3-way comparison · 2026
SEOptimer vs Seobility vs SEO Analysis Checker
SEOptimer and Seobility are both solid SEO tools, but they solve different problems. SEOptimer is an instant auditor aimed at agencies who need presentable reports. Seobility is a project-based crawler with one of the most generous free tiers around. We're the third option: an instant, AI-native checker that ranks fixes by impact and scores AI visibility for free. Here's how all three compare.
At a glance
Feature-by-feature comparison
| SEO Analysis Checker | SEOptimer | Seobility | |
|---|---|---|---|
| Price | Free, forever | Free audit; ~$29–$59/mo for agency features | Free tier; ~€49.90/mo+ for more |
| Free tier | Full report, every check, no limits | Free ungated grade, generous | Generous (1 project, ~1,000 pages) |
| Signup required | No | No for basic audit | Yes (project setup) |
| AI visibility score | Yes, free on every check | Limited | No |
| Speed | ~2–3 seconds | Near-instant | Crawl-based, slower |
| Fix prioritization | Impact-ranked "fix these 3 first" | Graded sections A–F | Detailed reports, not impact-ranked |
| CMS-specific fixes | Yes (WordPress, Shopify, Webflow) | General recommendations | General recommendations |
| Full-site crawl | No (deepseoanalysis.com for that) | On paid plans | Yes, within free-tier limits |
The verdict
Which one should you pick?
Pick SEOptimer if you need polished, client-facing PDF reports and white-label agency features. Pick Seobility if you want a free project-based crawler for ongoing site monitoring. Pick us if you want the fastest, most modern instant check with AI visibility scoring and impact-ranked fixes — free, no signup.
FAQ
Common questions
Which is best for agencies?
SEOptimer, for its white-label reports and embeddable audit widgets. We're better for quick spot-checks; deepseoanalysis.com is better for deep agency crawls.
Which has the best free tier?
Seobility's free tier is genuinely generous (1 project, ~1,000 pages). Ours is unlimited single-page checks with no signup. SEOptimer's free audit is ungated but paid plans start at ~$29/mo.
Which one checks AI visibility?
Only SEO Analysis Checker scores AI visibility (AI crawler access, llms.txt, content chunkability, FAQ schema) on every free check.
Can any of them crawl my whole site for free?
Seobility's free tier crawls up to ~1,000 pages. SEOptimer and our checker are single-page tools (our sibling deepseoanalysis.com does full-site crawls).
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