aqicn.org
🖥 Status: up
🕒 Response Time: 2.152 sec
⬅️ Response Code: 200
In the timespan of 667 days beginning February 29, 2024, data shows aqicn.org passed 99 accessibility tests. Aqicn.org was reachable 99 times overall, according to the tests, with the most recent uptime occurring on December 27, 2025, receiving a code 200. None of the tests conducted as of December 27, 2025, found any instances of aqicn.org being unavailable. The status of every response received has been confirmed error-free as of December 27, 2025. Averaging 2.527 seconds, aqicn.org responded in 2.152 seconds on the recorded date of December 27, 2025.
99
Last Updated: December 27, 2025
| United States | 100.00% | ||||||||
| 01:02 | |||||||||
Similar Domains
Different Extensions
Search Results
| Site | Total Checks | Last Modified |
|---|---|---|
| 20 | May 15, 2021 | |
| 14 | August 23, 2021 | |
| 99 | February 29, 2024 | |
| 16 | January 15, 2021 | |
| 27 | November 19, 2024 |
Beautynama.com | Aqicn.org | ||||
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| Page Title | An effective website title tag strategy directly impacts your site's search visibility, organic traffic, and conversion rates; ensure each page has a unique, descriptive title containing core keywords, stays under 60 characters, accurately reflects its content, and is written from the user's perspective to answer their specific search query effectively. |
|---|---|
| Beijing Air Pollution: Real-time Air Quality Index Length: 50 characters | |
| Meta Description | For local SEO, craft specific meta descriptions mentioning your service areas or geographic locations to appeal to users searching for those particular services or information within your region. |
| Real-time air pollution index for 100+ countries Length: 48 characters | |
| Meta Keywords | Keyword research focusing on semantic variations and long-tailed phrases integrated naturally throughout your content remains far more effective than keyword stuffing in outdated meta tags. |
| 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, Air quality historical data, Air Quality Rankings, Beijing AQI Windows widget, Beijing AQI android widget, PM10 respirable particulate matter, PM2.5 fine particulate matter, NO2 nitrogen dioxide, SO2 sulfur dioxide, CO carbon monoxide, O3 ozone,... Count: 66 words | |
| Page Content | Conduct meticulous keyword research to identify semantic related terms and featured snippets, then structure your page content to directly address these in a clear, concise manner. |
| Web Page Content Length: 76517 characters | |
| H1 Heading | Selecting the most appropriate and descriptive H1 tag for each page is an essential step in on-page SEO, contributing directly to improved rankings and more targeted web traffic. |
| Beijing Air Pollution: Real-time Air Quality Index (AQI) Looking for another city? Do you know of any Air Quality stations in your area? why not participate to the map with your own air quality station? Air quality historical data Air Quality Rankings Download the real-time Air Quality Index Widget for: Looking for more air quality related products? About the Air Quality and Pollution Measurement: Count: 8 heading tag | |
| H2 Headings | When writing effective H2 content, focus on creating concise, descriptive, and action-oriented headings that clearly communicate the section's main topic while incorporating relevant keywords for better search visibility. |
| Settings Count: 1 heading tag | |
| H3 Headings | Strategically place H3 subheadings within each H2 section to create a clear, hierarchical content outline, guiding readers through your detailed information effectively. |
| About This Project air quality research Frequently Asked Questions Credits Count: 4 heading tag | |
| H4 Headings | In content-rich blog posts or informational pages, H4 tags can effectively divide sections, making it easier for readers to digest complex information and follow the argument or explanation presented. |
| no h4 headings data for aqicn.org 2025-12-27T15:08:23+00:00 | |
| H5-H6 Headings | For optimal readability and SEO, use H4 headers primarily, reserving H5 and H6 strictly for the deepest level of sub-detail within complex guides or technical manuals |
| no h5-h6 headings data for aqicn.org 2025-12-27T15:08:23+00:00 | |
| Image ALT Attributes | Using generic terms like "image" or "picture" as ALT text provides zero value to screen reader users or search engines; instead, specifically describe the content and context, e.g., "Red laptop used in the remote work example section." |
| https://waqi.info/icons/logo.png?_=1764004468 Count: 1 images with ALT attributes | |
| Robots.txt | Regularly audit your robots.txt file to ensure its rules remain effective and accurate, particularly after website redesigns or updates to your content strategy, to prevent outdated directives from harming SEO performance. |
| file robots.txt was found on the website | |
| XML Sitemap | Consider the frequency and recency of your content when populating your XML sitemap; regularly adding new URLs ensures search engines focus their resources on your latest valuable content, improving its chances of ranking well. |
| no xml sitemap data for aqicn.org 2025-12-27T15:08:23+00:00 | |
| Page Size | Smaller page sizes contribute significantly to improved user engagement metrics, including lower exit rates and longer time-on-site for your content pages. |
| page size: 75 kb | |
| Response Time | Ensure that your server is geographically close to your target audience or use a CDN to serve content from edge locations; this reduces network latency, contributing significantly to faster initial connection and overall response time for users worldwide. |
| response time: 2.527 sec | |
| Minify CSS | Minifying CSS files, by default removing all indentation, line breaks, and comments, is a simple yet highly effective method for reducing the total bytes transferred, thus speeding up your site's loading process compared to non-minified CSS, and positively influencing Core Web Vitals scores. |
| Minified: https://aqicn.org/css/style.min.css?_=1750219559 https://aqicn.org/air-cache/city/style.min.css?_=20190418.093127 https://aqicn.org/air-cache/generic/scripts/dist/navmenu.css?_=20250118.191236 Unminified: /air/view/images/isprites/map-flags/2016-08-27/ispritflags.css?_=20190418.093129&type=css included in the page | |
| Minify JavaScript | The practice of minifying JavaScript code is essential for modern web performance; it directly contributes to faster page loading speeds, better Core Web Vitals scores, and ultimately, improved visibility in search engine results. |
| Minified: https://aqicn.org/air-cache/header/bundle.min.js?_=20250121.173557 https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js https://aqicn.org/air-cache/city/dist/share.js?_=20240815.151438 /webapp/dist/mailing-dyn.b37d52498ecc6e0dde16.js?_=1737642178 https://aqicn.org/air-cache/generic/scripts/dist/navmenu.js?_=20250704.152335 https://aqicn.org/air-cache/jquery-3.7.1.min.js?_=20250116.195014 /jscripts/moment/bundle.min.js?_=20200103.150752&type=script https://aqicn.org/air-cache/tingle/0.15.1/tingle.min.js?_=20191109.130307 detected during site scan | |
| Structured Data | Invest time in creating and validating your Schema Markup using Google's Structured Data Testing Tool to ensure accuracy and error-free implementation, as incorrect or improperly formatted structured data offers no benefit and can occasionally hinder crawling. |
| no structured data data for aqicn.org 2025-12-27T15:08:23+00:00 | |
| CDN Usage | A well-configured Content Delivery Network significantly reduces Time To First Byte (TTFB) and other Core Web Vitals metrics by caching content at edge locations near the requesting user's location. |
| no cdn usage data for aqicn.org 2025-12-27T15:08:23+00:00 | |
| SSL certificates | SSL certificates digitally sign your website's public key, ensuring that only the intended recipient can decrypt the encrypted data; this cryptographic handshake, managed automatically by browsers, is the fundamental mechanism that guarantees data confidentiality and prevents man-in-the-middle attacks. |
| SSL is enabled on the website |