Common Crawl Foundation

WMDQS is underway! Come join us in Room 520A at @colmweb.org! #COLM2025

Looking forward to tomorrow's #COLM2025 workshop on multilingual data quality! 🤩

In collaboration with @commoncrawl.bsky.social, MLCommons, and @eleutherai.bsky.social, the first edition of WMDQS at @colmweb.org starts tomorrow in Room 520A! We have an updated schedule on our website, including a list of all accepted papers.

Common Crawl - Blog - Announcing GneissWeb Annotations Common Crawl has added IBM’s GneissWeb quality and category annotations to its web dataset, enabling users to filter high-quality content and explore topics like medical, education, and technology.

Common Crawl has added IBM’s GneissWeb quality and category annotations to its web dataset, enabling users to filter high-quality content and explore topics like medical, education, and technology.

commoncrawl.org/blog/announc...

Common Crawl - Blog - Web Languages Needing Review by Native Speakers Common Crawl’s Web Languages initiative has had many contributions since its introduction. We’re calling for native speakers of certain languages to review language contributions, to ensure that links...

Common Crawl’s Web Languages initiative has had many contributions since its introduction. We’re calling for native speakers of certain languages to review language contributions, to ensure that links we’re adding to our seed crawl are of good quality.

commoncrawl.org/blog/web-lan...

Common Crawl - Blog - Host- and Domain-Level Web Graphs July, August, and September 2025 We are pleased to announce a new release of host-level and domain-level web graphs based on the crawls of July, August, and September 2025. The host-level graph consists of 628.7 million nodes and 6.9...

We are pleased to announce a new release of host-level and domain-level web graphs based on the crawls of July, August, and September 2025. The host-level graph consists of 628.7 million nodes and 6.9 billion edges, and the domain-level graph consists of 184.6 million nodes and 5.4 billion edges.

Common Crawl - Blog - From SEO to AIO: Why Your Content Needs to Exist in AI Training Data The era of traditional search engine optimization is rapidly evolving into

The era of traditional search engine optimization is rapidly evolving into "AIO" (AI optimization), where businesses must ensure their content exists in AI training datasets to remain discoverable as users increasingly turn to AI assistants for answers.

commoncrawl.org/blog/from-se...

Common Crawl - Blog - September 2025 Crawl Archive Now Available We are pleased to announce the release of our September 2025 crawl, containing 2.39 billion web pages, or 421 TiB of uncompressed content.

We are pleased to announce the release of our September 2025 crawl, containing 2.39 billion web pages, or 421 TiB of uncompressed content.

www.commoncrawl.org/blog/septemb...

Common Crawl - Blog - Common Crawl Foundation Opt-Out Registry Publishers have been sending Common Crawl legal opt-out requests. In the interest of transparency and to better serve our ecosystem, we are publishing the full opt-out list for every legal request we ...

Publishers have been sending Common Crawl legal opt-out requests. In the interest of transparency and to better serve our ecosystem, we are publishing the full opt-out list for every legal request we have received.

commoncrawl.org/blog/common-...

Common Crawl - Blog - Trip Report: AI_dev (Linux Foundation) August 2025 On the 28th and 29th of August 2025, Thom Vaughan, Pedro Ortiz Suarez, and Thijs Dalhuijsen attended the Linux Foundation’s AI_dev event in Amsterdam.

On the 28th and 29th of August 2025, Thom Vaughan, Pedro Ortiz Suarez, and Thijs Dalhuijsen attended the Linux Foundation’s AI_dev event in Amsterdam.

commoncrawl.org/blog/trip-re...

Common Crawl Foundation | Preserving Humanity's Knowledge and Making it Accessible: Addressing Challenges of Public Web Data | Stanford HAI Learn about Common Crawl's insights from a recent data product and informed solutions for the future of public web data.

On October 22, the Common Crawl team will lead a seminar at Stanford HAI. Our topic of discussion is “Preserving Humanity's Knowledge and Making it Accessible: Addressing Challenges of Public Web Data”.

Please register at: hai.stanford.edu/events/commo...

We’re Walling Off The Open Internet To Stop AI—And It May End Up Breaking Everything Else A longtime open internet activist recently asked me whether I’d reversed my position on internet openness and copyright because of AI. The question caught me off guard—until I realized what h…

We’re Walling Off The Open Internet To Stop AI—And It May End Up Breaking Everything Else

www.techdirt.com/2025/09/08/w...

Common Crawl - Blog - Common Crawl Foundation at Stanford HAI: A Shared Legacy of Data and Innovation Stanford HAI and Common Crawl are joining forces to explore how open data can shape the future of AI. On 22 October 2025, their seminar will address privacy, safety, and security while showcasing new ...

Stanford HAI and Common Crawl are joining forces to explore how open data can shape the future of AI. On 22 October 2025, their seminar will address privacy, safety, and security while showcasing new ways to preserve and share humanity’s knowledge.
www.commoncrawl.org/blog/common-...

Common Crawl - Blog - July/August 2025 Newsletter We are pleased to release our newsletter for July and August 2025, with updates on our team's activities.

We are pleased to release our newsletter for July and August 2025, with updates on our team's activities.

commoncrawl.org/blog/july-au...

Common Crawl - Blog - Host- and Domain-Level Web Graphs June, July, and August 2025 We are pleased to announce a new release of host-level and domain-level web graphs based on the crawls of June, July, and August 2025. The host-level graph consists of 691.1 million nodes and 5.0 bill...

We are pleased to announce a new release of host-level and domain-level web graphs based on the crawls of June, July, and August 2025.

commoncrawl.org/blog/host--a...

We are pleased to announce the release of our August 2025 crawl, containing 2.44 billion web pages (or 424 TiB of uncompressed content).

commoncrawl.org/blog/august-...

Common Crawl - Blog - AI Optimization Is Here: Are You Ready for Search 2.0? Publishers and brands are shifting from SEO to AIO. Many SEOs unknowingly block their sites from AI search by restricting CCBot in robots.txt. As Search 2.0 transforms discovery, ensuring content can ...

Publishers and brands are shifting from SEO to AIO. Many SEOs unknowingly block their sites from AI search by restricting CCBot in robots.txt. As Search 2.0 transforms discovery, ensuring content can train AI models becomes as crucial as traditional SEO.

commoncrawl.org/blog/ai-opti...

The Enclosure of the Open Web and the Open Internet Toll booth: What’s Behind Pay-By-Crawl - Digital Medusa Cloudflare recently proposed a system where AI companies and crawlers would pay websites for the right to crawl their content, a move framed as “content independence day”, a response to growing concer...

The Enclosure Of The Open Web And The Open Internet Toll Booth: What’s Behind Pay-By-Crawl

digitalmedusa.org/the-enclosur...

Common Crawl - Blog - IETF 123 Report A report on IETF 123 in Madrid, including sessions on AI content preferences, bot authentication, and web measurement.

A report on IETF 123 in Madrid, including sessions on AI content preferences, bot authentication, and web measurement.

commoncrawl.org/blog/ietf-12...

Common Crawl - Blog - Host- and Domain-Level Web Graphs May, June, and July 2025 Our Web Graph release for July 2025 is now available, consisting of 481.6 million nodes and 3.4 billion edges at the host level, and 209.5 million nodes and 2.6 billion edges at the domain level.

Our Web Graph release for July 2025 is now available, consisting of 481.6 million nodes and 3.4 billion edges at the host level, and 209.5 million nodes and 2.6 billion edges at the domain level.

commoncrawl.org/blog/host--a...

Common Crawl - Blog - July 2025 Crawl Archive Now Available The crawl archive for July 2025 is now available. Crawled between July 7th and July 21st, the data contains 2.42 billion web pages, or 419 TiB of uncompressed content.

The crawl archive for July 2025 is now available. Crawled between July 7th and July 21st, the data contains 2.42 billion web pages, or 419 TiB of uncompressed content.

commoncrawl.org/blog/july-20...

Common Crawl - Blog - WMDQS Shared Task on Language Identification The Common Crawl Foundation, MLCommons, EleutherAI, and John Hopkins' Center for Language and Speech Processing have the pleasure of inviting you to register for the 1st shared task on Language Identi...

The Common Crawl Foundation, MLCommons, EleutherAI, and John Hopkins' Center for Language and Speech Processing have the pleasure of inviting you to register for the 1st shared task on Language Identification for web data.

commoncrawl.org/blog/wmdqs-s...

Unlocking data to advance European commerce and culture - Microsoft On the Issues Microsoft launches 2 initiatives to open Europe’s languages and culture, building on AI, cloud, and digital sovereignty commitments.

"MOIC will also partner with Common Crawl, one of the largest free and open repositories of web crawled data. MOIC will fund work at Common Crawl, leveraging native speakers to annotate and seed European language data in the publicly available Common Crawl data set."

Common Crawl - Blog - The First WMDQS-Masakhane LangID Hackathon In June 2025 the Common Crawl Foundation, MLCommons, and EleutherAI had the pleasure of hosting a virtual hackathon in partnership with Masakhane in order to collect language identification annotation...

In June 2025 the Common Crawl Foundation, MLCommons, and EleutherAI had the pleasure of hosting a virtual hackathon in partnership with Masakhane in order to collect language identification annotations for African languages.

commoncrawl.org/blog/the-fir...

Common Crawl - Blog - Host- and Domain-Level Web Graphs April, May, and June 2025 We are pleased to announce that the Web Graph for June 2025 is now available. The graph consists of 371.6 million nodes and 3.1 billion edges at the host level, and 161.8 million nodes and 2.2 billion...

We are pleased to announce that the Web Graph for June 2025 is now available. The graph consists of 371.6 million nodes and 3.1 billion edges at the host level, and 161.8 million nodes and 2.2 billion edges at the domain level.

commoncrawl.org/blog/host--a...

Common Crawl - Blog - Common Crawl at the United Nations Open Source Week, June 2025 The Common Crawl Foundation team took part in the United Nations Open Source Week in New York City this June, meeting with global developers, researchers, and policymakers to discuss all things open s...

The Common Crawl Foundation team took part in the United Nations Open Source Week in New York City this June, meeting with global developers, researchers, and policymakers to discuss all things open source and AI.

commoncrawl.org/blog/common-...

Common Crawl - Blog - June 2025 Crawl Archive Now Available We are pleased to announce that the crawl archive for June 2025 is now available.

We are pleased to announce that the crawl archive for June 2025 is now available.

www.commoncrawl.org/blog/june-20...

Common Crawl - Blog - May/June 2025 Newsletter We're happy to share our newsletter for May/June 2025 with updates from our team.

We're happy to share our newsletter for May/June 2025 with updates from our team.

commoncrawl.org/blog/may-jun...

The deadline for paper submissions has been extended!

The new deadline is July 3, 2025. AoE.

For more information, please visit: wmdqs.org

The AI Alliance Forms Non-profit AI Lab and AI Technology & Advocacy Association to Scale Open-Source Innovation /PRNewswire/ -- Today, the AI Alliance, a global collaboration of more than 180 organizations committed to AI open innovation, announced it has incorporated...

The AI Alliance Forms Non-profit AI Lab and AI Technology & Advocacy Association to Scale Open-Source Innovation

www.prnewswire.com/news-release...