AlexaWhoisServer InformationDesktop SpeedMobile SpeedMobile UsabilityHTML ErrorsPingTraceroute

CONTRASTECH.COM HANGZHOU CONTRASTECH CO., LTD.

contrastech.com Website Information

Daily Unique Visits: 1,042

Daily Page Views: 2,084

Income Per Day: $6

Estimated Value: $1,440

This website is located in Hong Kong and is using following IP address 119.28.77.38. See the complete list of popular websites hosted in Hong Kong.

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

Website contrastech.com is using the following name servers:

  • ns4.cnolnic.com
  • ns3.cnolnic.com

and is probably hosted by West263 International Limited. See the full list of other websites hosted by West263 International Limited.

The highest website contrastech.com position in Alexa rank database was 109243 and the lowest rank position was 991792. Current position of contrastech.com in Alexa rank database is 688382.

Desktop speed score of contrastech.com (56/100) is better than the results of 30.56% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of contrastech.com (64/100) is better than the results of 11.2% of other sites and means that the page is not mobile-friendly.

Mobile speed score of contrastech.com (59/100) is better than the results of 52.41% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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contrastech.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.

contrastech.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: CONTRASTECH.COM
Registry Domain ID: 1691375775_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.zzy.cn
Registrar URL: http://www.zzy.cn
Updated Date: 2022-06-14T11:31:50Z
Creation Date: 2011-12-10T01:21:54Z
Registry Expiry Date: 2025-12-10T01:21:54Z
Registrar: Xiamen ChinaSource Internet Service Co., Ltd
Registrar IANA ID: 1366
Registrar Abuse Contact Email: kf@zzy.cn
Registrar Abuse Contact Phone: +86.5922958888
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS3.CNOLNIC.COM
Name Server: NS4.CNOLNIC.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2022-10-31T19:42:53Z

contrastech.com server information

Servers Location

contrastech.com desktop page speed rank

Last tested: 2019-02-16

Desktop Speed Bad
56/100

contrastech.com Desktop Speed Test Quick Summary


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priority - 17Leverage browser caching

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priority - 6Reduce server response time

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priority - 4Eliminate render-blocking JavaScript and CSS in above-the-fold content

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priority - 0Minify HTML

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contrastech.com Desktop Resource Breakdown

Total Resources44
Number of Hosts5
Static Resources42
JavaScript Resources6
CSS Resources3

contrastech.com mobile page speed rank

Last tested: 2019-02-16

Mobile Speed Bad
59/100

contrastech.com Mobile Speed Test Quick Summary


priority - 25Leverage browser caching

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priority - 24Optimize images

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priority - 16Eliminate render-blocking JavaScript and CSS in above-the-fold content

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priority - 9Reduce server response time

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priority - 0Minify HTML

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priority - 0Minify CSS

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priority - 0Minify JavaScript

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contrastech.com Mobile Resource Breakdown

Total Resources43
Number of Hosts5
Static Resources41
JavaScript Resources6
CSS Resources3

contrastech.com mobile page usability

Last tested: 2019-02-16

Mobile Usability Bad
64/100

contrastech.com Mobile Usability Test Quick Summary


priority - 34Use 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.

Information and 6 others render only 5 pixels tall (14 CSS pixels).

The industrial…affect the... renders only 5 pixels tall (14 CSS pixels).

See All Industrial Camera renders only 7 pixels tall (18 CSS pixels).

Product Overview renders only 7 pixels tall (18 CSS pixels).

We provide hig…imaging field. renders only 5 pixels tall (12 CSS pixels).

Machine Vision Software and 3 others render only 5 pixels tall (14 CSS pixels).

Quick Search renders only 7 pixels tall (18 CSS pixels).

Model Helper--…Product Easily renders only 5 pixels tall (12 CSS pixels).

Search Product renders only 5 pixels tall (14 CSS pixels).

Product Display renders only 7 pixels tall (18 CSS pixels).

Popular Product: renders only 5 pixels tall (12 CSS pixels).

EXGM360GS E... and 5 others render only 5 pixels tall (12 CSS pixels).

GE Line Scan Ca... and 7 others render only 5 pixels tall (14 CSS pixels).

GigE Vision Industri and 6 others render only 5 pixels tall (12 CSS pixels).

About Us and 2 others render only 8 pixels tall (20 CSS pixels).

As one high-te…istinguishing. and 6 others render only 5 pixels tall (12 CSS pixels).

Read more » and 1 others render only 5 pixels tall (13 CSS pixels).

Contrastech la…ndustrial lens and 5 others render only 5 pixels tall (12 CSS pixels).

Choosing a Ind…Machine Vis... and 9 others render only 5 pixels tall (12 CSS pixels).
With the large…ion of machine and 9 others render only 5 pixels tall (12 CSS pixels).
Machine Vision Software and 5 others render only 5 pixels tall (14 CSS pixels).

Explorer Serie…ustrial Camera and 16 others render only 5 pixels tall (12 CSS pixels).

market@contrastech.com renders only 5 pixels tall (12 CSS pixels).
浙IC备12002228号 renders only 5 pixels tall (12 CSS pixels).
© Copyright 20…ights reserved renders only 5 pixels tall (12 CSS pixels).
sales01 and 2 others render only 5 pixels tall (12 CSS pixels).

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 - 10Size 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 6,721 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:

The element <a href="/about/?45.html">Contact Us</a> falls outside the viewport.
The element <img src="/upload/2016092849432601.jpg"> falls outside the viewport.
The element <a href="/content/?781.html">CLW-5MP-0.4X-11...</a> falls outside the viewport.
The element <div class="description">Bi-Telecentric Lens</div> falls outside the viewport.
The element <img src="/upload/2016092847278085.png"> falls outside the viewport.
The element <a href="/content/?748.html">CLW-5MP-0.275X-...</a> falls outside the viewport.
The element <div class="description">1&#39;&#39; Bi-Tel</div> falls outside the viewport.
The element <img src="/uploadfile/im…pot_Lights.jpg"> falls outside the viewport.
The element <a href="/content/?807.html">LR Series Low A...</a> falls outside the viewport.
The element <div class="description">Machine Vision Light</div> falls outside the viewport.
The element <img src="/upload/2015030275640617.jpg"> falls outside the viewport.
The element <a href="/content/?550.html">EX1400CPS USB I...</a> falls outside the viewport.
The element <div class="description"></div> falls outside the viewport.

priority - 5Size 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="/about/?45.html">Contact Us</a> is close to 2 other tap targets.

The tap target <a href="/content/?406.html">EXGM360GS E...</a> and 3 others are close to other tap targets.

The tap target <a href="/content/?875.html"></a> and 1 others are close to other tap targets.

The tap target <a href="/content/?904.html" class="product_name">Contact Angle Measurement</a> and 2 others are close to other tap targets.

The tap target <a href="/list/?46_1.html" class="rm">Read more »</a> is close to 1 other tap targets.

The tap target <a href="#sub1" class="active">Industrial Camera</a> and 5 others are close to other tap targets.

The tap target <a href="/list/?106_1.html">Mars Series Industrial Camera</a> and 16 others are close to other tap targets.

The tap target <div id="kfboxclose" class="kfboxclose"></div> is close to 1 other tap targets.

The tap target <a href="skype:contrastech-sales01?call"></a> and 2 others are close to other tap targets.

The tap target <a href="skype:contrastech-sales01?call">sales01</a> and 2 others are close to other tap targets.

The tap target <a href="http://wwww.300400.net/"></a> is close to 1 other tap targets.

contrastech.com HTML validation

Errors

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

Line: 1 Column: 1 - 121
"...<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html..."

Attribute “rel” not allowed on element “li” at this point.

Line: 42 Column: 8 - 27
"... <li rel="" class=""><A tit..." Line: 44 Column: 6 - 25
"...</A> </li><li rel="" class=""><A tit..." Line: 46 Column: 6 - 25
"...</A> </li><li rel="" class=""><A tit..." Line: 48 Column: 6 - 25
"...</A> </li><li rel="" class=""><A tit..." Line: 50 Column: 6 - 25
"...</A> </li><li rel="" class=""><A tit..." Line: 52 Column: 6 - 25
"...</A> </li><li rel="" class=""><A tit..." Line: 54 Column: 6 - 25
"...</A> </li><li rel="" class=""><A tit..."

Attribute “xmlns:aiolia” not allowed here.

Line: 163 Column: 7 - 41
"... <div xmlns:aiolia="" class="clear"></div>..." Line: 166 Column: 7 - 50
"...--> <div xmlns:aiolia="" class="carrousel huge"> ..." Line: 258 Column: 7 - 52
"...iv> <div xmlns:aiolia="#" class="product-advisor"> ..."

Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.

Line: 176 Column: 18 - 66
"... <img src="/images/001.jpg" alt="" width="100%"/> ..." Line: 196 Column: 17 - 64
"... <img src="/images/002.jpg" alt="" width="100%"/> ..." Line: 216 Column: 15 - 65
"... <img src="/images/003.jpg" title="" width="100%"/> ..." Line: 238 Column: 15 - 65
"... <img src="/images/004.jpg" title="" width="100%"/> ..."

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

Line: 216 Column: 15 - 65
"... <img src="/images/003.jpg" title="" width="100%"/> ..." Line: 238 Column: 15 - 65
"... <img src="/images/004.jpg" title="" width="100%"/> ..." Line: 484 Column: 69 - 132
"... Cameras"><img src="/upload/2017041735447921.jpg" style="height:150px"/></a> ..." Line: 495 Column: 71 - 134
"... Cameras"><img src="/upload/2017041735477685.jpg" style="height:150px"/></a> ..." Line: 506 Column: 77 - 140
"... Cameras"><img src="/upload/2017041733321157.jpg" style="height:150px"/></a> ..." Line: 517 Column: 80 - 143
"...for 4..."><img src="/upload/2015062758654733.jpg" style="height:150px"/></a> ..." Line: 528 Column: 80 - 143
"...0D Hi..."><img src="/upload/2016092849432601.jpg" style="height:150px"/></a> ..." Line: 539 Column: 80 - 143
"...200-H..."><img src="/upload/2016092847278085.png" style="height:150px"/></a> ..." Line: 550 Column: 80 - 294
"...ngle ..."><img src="/uploadfile/image/chanpintupian/Lights/LR_Angle_Ring_Lights,Bar_Lights,Flat_Lighting,Bottom_Flat_Lights,Coaxial_Lights,Dome_Lights,Diffused_Ring_Lights,Line_Lights,Spot_Lights.jpg" style="height:150px"/></a> ..." Line: 561 Column: 80 - 143
"...ndust..."><img src="/upload/2015030275640617.jpg" style="height:150px"/></a> ..."

Attribute “sb” not allowed on element “select” at this point.

Line: 318 Column: 15 - 94
"... <select class="quickSearchSeriesSelect" sb="66057458" style="display: none; "> ..." Line: 335 Column: 15 - 115
"... <select class="quickSearchInterfaceSelect" disabled="disabled" sb="67404069" style="display: none; "> ..." Line: 386 Column: 15 - 113
"... <select class="quickSearchCamerasSelect" disabled="disabled" sb="75197883" style="display: none; "> ..."

Attribute value missing.

Line: 735 Column: - 62
"... =''}" value= > ..."

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

Line: 744 Column: 11 - 29
"... <div class="menus"> <ul> ..."

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

Line: 911 Column: 156 - 159
"...an></span></p> <p st..."

Unclosed element “span”.

Line: 908 Column: 11 - 16
"... <span>Tel: 8..." Line: 907 Column: 34 - 39
"...ct_info"> <span> Add.:..."

Warnings

Empty heading.

Line: 37 Column: 9 - 12
"...> <h1></h1> ..."

Attribute with the local name “xmlns:aiolia” is not serializable as XML 1.0.

Line: 163 Column: 7 - 41
"... <div xmlns:aiolia="" class="clear"></div>..." Line: 166 Column: 7 - 50
"...--> <div xmlns:aiolia="" class="carrousel huge"> ..." Line: 258 Column: 7 - 52
"...iv> <div xmlns:aiolia="#" class="product-advisor"> ..."

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

Line: 937 Column: 1 - 121
"...v> </div> <script language="JavaScript" src="http://code.54kefu.net/kefu/js/b170/847370.js" type="text/javascript" charset="utf-8"></scri..."

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

Line: 2 Column: 122 - 6
"...onal.dtd"> <html> <meta..."

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contrastech.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.

contrastech.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.