3 posts in methodology
where ahrefs and moz get their backlink data
ahrefs, moz, semrush, and majestic each run their own proprietary crawler and ship a curated index - which is why no two backlink tools ever agree. here's the methodology, the size claims, and why common crawl is the only open alternative.
May 23, 2026·11 min·2,280 words
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common crawl release schedule (next crawl)
common crawl publishes a new web crawl every 1-2 months. the hyperlink graph follows about six weeks later. here's the full release history, the next expected drop, and why the cadence matters for backlink data freshness.
May 2, 2026·5 min·950 words
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common crawl, explained for SEOs
the 4.4B-edge open dataset that quietly powers half the AI training runs - and how we turn it into rank intelligence.
Apr 8, 2026·6 min·640 words
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