aqicn.org
In its own wordsBeijing Air Pollution: Real-time Air Quality IndexReal-time air pollution index for 100+ countries
aqicn
aqicn.org is ranked in the top 10,000 sites and was registered in 2013. It is built with AngularJS and jQuery; we found no traces of an AI site builder.
Popularity
Website Traffic CheckerAmong the top 10K sites.
A popularity band, not a visit count.
Top 1KTop 10KTop 100KTop 1MOutside top 1M
Tranco: #11,034 · Chrome UX Report: Top 5,000 · Majestic Million: #16,161
Each list, with its date
| Source | Says | As of |
|---|---|---|
| TrancoA research ranking that combines several traffic and link sources, published daily. | #11,034 | list of 27 Oct 2026 |
| Chrome UX ReportRank buckets from Google’s real Chrome traffic, published monthly. | Top 5,000 | Sep 2026 |
| Majestic MillionRanks sites by how many separate networks link to them (links, not visits), published daily. CC BY 3.0 | #16,161 | list of 28 Oct 2026 |
Technology
Tech Stack CheckerBuilt with AngularJS and jQuery.
AngularJSFrameworkShow evidenceHide evidence
Evidence · page source, line 1Popular sites using AngularJS Is this wrong? Report it1 attributes starting with ng-app
jQueryJavaScript libraryShow evidenceHide evidence
Evidence · page source, line 1Popular sites using jQuery Is this wrong? Report it<script src="https://aqicn.org/air-cache/jquery-3.7.1.min.js?_=20250116.195014">
Everything else it uses (5)
Around it: CDN, Analytics, Advertising, SEO.
CloudflareCDNShow evidenceHide evidence
Evidence · response headerPopular sites using Cloudflare Is this wrong? Report itcf-ray: a51cd9dd1ec1cec5-SJC
Google AnalyticsAnalyticsShow evidenceHide evidence
Evidence · page source, line 1Popular sites using Google Analytics Is this wrong? Report it…)(window,document,'script','https://www.google-analytics.com/analytics.js','ga');ga('create', 'UA-28507883-1', 'a…Facebook SDKAdvertisingShow evidenceHide evidence
Evidence · page source, line 1Popular sites using Facebook SDK Is this wrong? Report it…ountry!='CN') {loadScriptAsync("https://connect.facebook.net/en_US/sdk.js#xfbml=1&version=v5.0&appId=643196515742…Google AdSenseAdvertisingShow evidenceHide evidence
Evidence · page source, line 1Popular sites using Google AdSense Is this wrong? Report it<script async="" src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js">
Google Search ConsoleSEOShow evidenceHide evidence
Evidence · DNS recordPopular sites using Google Search Console Is this wrong? Report itaqicn.org TXT google-site-verification=lcGdgWeIGmYIjy4wgGLUXlDNkKAZvWYDEK1XaI53Qzc\010
Trust signals
Website Trust Checker1 of 7 trust signals found on the home page.
Signals, not a judgement: missing details are common on small, honest sites.
- Domain registered10 Mar 2013, 13 years agoNoted
- HTTPSLoads over HTTPS with a valid certificateFound
- Contact detailsNo email or phone on the home pageNot found
- Privacy policyNo link found on the home pageNot found
- TermsNo link found on the home pageNot found
- Security filterNot blocked by Cloudflare’s security filter and Quad9’s security filterNoted
Every signal we looked at
On the site
- Contact pageLinked from the home page, and the page opensFound
- About pageNo link found on the home pageNot found
- Privacy policyNo link found on the home pageNot found
- TermsNo link found on the home pageNot found
- Refund or returns policyNo link found on the home pageNot found
- Contact detailsNo email or phone on the home pageNot found
- Company detailsNo company name or address foundNot found
- Payment providersNone on the home pageNoted
- Trackers3 analytics and advertising tools: Google Analytics, Facebook SDK, Google AdSenseNoted
Behind the site
- Security filterNot blocked by Cloudflare’s security filter and Quad9’s security filterNotedCloudflare’s security filter and Quad9’s security filter
- Domain registered10 Mar 2013, 13 years agoNoteddomain registry
- HTTPSLoads over HTTPS with a valid certificateFound
- Protective settings1 of 6 in placePartly
- Email protectionPartly protected against forged emailPartlyDNS records
A second opinion on its security setup: Mozilla’s HTTP Observatory grades the site when you open it. Ten checks before you buy · A signal looks wrong? Report it
What it is
Website SummaryIt calls itself “Beijing Air Pollution: Real-time Air Quality Index”.
In its own wordsBeijing Air Pollution: Real-time Air Quality IndexReal-time air pollution index for 100+ countries
The page doesn’t show enough to say what kind of site it is (a shop, a blog, an app…).
More about it: Wikidata, profiles, AI use, page facts
AI use
- AI training: doesn’t ask AI training crawlers to stay away.
- AI assistants: may read it for the people who ask them.
What its robots.txt and robots tags ask of AI crawlers. Each crawler chooses whether to follow it.
- Site name
- aqicn.org
- Language
- English (en)
- What it tells search engines
- None
Read from what the page says about itself; we haven’t checked whether it’s true.
Built with AI?
AI Website DetectorNo AI builder traces found.
Coding tools such as Cursor leave no traces, so this doesn’t mean a person made it.
AI traces: None found
How we know
AI site builders leave traces in the sites they make. We look for the traces of 53 of them and show every match with the line it came from, so you can check it yourself.
We test this on 2,312 sites whose makers we know, and publish what we get wrong.
How we test it · Every builder we know · How to tell if a site was built with AI
Score breakdown
Site Score77 of 100: strong trust signals.
How established and checkable it is; AI traces carry no weight.
TransparencyContact, policies and about page12 / 30
Track recordHow long the domain has existed25 / 25
PopularityIts place in public rankings20 / 20
Security and setupHTTPS and standard protections13 / 15
ConsistencyName, description and what it tells search engines7 / 10
Why each part scored what it did
TransparencyContact, policies and about page12 / 30contact page linked · email and phone not both given · no privacy policy link · no terms link · no payments seen, so no refund policy needed · no about page link
Track recordHow long the domain has existed25 / 25domain registered 13 years ago
PopularityIts place in public rankings20 / 20Top 10K in a popularity list
Security and setupHTTPS and standard protections13 / 15loads over HTTPS · sends visitors to HTTPS · always uses HTTPS · no protective settings
ConsistencyName, description and what it tells search engines7 / 10site name matches the domain · describes itself · doesn’t tell search engines what it is
A high score isn’t a promise that a business is honest. How the score works.
Domain history
Domain HistoryRegistered in 2013.
- Domain registeredRDAP
- First certificate issuedCertificate Transparency
- This scanCheckAnySite
The web archive couldn’t be reached; we’ll ask it again. Why can this be empty?
Changes, earlier scans and alerts
- Since our previous scan
- This is our first scan of the site.
How we scanned it
Only from what anyone can see: the site’s public pages and public records.
- Politely. Our scanner, CheckAnySiteBot, says who it is and follows the site’s robots.txt.
- With sources. Every fact above says where it came from and when.
- Without guessing. When we couldn’t check something, we say so.
This scan, in numbers
926 checks on 28 Oct 2026, with version 0.5.0 of our checks and version 1.1 of the score.
Questions about aqicn.org
What is aqicn.org?
aqicn.org describes itself: “Real-time air pollution index for 100+ countries” See the evidence
How old is aqicn.org?
Its domain was registered on 10 Mar 2013, 13 years ago. See the evidence
What is aqicn.org built with?
It is built with AngularJS and jQuery; we found 7 technologies in all. See the evidence
How popular is aqicn.org?
It is among the top 10,000 sites, by Tranco, Chrome UX Report and Majestic Million. See the evidence
Was aqicn.org made with AI?
We found no traces of an AI site builder. That doesn’t prove a person built it: AI coding assistants leave no traces. See the evidence
More sites near it in popularity
Automated findings from the site’s public home page and public records, as of 28 Oct 2026. They describe what we found, not the people or business behind the site, and they may be incomplete or out of date. This is information, not advice. Terms · Report an error
What this scan can’t tell you
- Whether the business is real, honest or delivers what it sells.
- Whether a site was made with AI when no traces were left: coding assistants and hand edits leave none.
- How many people visit: we show popularity bands from public lists, not visits.
- Anything beyond the home page as it was at the time of the scan.
Is this your site? Ask for a correction.