crawlgraph is now reading from the new cc-main-2026-apr-may-jun index. it brings together Common Crawl's CC-MAIN-2026-17, CC-MAIN-2026-21, and CC-MAIN-2026-25 crawls. the resulting domain graph covers 121.1M domains and 3.90B domain-level links.
what is in the new index
the release combines three source crawls into one queryable domain graph:
CC-MAIN-2026-17CC-MAIN-2026-21CC-MAIN-2026-25
its release id is cc-main-2026-apr-may-jun. the 121.1M domains and 3.90B domain-level links are the upstream graph totals, not crawlgraph estimates.
what the cutover changes for lookups
each crawlgraph release is an immutable snapshot. at cutover, the active lookup database moves to the new release while the search, export, and account flows stay the same. a lookup can show a different backlink profile because it now reflects observations from the newer source crawls.
Common Crawl data is not a live view of the web. an absent link means it was not observed in that release, which is different from proving that the page or link no longer exists.
backlink-change digests for lifetime customers
lifetime customers with a saved site are being enrolled for release digests on their main domain. when a new queryable release arrives, the email summarizes newly observed referring domains, domains absent from the newer snapshot, and authority movement between the two releases.
every digest includes a one-click unsubscribe for that monitored domain. unsubscribing stops future release digests without changing lifetime account access.
compare releases through the api
api users can call GET /api/v1/changes with a domain and two release ids to compare snapshots directly. the from and to query parameters make the pair explicit. when the older release is omitted, crawlgraph selects the nearest queryable ancestor of the newer release.
the response separates added and removed observations, reports authority movement, and identifies both releases used for the comparison. request and response details are in the changes api reference.
run a lookup on the new index
enter your domain below to see which referring domains the Apr-Jun 2026 index observed for your site.
writes the queries we run internally. ships one tactical post a week.
+ a free domain audit when you sign up.