AQICN.ORG Beijing Air Pollution: Real-time Air Quality Index

aqicn.org Website Information

Daily Unique Visits: 88,331

Daily Page Views: 529,986

Income Per Day: $1,060

Estimated Value: $763,200

This website is located in Hong Kong and is using following IP address 172.105.192.79. See the complete list of popular websites hosted in Hong Kong.

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

Website aqicn.org is using the following name servers:

  • ns4.linode.com
  • ns3.linode.com
  • ns1.linode.com
  • ns2.linode.com
  • ns5.linode.com

and is probably hosted by LINODE-AP Linode, LLC, US. See the full list of other websites hosted by LINODE-AP Linode, LLC, US.

The highest website aqicn.org position in Alexa rank database was 15451 and the lowest rank position was 16777. Current position of aqicn.org in Alexa rank database is 16237.

Desktop speed score of aqicn.org (71/100) is better than the results of 52.66% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of aqicn.org (96/100) is better than the results of 46.59% of other sites and means that the page is mobile-friendly.

Mobile speed score of aqicn.org (56/100) is better than the results of 45.93% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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aqicn.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.


aqicn.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: aqicn.org
Registry Domain ID: de6715a483da454a8e3cde415f01ae88-LROR
Registrar WHOIS Server: whois.tucows.com
Registrar URL: http://www.tucows.com
Updated Date: 2024-02-28T09:53:52Z
Creation Date: 2013-03-10T02:17:32Z
Registry Expiry Date: 2025-03-10T02:17:32Z
Registrar: Tucows Domains Inc.
Registrar IANA ID: 69
Registrar Abuse Contact Email: domainabuse@tucows.com
Registrar Abuse Contact Phone: +1.4165350123
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: Contact Privacy Inc. Customer 0147438479
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: ON
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: CA
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: ns1.linode.com
Name Server: ns2.linode.com
Name Server: ns3.linode.com
Name Server: ns5.linode.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-09-10T22:55:39Z

aqicn.org server information

Servers Location

aqicn.org desktop page speed rank

Last tested: 2016-08-24


Desktop Speed Medium
71/100

aqicn.org Desktop Speed Test Quick Summary


priority - 14Leverage 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 - 14Optimize images

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priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 5 blocking script resources and 11 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

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Use asynchronous versions of the following scripts:

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Optimize CSS Delivery of the following:

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http://aqicn.org/air/view/city/style.min.css?_=1444620528
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priority - 4Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 14% of the final above-the-fold content could be rendered with the full HTML response.

priority - 0Minify CSS

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Minify CSS for the following resources to reduce their size by 2.5KiB (23% reduction).

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aqicn.org Desktop Resource Breakdown

Total Resources183
Number of Hosts31
Static Resources127
JavaScript Resources66
CSS Resources11

aqicn.org mobile page speed rank

Last tested: 2019-12-09


Mobile Speed Bad
56/100

aqicn.org Mobile Speed Test Quick Summary


priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 5 blocking script resources and 11 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

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Optimize CSS Delivery of the following:

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priority - 21Leverage 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://aqicn.org/air/images/mobile-browser-icon2.png (expiration not specified)
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priority - 16Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 49% of the final above-the-fold content could be rendered with the full HTML response.
Click to see the screenshot with only the HTML response:

priority - 5Optimize images

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

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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 671B (39% reduction).

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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 326B (24% reduction).

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aqicn.org Mobile Resource Breakdown

Total Resources168
Number of Hosts46
Static Resources71
JavaScript Resources50
CSS Resources6

aqicn.org mobile page usability

Last tested: 2019-12-09


Mobile Usability Good
96/100

aqicn.org Mobile Usability Test Quick Summary


priority - 3Size 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://aqicn.o…ty/beijing/cn/"></a> is close to 2 other tap targets.

The tap target <a href="http://aqicn.o…ty/beijing/jp/"></a> is close to 2 other tap targets.

The tap target <a href="http://aqicn.o…ty/beijing/es/"></a> is close to 2 other tap targets.

The tap target <a href="http://aqicn.o…ty/beijing/kr/"></a> is close to 2 other tap targets.

The tap target <a href="http://aqicn.o…ty/beijing/ru/"></a> is close to 2 other tap targets.

The tap target <a href="http://aqicn.o…ty/beijing/hk/"></a> is close to 2 other tap targets.

The tap target <a href="http://aqicn.o…ty/beijing/fr/"></a> is close to 2 other tap targets.

The tap target <a href="http://aqicn.o…ty/beijing/pl/"></a> is close to 2 other tap targets.

The tap target <a href="http://aqicn.o…ty/beijing/de/"></a> is close to 2 other tap targets.

The tap target <a href="http://aqicn.o…ty/beijing/pt/"></a> is close to 2 other tap targets.

The tap target <a href="http://aqicn.o…ty/beijing/vn/"></a> is close to 1 other tap targets.

The tap target <a href="http://aqicn.org/city/beijing/">http://aqicn.org/city/beijing/</a> is close to 2 other tap targets.
The tap target <a href="https://google…treatment.html" class="ns-c741x-e-12">daviswaterconditioning.com</a> is close to 1 other tap targets.
The tap target <div class="ns-sgvcs-e-7 store-name">River View Apartment Homes</div> is close to 1 other tap targets.
The tap target <div id="abgc" class="abgc"></div> is close to 1 other tap targets.
The tap target <div id="abgc" class="abgc"></div> is close to 1 other tap targets.
The tap target <a href="/contact/">Contact The Wo…x Project Team</a> and 10 others are close to other tap targets.
The tap target <a href="http://wxqa.com/">Citizen Weathe…am (CWOP/APRS)</a> and 23 others are close to other tap targets.
The tap target <input type="submit"> is close to 1 other tap targets.

aqicn.org 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 “ng-app” not allowed on element “html” at this point.

Line: 1 Column: 122 - 232
"...onal.dtd"><html xmlns="http://www.w3.org/1999/xhtml" itemscope itemtype="http://schema.org/LocalBusiness" ng-app="waqi"><head>..."

Bad value “vn” for attribute “hreflang” on element “link”: The language subtag “vn” is not a valid ISO language part of a language tag.

Line: 1 Column: 1828 - 1905
"...ing/pt/'/><link rel='alternate' hreflang='vn' href='http://aqicn.org/city/beijing/vn/'/><meta ..."

Attribute “name” not allowed on element “meta” at this point.

Line: 1 Column: 1906 - 2058
"...ing/vn/'/><meta itemprop="description" name="Description" content="Real-time Air Quality Index for more than 60 countries in the world" http-equiv="Description" /><meta ..."

Attribute “http-equiv” not allowed on element “meta” at this point.

Line: 1 Column: 1906 - 2058
"...ing/vn/'/><meta itemprop="description" name="Description" content="Real-time Air Quality Index for more than 60 countries in the world" http-equiv="Description" /><meta ..." Line: 1 Column: 2059 - 2654
"...iption" /><meta name="Keywords" http-equiv="Keywords" content="Beijing PM2.5, Beijing AQI, Beijing Air Quality Index, Beijing Air Pollution Index, Beijing Air Pollution, Air Quality Index, Air Quality, Air Pollution, Pollution, China Air Pollution, Asia Air Pollution, World Air Pollution, Beijing AQI Windows vista widget, Beijing AQI Windows 7 widget, Beijing AQI igoogle widget, Beijing AQI android widget, Beijing AQI symbian widget, beijingair twitter feed, PM10 respirable particulate matter, PM2.5 fine particulate matter, NO2 nitrogen dioxide, SO2 sulfur dioxide, CO carbon monoxide, O3 ozone, " /><meta ..."

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

Line: 1 Column: 4706 - 4728
"...ex:1001;'><style type="text/css">.ntf-h..." Line: 1 Column: 8084 - 8106
"...</a></div><style type="text/css">/* glu..." Line: 1 Column: 22497 - 22519
"...div></div><style type="text/css">/* SEA..."

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

Line: 1 Column: 6192 - 6199
"...y:none;' ><center><div c..." Line: 1 Column: 6237 - 6264
"...d-inner' ><center id='notify-content'></cent..." Line: 1 Column: 28540 - 28547
"...-menubar'><center><table..." Line: 1 Column: 28658 - 28665
"...bar-text'><center><div c..."

Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&amp;”.)

Line: 1 Column: - 20791
"...xt">Share:&nbsp</span><a class..."

No space between attributes.

Line: 1 Column: - 21560
"...layout="button"addthis:url="ht..." Line: 1 Column: - 21800
"... 60 countries."addthis:url="ht..." Line: 1 Column: - 21922
"...in-right:10px;'addthis:title="..." Line: 1 Column: - 22039
"... 60 countries."addthis:url="ht..." Line: 1 Column: - 22169
"...in-right:10px;'g:plusone:size=..." Line: 1 Column: - 22310
"... 60 countries."addthis:url="ht..." Line: 1 Column: - 22396
"...his_pill_style"addthis:title="..."

Bad value “_fbs” for attribute “target” on element “a”: Reserved keyword “fbs” used.

Line: 1 Column: 21483 - 21596
"...t_style" ><a target=_fbs class="addthis_button_facebook_share" fb:share:layout="button"addthis:url="http://aqicn.org/here/"></a> <..."

Attribute “fb:share:layout” not allowed on element “a” at this point.

Line: 1 Column: 21483 - 21596
"...t_style" ><a target=_fbs class="addthis_button_facebook_share" fb:share:layout="button"addthis:url="http://aqicn.org/here/"></a> <..."

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

Line: 1 Column: 21483 - 21596
"...t_style" ><a target=_fbs class="addthis_button_facebook_share" fb:share:layout="button"addthis:url="http://aqicn.org/here/"></a> <..." Line: 1 Column: 21602 - 21836
"...re/"></a> <a target=_fb class="addthis_button_facebook_like" fb:like:layout="button_count" addthis:title="How polluted is the air today? Check out the real-time air pollution map, for more than 60 countries."addthis:url="http://aqicn.org/here/"></a> <..." Line: 1 Column: 21842 - 22075
"...re/"></a> <a target=_tw class="addthis_button_tweet" style='float:left;margin-right:10px;'addthis:title="How polluted is the air today? Check out the real-time air pollution map, for more than 60 countries."addthis:url="http://aqicn.org/here/"></a><a..." Line: 1 Column: 22080 - 22346
"...ere/"></a><a target=_gp class="addthis_button_google_plusone" style='float:left;margin-right:10px;'g:plusone:size="medium" addthis:title="How polluted is the air today? Check out the real-time air pollution map, for more than 60 countries."addthis:url="http://aqicn.org/here/"></a><a..."

Bad value “_fb” for attribute “target” on element “a”: Reserved keyword “fb” used.

Line: 1 Column: 21602 - 21836
"...re/"></a> <a target=_fb class="addthis_button_facebook_like" fb:like:layout="button_count" addthis:title="How polluted is the air today? Check out the real-time air pollution map, for more than 60 countries."addthis:url="http://aqicn.org/here/"></a> <..."

Attribute “fb:like:layout” not allowed on element “a” at this point.

Line: 1 Column: 21602 - 21836
"...re/"></a> <a target=_fb class="addthis_button_facebook_like" fb:like:layout="button_count" addthis:title="How polluted is the air today? Check out the real-time air pollution map, for more than 60 countries."addthis:url="http://aqicn.org/here/"></a> <..."

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

Line: 1 Column: 21602 - 21836
"...re/"></a> <a target=_fb class="addthis_button_facebook_like" fb:like:layout="button_count" addthis:title="How polluted is the air today? Check out the real-time air pollution map, for more than 60 countries."addthis:url="http://aqicn.org/here/"></a> <..." Line: 1 Column: 21842 - 22075
"...re/"></a> <a target=_tw class="addthis_button_tweet" style='float:left;margin-right:10px;'addthis:title="How polluted is the air today? Check out the real-time air pollution map, for more than 60 countries."addthis:url="http://aqicn.org/here/"></a><a..." Line: 1 Column: 22080 - 22346
"...ere/"></a><a target=_gp class="addthis_button_google_plusone" style='float:left;margin-right:10px;'g:plusone:size="medium" addthis:title="How polluted is the air today? Check out the real-time air pollution map, for more than 60 countries."addthis:url="http://aqicn.org/here/"></a><a..." Line: 1 Column: 22351 - 22474
"...ere/"></a><a class="addthis_counter addthis_pill_style"addthis:title="Beijing Air Pollution: Real-time PM2.5 Air Quality Index (AQI)"></a></..."

Bad value “_tw” for attribute “target” on element “a”: Reserved keyword “tw” used.

Line: 1 Column: 21842 - 22075
"...re/"></a> <a target=_tw class="addthis_button_tweet" style='float:left;margin-right:10px;'addthis:title="How polluted is the air today? Check out the real-time air pollution map, for more than 60 countries."addthis:url="http://aqicn.org/here/"></a><a..."

Bad value “_gp” for attribute “target” on element “a”: Reserved keyword “gp” used.

Line: 1 Column: 22080 - 22346
"...ere/"></a><a target=_gp class="addthis_button_google_plusone" style='float:left;margin-right:10px;'g:plusone:size="medium" addthis:title="How polluted is the air today? Check out the real-time air pollution map, for more than 60 countries."addthis:url="http://aqicn.org/here/"></a><a..."

Attribute “g:plusone:size” not allowed on element “a” at this point.

Line: 1 Column: 22080 - 22346
"...ere/"></a><a target=_gp class="addthis_button_google_plusone" style='float:left;margin-right:10px;'g:plusone:size="medium" addthis:title="How polluted is the air today? Check out the real-time air pollution map, for more than 60 countries."addthis:url="http://aqicn.org/here/"></a><a..."

Stray end tag “b”.

Line: 1 Column: 25653 - 25656
"...e"></span></b></div>..."

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

Line: 1 Column: 25853 - 25875
"...nu'></div><style type="text/css">.fixed..."

Attribute “ontouchend” not allowed on element “div” at this point.

Line: 1 Column: 28666 - 28753
"...'><center><div class='menubar-button' ontouchend='this.style.backgroundColor="rgb(127,194,227)";'><div c..."

End tag “a” violates nesting rules.

Line: 1 Column: 28877 - 28880
"...pan></div></a></td><..."

Cannot recover after last error. Any further errors will be ignored.

Line: 1 Column: 28877 - 28880
"...pan></div></a></td><..."

Warnings

Attribute “fb:share:layout” is not serializable as XML 1.0.

Line: 1 Column: 21483 - 21596
"...t_style" ><a target=_fbs class="addthis_button_facebook_share" fb:share:layout="button"addthis:url="http://aqicn.org/here/"></a> <..."

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

Line: 1 Column: 21483 - 21596
"...t_style" ><a target=_fbs class="addthis_button_facebook_share" fb:share:layout="button"addthis:url="http://aqicn.org/here/"></a> <..." Line: 1 Column: 21602 - 21836
"...re/"></a> <a target=_fb class="addthis_button_facebook_like" fb:like:layout="button_count" addthis:title="How polluted is the air today? Check out the real-time air pollution map, for more than 60 countries."addthis:url="http://aqicn.org/here/"></a> <..." Line: 1 Column: 21842 - 22075
"...re/"></a> <a target=_tw class="addthis_button_tweet" style='float:left;margin-right:10px;'addthis:title="How polluted is the air today? Check out the real-time air pollution map, for more than 60 countries."addthis:url="http://aqicn.org/here/"></a><a..." Line: 1 Column: 22080 - 22346
"...ere/"></a><a target=_gp class="addthis_button_google_plusone" style='float:left;margin-right:10px;'g:plusone:size="medium" addthis:title="How polluted is the air today? Check out the real-time air pollution map, for more than 60 countries."addthis:url="http://aqicn.org/here/"></a><a..."

Attribute “fb:like:layout” is not serializable as XML 1.0.

Line: 1 Column: 21602 - 21836
"...re/"></a> <a target=_fb class="addthis_button_facebook_like" fb:like:layout="button_count" addthis:title="How polluted is the air today? Check out the real-time air pollution map, for more than 60 countries."addthis:url="http://aqicn.org/here/"></a> <..."

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

Line: 1 Column: 21602 - 21836
"...re/"></a> <a target=_fb class="addthis_button_facebook_like" fb:like:layout="button_count" addthis:title="How polluted is the air today? Check out the real-time air pollution map, for more than 60 countries."addthis:url="http://aqicn.org/here/"></a> <..." Line: 1 Column: 21842 - 22075
"...re/"></a> <a target=_tw class="addthis_button_tweet" style='float:left;margin-right:10px;'addthis:title="How polluted is the air today? Check out the real-time air pollution map, for more than 60 countries."addthis:url="http://aqicn.org/here/"></a><a..." Line: 1 Column: 22080 - 22346
"...ere/"></a><a target=_gp class="addthis_button_google_plusone" style='float:left;margin-right:10px;'g:plusone:size="medium" addthis:title="How polluted is the air today? Check out the real-time air pollution map, for more than 60 countries."addthis:url="http://aqicn.org/here/"></a><a..." Line: 1 Column: 22351 - 22474
"...ere/"></a><a class="addthis_counter addthis_pill_style"addthis:title="Beijing Air Pollution: Real-time PM2.5 Air Quality Index (AQI)"></a></..."

Attribute “g:plusone:size” is not serializable as XML 1.0.

Line: 1 Column: 22080 - 22346
"...ere/"></a><a target=_gp class="addthis_button_google_plusone" style='float:left;margin-right:10px;'g:plusone:size="medium" addthis:title="How polluted is the air today? Check out the real-time air pollution map, for more than 60 countries."addthis:url="http://aqicn.org/here/"></a><a..."

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

Line: 1 Column: - 25618
"...ate"></span> -- <b>--><span id..."

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aqicn.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.


aqicn.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.