Link Velocity

Link velocity is the speed at which a website or page gains, or loses, backlinks over a period of time, such as new referring domains per month. SEOs use it to spot trends and unusual activity in a link profile, though Google has not confirmed it as a ranking factor.

Written by Paul Hoda, SEO consultant since 2005. Last updated 8 November 2026.

How link velocity is measured

Link velocity is usually tracked in a backlink tool such as Ahrefs, Semrush or Majestic. These tools record when they first find each new link and when old links disappear. Common measures include:

  • New referring domains gained per week or month.
  • Referring domains lost over the same period.
  • Net growth: links gained minus links lost.
  • The same figures for a single page, such as a new piece of research.

Each tool uses its own crawler, so the numbers will differ between tools and will not match Google’s own view of the web exactly.

Does link velocity affect rankings?

This is where myth and fact often get mixed up. Some SEOs believe that gaining links too quickly can trigger a penalty, or that a steady, slow pace is safer. Google has not said it uses link velocity in this way, so treat these ideas as community theories.

What Google has said is that it looks for unnatural link patterns and link schemes. Systems such as SpamBrain are designed to detect manipulative links. A sudden flood of low-quality links from unrelated sites may be part of a pattern that looks unnatural, but the problem is the quality and source of the links, not the speed alone.

Natural spikes happen all the time. A news story, a viral post or a successful digital PR campaign can earn hundreds of genuine links in a few days. That is normal.

Why monitoring link velocity is useful

  • Measuring campaigns. A rise in new referring domains after a launch shows a campaign is working.
  • Spotting lost links. A drop can reveal deleted pages or broken links worth recovering.
  • Detecting attacks. A sudden surge of spammy links you did not build could signal negative SEO, though Google says it is usually good at ignoring such links.
  • Benchmarking competitors. Comparing growth rates shows who is investing in links.

How to monitor link velocity

  1. Choose one backlink tool and stick with it for consistent trends.
  2. Track new and lost referring domains monthly.
  3. Note campaigns and launches so you can link spikes to their causes.
  4. Review any unexpected spike to see where the links came from.
  5. Cross-check with the Links report in Google Search Console, which shows a sample of links Google knows about.

Common mistakes

  • Slowing down good links. There is no reason to hold back genuine coverage to keep a steady pace.
  • Buying links to hit a target rate. Chasing a velocity number encourages risky tactics.
  • Panicking over spikes. Check the quality of the new links before taking action.

Key Takeaways

  • Link velocity is the rate at which a site gains or loses backlinks.
  • Google has not confirmed link velocity as a ranking factor.
  • Link quality and source matter far more than the speed of growth.
  • Natural spikes from news or PR campaigns are normal.
  • Monitoring link velocity helps measure campaigns and spot lost or spammy links.

Related Terms

Not sure how your own site measures up? Request a free SEO review, or keep learning in the SEO Encyclopedia.