zlib.net Website Information

Daily Unique Visits: 1,447,166

Daily Page Views: 11,577,328

Income Per Day: $11,577

Estimated Value: $12,503,160

This website is located in United States and is using following IP address 68.66.224.164. See the complete list of popular websites hosted in United States.

zlib.net is registered under .NET top-level domain. Please check other sites in .NET zone.

Website zlib.net is using the following name servers:

ns3.a2hosting.com
ns2.a2hosting.com
ns4.a2hosting.com
ns1.a2hosting.com

and is probably hosted by A2HOSTING - A2 Hosting, Inc., US. See the full list of other websites hosted by A2HOSTING - A2 Hosting, Inc., US.

The highest website zlib.net position in Alexa rank database was 989 and the lowest rank position was 998753. Current position of zlib.net in Alexa rank database is 1053.

Desktop speed score of zlib.net (92/100) is better than the results of 90.97% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of zlib.net (61/100) is better than the results of 5.47% of other sites and means that the page is not mobile-friendly.

Mobile speed score of zlib.net (90/100) is better than the results of 92.87% of other sites and shows that the landing page performance on mobile devices is excellent.

zlib.net 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.

zlib.net 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: ZLIB.NET
Registry Domain ID: 84558460_DOMAIN_NET-VRSN
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Updated Date: 2017-12-10T17:17:07Z
Creation Date: 2002-03-16T18:34:24Z
Registry Expiry Date: 2022-03-16T17:34:24Z
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.A2HOSTING.COM
Name Server: NS2.A2HOSTING.COM
Name Server: NS3.A2HOSTING.COM
Name Server: NS4.A2HOSTING.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2021-05-23T18:12:44Z

zlib.net server information

Servers Location

zlib.net desktop page speed rank

Last tested: 2018-11-09

Desktop Speed Good

92/100

zlib.net Desktop Speed Test Quick Summary

priority - 4Leverage 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://zlib.net/images/li_blue.png (expiration not specified)
http://zlib.net/images/li_green.png (expiration not specified)
http://zlib.net/images/li_red.png (expiration not specified)
http://zlib.net/images/li_yellow.png (expiration not specified)
http://zlib.net/images/zlib3d-b1.png (expiration not specified)
http://zlib.net/images/zlib_ddj.png (expiration not specified)
http://zlib.net/madler-email.png (expiration not specified)
http://zlib.net/zlib-email.png (expiration not specified)

priority - 2Enable 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 21.7KiB (71% reduction).

Compressing http://zlib.net/ could save 21.7KiB (71% reduction).

priority - 1Minify 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 8.7KiB (29% reduction).

Minifying http://zlib.net/ could save 8.7KiB (29% reduction).

zlib.net Desktop Resource Breakdown

Total Resources	9
Number of Hosts	1
Static Resources	8

zlib.net mobile page speed rank

Last tested: 2018-11-09

Mobile Speed Good

90/100

zlib.net Mobile Speed Test Quick Summary

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 - 2Enable 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 21.7KiB (71% reduction).

Compressing http://zlib.net/ could save 21.7KiB (71% reduction).

priority - 1Minify 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 8.7KiB (29% reduction).

Minifying http://zlib.net/ could save 8.7KiB (29% reduction).

zlib.net Mobile Resource Breakdown

Total Resources	9
Number of Hosts	1
Static Resources	8

zlib.net mobile page usability

Last tested: 2018-11-09

Mobile Usability Bad

61/100

zlib.net 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.

A Massively Sp…ession Library and 1 others render only 7 pixels tall (19 CSS pixels).

Related to the…e-I/O Library) and 1 others render only 6 pixels tall (16 CSS pixels).

Not renders only 6 pixels tall (16 CSS pixels).

(1) and in the…s available on and 37 others render only 6 pixels tall (16 CSS pixels).

zlib and 6 others render only 6 pixels tall (16 CSS pixels).

Ross Williams'…on Algorithms" and 93 others render only 6 pixels tall (16 CSS pixels).

Due to the bug…d with 1.2.11. and 13 others render only 6 pixels tall (16 CSS pixels).

Current release: renders only 6 pixels tall (16 CSS pixels).

January 15, 2017 renders only 6 pixels tall (16 CSS pixels).

Permit immedia…deflate input and 22 others render only 6 pixels tall (16 CSS pixels).

uncompress2() and 9 others render only 6 pixels tall (16 CSS pixels).

You can also l…t the complete and 1 others render only 6 pixels tall (16 CSS pixels).

takes an abbre…perty of CRCs. and 61 others render only 6 pixels tall (16 CSS pixels).

zlib Frequentl…sked Questions and 3 others render only 6 pixels tall (16 CSS pixels).

Real World Sca…and Halftones and 4 others render only 6 pixels tall (16 CSS pixels).

c3e5e9fdd5004d…6f8ca1197cb1a1 and 8 others render only 6 pixels tall (16 CSS pixels).

CRC (Cyclic Re…us Information and 3 others render only 7 pixels tall (19 CSS pixels).
RFC 1951 DEFLA…on version 1.3 and 2 others render only 6 pixels tall (16 CSS pixels).
December 15 and 2 others render only 6 pixels tall (16 CSS pixels).
manual and 1 others render only 6 pixels tall (16 CSS pixels).
th renders only 5 pixels tall (13 CSS pixels).
Web page copyr…Greg Roelofs, and 5 others render only 5 pixels tall (13 CSS pixels).
Jean-loup Gailly and 3 others render only 5 pixels tall (13 CSS pixels).
zlib.org renders only 5 pixels tall (13 CSS pixels).
domain name do…Andrew Green. renders only 5 pixels tall (13 CSS pixels).

priority - 18Size 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://www.libpng.org/pub/png/">PNG Home Page</a> and 85 others are close to other tap targets.

The tap target <a href="http://www.gzip.org/">gzip</a> and 3 others are close to other tap targets.

The tap target <a href="zlib_faq.html">zlib Frequentl…sked Questions</a> is close to 1 other tap targets.
The tap target <a href="http://tools.i…g/html/rfc1950">RFC 1950 ZLIB…on version 3.3</a> and 2 others are close to other tap targets.
The tap target <a href="http://gailly.net">Jean-loup Gailly</a> and 2 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.

zlib.net HTML validation

Errors

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

Line: 2 Column: 1 - 42
"...<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML..."

Internal encoding declaration “iso-8859-1” disagrees with the actual encoding of the document (“utf-8”).

Line: 5 Column: 1 - 72
"...L> <HEAD> <META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <TITL..."

Bad value “text/html; charset=ISO-8859-1” for attribute “content” on element “meta”: “iso-8859-1” is not a preferred encoding name. The preferred label for this encoding is “windows-1252”.

Line: 5 Column: 1 - 72
"...L> <HEAD> <META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <TITL..."

The “bgcolor” attribute on the “body” element is obsolete. Use CSS instead.

Line: 14 Column: 1 - 70
"...</HEAD> <BODY BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#00A000"> <H1 A..."

The “text” attribute on the “body” element is obsolete. Use CSS instead.

Line: 14 Column: 1 - 70
"...</HEAD> <BODY BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#00A000"> <H1 A..."

The “link” attribute on the “body” element is obsolete. Use CSS instead.

Line: 14 Column: 1 - 70
"...</HEAD> <BODY BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#00A000"> <H1 A..."

The “vlink” attribute on the “body” element is obsolete. Use CSS instead.

Line: 14 Column: 1 - 70
"...</HEAD> <BODY BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#00A000"> <H1 A..."

The “align” attribute on the “h1” element is obsolete. Use CSS instead.

Line: 15 Column: 1 - 19
"...#00A000"> <H1 ALIGN="center"> <IMG..."

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

Line: 17 Column: 2 - 13
"...center"> <IMG WIDTH=369 HEIGHT=204 ALIGN="middle" SRC="images/zlib3d-b1.png" ALT="zlib"> </H1>..." Line: 104 Column: 1 - 26
"...<HR> <P> <IMG WIDTH=159 HEIGHT=183 ALIGN="right" SRC="images/zlib_ddj.png" ALT="[DDJ's zlib image]"> <B>z..." Line: 137 Column: 1 - 66
"...e-mail at <img src="zlib-email.png" align="bottom" alt="zlib email address">. Plea..."

The “align” attribute on the “h3” element is obsolete. Use CSS instead.

Line: 25 Column: 1 - 19
".../H4 --> <H3 ALIGN="center"> A Ma..."

The “align” attribute on the “h4” element is obsolete. Use CSS instead.

Line: 29 Column: 1 - 19
"...ts) </H3> <H4 ALIGN="center"> (<I>..."

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

Line: 50 Column: 1 - 8
"...on). <P> <CENTER> C..."

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

Line: 54 Column: 5 - 20
"... <P> <FONT SIZE="+2"><B> zl..." Line: 869 Column: 7 - 22
"...t"> <FONT SIZE="-1"> ..." Line: 880 Column: 7 - 22
"...p"> <FONT SIZE="-1"> ..."

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

Line: 75 Column: 13 - 16
"...i>Improve <tt>compre..." Line: 75 Column: 37 - 40
"...</tt> and <tt>uncomp..." Line: 79 Column: 9 - 12
"...r <li>Add <tt>uncomp..." Line: 81 Column: 9 - 12
"...) <li>Add <tt>gzfrea..." Line: 81 Column: 32 - 35
"...</tt> and <tt>gzfwri..." Line: 82 Column: 35 - 38
"...rfaces of <tt>fread(..." Line: 82 Column: 56 - 59
"...</tt> and <tt>fwrite..." Line: 83 Column: 9 - 12
"...) <li>Add <tt>crc32_..." Line: 83 Column: 32 - 35
"...</tt> and <tt>adler3..." Line: 83 Column: 68 - 71
"...ions with <tt>size_t..." Line: 168 Column: 18 - 21
"...-256 hash <tt>c3e5e9..." Line: 189 Column: 18 - 21
"...-256 hash <tt>4ff941..." Line: 210 Column: 18 - 21
"...-256 hash <tt>d7510a..." Line: 331 Column: 9 - 12
"...> <tt>infgen..." Line: 373 Column: 27 - 30
"...ions.</A> <tt>crcany..." Line: 381 Column: 26 - 29
"... CRC.</A> <tt>spoof...." Line: 398 Column: 28 - 31
"...nts.</A> <tt>sunzip..." Line: 406 Column: 23 - 26
"...file.</A> <tt>zipkni..."

Element “dl” is missing a required child element.

Line: 93 Column: 5 - 8
"... <DL> <DD> C..." Line: 165 Column: 5 - 8
"... <DL> <DD> <..." Line: 172 Column: 9 - 12
"...> <DD> ..." Line: 193 Column: 9 - 12
"...> <DD> ..." Line: 214 Column: 9 - 12
"...> <DD> ..." Line: 268 Column: 5 - 8
"...<DL> <DD> <..." Line: 278 Column: 13 - 16
"... <DD> ..." Line: 289 Column: 13 - 16
"... <DD> ..." Line: 365 Column: 5 - 8
"...<DL> <DD> ..." Line: 395 Column: 5 - 8
"...<DL> <DD> ..." Line: 440 Column: 5 - 8
"...--> <DD> <..." Line: 589 Column: 13 - 16
"... <DD> ..." Line: 602 Column: 13 - 16
"... <DD> ..." Line: 667 Column: 13 - 16
"... <DD> ..." Line: 694 Column: 13 - 16
"... <DD> ..." Line: 757 Column: 13 - 16
"... <DD> ..." Line: 769 Column: 13 - 16
"... <DD> ..." Line: 781 Column: 13 - 16
"... <DD> ..." Line: 794 Column: 13 - 16
"... <DD> ..."

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

Line: 866 Column: 1 - 43
".../I> <HR> <TABLE WIDTH="100%" BORDER=0 CELLPADDING=0> <TR..."

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

Line: 866 Column: 1 - 43
".../I> <HR> <TABLE WIDTH="100%" BORDER=0 CELLPADDING=0> <TR..."

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

Line: 866 Column: 1 - 43
".../I> <HR> <TABLE WIDTH="100%" BORDER=0 CELLPADDING=0> <TR..."

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

Line: 868 Column: 7 - 21
"...=0> <TR> <TD ALIGN="left"> ..." Line: 879 Column: 10 - 35
"... </TD> <TD ALIGN="right" VALIGN="top"> ..."

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

Line: 879 Column: 10 - 35
"... </TD> <TD ALIGN="right" VALIGN="top"> ..."

Warnings

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

Line: 3 Column: 43 - 6
"...oose.dtd"> <HTML> <HEAD..."

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zlib.net 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.

zlib.net 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.

ZLIB.NET zlib Home Site

zlib.net Website Information

Advertisement

zlib.net Alexa Rank

zlib.net whois

zlib.net server information

Servers Location

zlib.net desktop page speed rank

zlib.net Desktop Speed Test Quick Summary

priority - 4Leverage 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 - 2Enable 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 21.7KiB (71% reduction).

priority - 1Minify 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 8.7KiB (29% reduction).

zlib.net Desktop Resource Breakdown

zlib.net mobile page speed rank

zlib.net Mobile Speed Test Quick Summary

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 - 2Enable 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 21.7KiB (71% reduction).

priority - 1Minify 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 8.7KiB (29% reduction).

zlib.net Mobile Resource Breakdown

zlib.net mobile page usability

zlib.net 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 - 18Size 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.

zlib.net HTML validation

Errors

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

Internal encoding declaration “iso-8859-1” disagrees with the actual encoding of the document (“utf-8”).

Bad value “text/html; charset=ISO-8859-1” for attribute “content” on element “meta”: “iso-8859-1” is not a preferred encoding name. The preferred label for this encoding is “windows-1252”.

The “bgcolor” attribute on the “body” element is obsolete. Use CSS instead.

The “text” attribute on the “body” element is obsolete. Use CSS instead.

The “link” attribute on the “body” element is obsolete. Use CSS instead.

The “vlink” attribute on the “body” element is obsolete. Use CSS instead.

The “align” attribute on the “h1” element is obsolete. Use CSS instead.

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

The “align” attribute on the “h3” element is obsolete. Use CSS instead.

The “align” attribute on the “h4” element is obsolete. Use CSS instead.

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

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

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

Element “dl” is missing a required child element.

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

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

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

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

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

Warnings

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

zlib.net similar domains

zlib.net Ping

zlib.net TRACEROUTE