Semrush vs Sitebulb Comparison 2026
Both cover seo & discovery. Here is what separates them on price, billing, what you can take with you, and coverage.
Keyword and competitor research at agency depth
A crawler that explains what it found
At a glance
- Sitebulb starts cheaper, at $18.
- Neither has a free tier.
Side by side
Semrush | Sitebulb | |
|---|---|---|
| Starting price (they differ) | From $139 | From $18 |
| Pricing model | Paid subscription | Paid subscription |
| Free tier | No | No |
| Billing | Monthly or annual | Monthly or annual |
| Free trial | Not stated | Not stated |
| API | Not stated | Not stated |
| Data export | Not stated | Not stated |
| Their cut | None | None |
| Runs on (they differ) | Web | macOS, Windows |
| Covers | SEO & Discovery, Research & Trends |
Shaded rows are where the two answers disagree and both listings have answered. A row where one side has not stated a fact is left plain, because silence is not a difference.
Semrush
Keyword and competitor research at agency depth
Semrush is the tool an SEO reaches for when they need to know what a competitor ranks for and what it is worth. Position tracking, site audits and keyword gaps are all there, along with newer reporting on how brands surface in AI answers. It costs more than most creators can justify, and the entry plan tracks five sites and 500 keywords.
Only on this side
- Covers research & trends
Sitebulb
A crawler that explains what it found
Sitebulb crawls a site and returns prioritised issues with an explanation of why each one matters, which is the difference between this and a spreadsheet of URLs. Crawl maps draw the structure of a site as a picture. JavaScript rendering is on every plan rather than reserved for the dearest. The desktop product audits ten thousand URLs at the entry tier, so anybody auditing a large site is looking at the cloud version instead.
Our note
Check your URL count before choosing Lite, because 10,000 sounds generous and a site with faceted navigation or a large archive passes it without anybody noticing. The explanations are the reason to buy this over a cheaper crawler, and they are worth most to whoever is still learning what the findings mean.
Ratings are the average of reviews readers left. The facts are stated by each tool’s own listing and are not verified by CloutStack. How we make money.