By Iliass El Barhoumi · Published · Last updated
Which question does each tool answer?
Surfer SEO is a content optimisation tool scored against the current search results. CrawlRadar is AI search analytics. The table lists the questions a team usually brings to each, and the tool built for that question.
| The question you are asking | Built for it |
|---|---|
| Which terms do the top-ranking pages use that my draft does not? | Surfer SEO |
| How long should this article be to compete in Google? | Surfer SEO |
| Does each section answer its heading in the first sentence? | CrawlRadar |
| Which AI crawlers fetched my pages this week, verified against vendor IP ranges? | CrawlRadar |
| How many visitors did ChatGPT, Perplexity, Gemini, Claude and Copilot send me? | CrawlRadar |
What CrawlRadar measures
- AI crawler visits. A server-side collector identifies 56+ AI crawlers in your request log and verifies each against the vendor’s published IP ranges, because these bots never run an analytics tag.
- AI referral traffic. A tracking tag counts the visitors ChatGPT, Perplexity, Gemini, Claude and Copilot send, and the pages they land on.
- Page readiness. 14 checks score each page 0–100 on whether an answer engine can retrieve, trust and quote it, including the 14 AI crawler tokens in your robots.txt.
How do teams use Surfer SEO and CrawlRadar together?
Draft against the search results in Surfer, then score the published page in CrawlRadar for answer-first structure, extractable passages and crawler access, and watch whether AI assistants start sending visitors to it.
When is Surfer SEO the better choice?
If your workflow is writing to rank in Google against a known set of competing pages, Surfer is built for that and CrawlRadar’s checks are a complement, not a replacement.
This page describes Surfer SEO by its category rather than its feature list, because feature lists change. Check Surfer SEO’s own documentation for what it offers today. See the other comparisons for the rest of the tools CrawlRadar is often used alongside.
Frequently asked questions
Is a high Surfer score enough for AI search?
Not necessarily. Matching the terms ranking pages use and being quotable by an answer engine are different properties. A page can do both, which is why the two tools measure different things.
Does CrawlRadar write content?
No. It measures and tells you what to fix, and its fix prompt is written for a coding agent such as Claude Code or Cursor to apply.