2019

Web Almanac

HTTP Archive’s annual
state of the web report

Our mission is to combine the raw stats and trends of the HTTP Archive with the expertise of the web community. The Web Almanac is a comprehensive report on the state of the web, backed by real data and trusted web experts. The 2019 edition is comprised of 20 chapters spanning aspects of page content, user experience, publishing, and distribution.

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Featured Chapter

PWA

Progressive Web Apps (PWAs) are a new class of web applications, building on top of platform primitives like the Service Worker APIs. Service workers allow apps to support network-independent loading by acting as a network proxy, intercepting your web app’s outgoing requests, and replying with programmatic or cached responses.

0.44%

Sites that register a service worker

15%

Pageviews that use a Service Worker

57%

PWAs that use the standalone display property

Read the PWA chapter

Contributors

The Web Almanac has been made possible by the hard work of the web community. 103 people have volunteered countless hours in the planning, research, writing and production phases of the 2019 Web Almanac.

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Methodology

Websites Tested

5.8M

Data Processed

20.9 TB

Unless otherwise noted, the metrics in all of the 20 chapters of the 2019 Web Almanac are sourced from the HTTP Archive dataset. HTTP Archive is a community-run project that has been tracking how the web is built since 2010. Using WebPageTest and Lighthouse under the hood, metadata about nearly 6 million websites are tested monthly and included in a public BigQuery database for analysis. The July 2019 dataset was used as the basis for the 2019 Web Almanac’s metrics. For more information, see the Methodology page.

Learn about our Methodology