column: 1 - 31
"...</script> <script type="text/javascript"> _uacc..."

The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.

Line: 487 Column: - 3
"...ded from the --->KnotPlot is a..." Line: 522 Column: - 85
".../a> <!--- OK --->Computer Grap..."

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

Line: 2 Column: 64 - 6
"...onal//EN"> <html> <head..."

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knotplot.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.

knotplot.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.