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 * Reports
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   * State of the Web
   * State of JavaScript
   * State of Images
   * Loading Speed
   * Progressive Web Apps
   * Accessibility
   * SEO
   * Page Weight
   * CrUX
   * Capabilities
   * Core Web Vitals Technology Report
 * Discuss
 * Web Almanac
   * 2021
   * 2020
   * 2019
 * About
   * Mission
   * Contribute
   * Contact
   * FAQ

 * Reports
   * All Reports
   * State of the Web
   * State of JavaScript
   * State of Images
   * Loading Speed
   * Progressive Web Apps
   * Accessibility
   * SEO
   * Page Weight
   * CrUX
   * Capabilities
   * Core Web Vitals Technology Report
 * Discuss
 * Web Almanac
   * 2021
   * 2020
   * 2019
 * About
   * Mission
   * Contribute
   * Contact
   * FAQ


THE HTTP ARCHIVE TRACKS HOW THE WEB IS BUILT.

We periodically crawl the top sites on the web and record detailed information
about fetched resources, used web platform APIs and features, and execution
traces of each page. We then crunch and analyze this data to identify trends —
learn more about our methodology.

View Reports


WEB ALMANAC 2021 STATE OF THE WEB REPORT

The Web Almanac combines the raw stats and trends of the HTTP Archive with the
expertise of the web community. The 2021 edition is a comprehensive report on
the state of the web, backed by real data and trusted web experts, and comprised
of 20+ chapters spanning aspects of page content, user experience, publishing,
and distribution.

Read The 2021 Web Almanac



PUBLIC DATASET GOOGLE BIGQUERY

The HTTP Archive archives and provides access to detailed information about each
website it crawls: request and response metadata, response bodies, execution
traces, and more. You can download this data for offline analysis, or access it
as a public dataset via Google BigQuery for fast and rapid analysis.

Learn More about using BigQuery



RECENT BLOG POSTS

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Introducing the Core Web Vitals Technology Report
Rick Viscomi・Jun 24 '21
#webdev#corewebvitals#httparchive#webtransparency
10 0
What can the HTTP Archive tell us about Largest Contentful Paint?
Paul Calvano・Jun 8 '21
#webperf#webdev
8 0
Correlation between Core Web Vitals and web characteristics
Sixing Chen・Jan 12 '21
#performance#webperf#webdev#httparchive
21 6

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FEATURED DISCUSSIONS

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Picture element display values
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The environmental impact and resilliency of the web
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The Performance Impact of Cryptocurrency Mining on the Web
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CMS Performance
23
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Planning the Web Almanac 2019
16

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