CheckSEO vs Semrush
Both sit in SEO & marketing. Here is how they differ on the things you can actually check.
CheckSEO
checkseo.dev
84 free SEO and website tools that run on any URL without an account, covering meta tags and headings, broken links and images, Core Web Vitals, schema, robots.txt and sitemaps, AI crawler access, redirects and SSL, with a fix explained for each issue. A free full audit emails a one-page report. The paid Full Site Report audits up to 100 or 1,000 pages, gives a ready-to-paste fix for each page and one ranked fix plan for the whole site, and is checked by the team before it is emailed within 24 hours.
Semrush
semrush.com
SEO, paid search, content, social and PR tooling in one suite — enormous surface area, priced accordingly.
| CheckSEO | Semrush | |
|---|---|---|
| Entry price | No monthly price | $139/mo |
| Entry plan | — | SEO |
| Paid annually | — | $117.33/mosave 16% |
| Price checked | not verified | 19 Oct 2026 |
| Pricing model | Free plan | Free trial |
| Free plan | Yes | Yes |
| Category | SEO & Marketing | SEO & Marketing |
| Around since | — | 2008 |
Every price here was read from the vendor's own pricing page, most recently on 19 Oct 2026. Entry tier only — vendors change pricing without notice.
CheckSEO vs Semrush, answered
- Do CheckSEO or Semrush have a free plan?
- Both do. CheckSEO and Semrush each publish an ongoing free tier rather than a time-limited trial.
- What is the difference between CheckSEO and Semrush?
- CheckSEO: 84 free SEO and website tools that run on any URL without an account, covering meta tags and headings, broken links and images, Core Web Vitals, schema, robots.txt and sitemaps, AI crawler access, redirects and SSL, with a fix explained for each issue. A free full audit emails a one-page report. The paid Full Site Report audits up to 100 or 1,000 pages, gives a ready-to-paste fix for each page and one ranked fix plan for the whole site, and is checked by the team before it is emailed within 24 hours. Semrush: SEO, paid search, content, social and PR tooling in one suite — enormous surface area, priced accordingly.
