Key Features
Deep Crawling
Crawl any website at scale — desktop and mobile user agent, JavaScript rendering, custom crawl settings and scheduling.
Visual Reporting
The most visual SEO audit reports available — charts, graphs and prioritised issue lists make findings easy to present to clients.
Hints System
800+ SEO hints with prioritised recommendations — automatically highlights the most impactful issues to fix first.
Internal Link Analysis
Map your entire internal link structure — identify orphan pages, link equity distribution and crawl depth issues.
Core Web Vitals
Crawl and report on Core Web Vitals alongside technical SEO — speed and UX data alongside traditional SEO issues.
Cloud Crawling
Cloud version available for remote team access and scheduled crawls without a local machine running.
Pros & Cons
What we like
Most visual and client-friendly audit reports of any crawler
Hints system prioritises issues intelligently
Covers JavaScript rendering for modern web apps
Core Web Vitals integration is genuinely useful
Cloud version for remote teams
Active development — regular feature updates
Watch out for
Desktop software requires local installation (unless using Cloud)
More expensive than Screaming Frog at equivalent tier
Learning curve for non-technical SEOs
Cloud version significantly more expensive than desktop
Best Alternatives
Semrush
Cloud-based site audit included in full SEO suite — no desktop software needed
Ahrefs
Site Audit tool in Ahrefs covers most technical SEO needs within a full SEO platform
Diib
More affordable automated SEO auditing for small business websites
Rank Math
Free WordPress plugin for on-page SEO — complements Sitebulb for WordPress sites
Frequently Asked Questions
Sitebulb is a desktop SEO crawler used by technical SEO professionals and agencies to audit websites for technical issues — broken links, crawlability problems, duplicate content, page speed issues and internal link problems. Its visual reports are particularly popular for client presentations.
Sitebulb has more visual and client-friendly reporting — its charts and prioritised hints make findings easier to communicate. Screaming Frog is more affordable (free up to 500 URLs, £149/year for unlimited) and has been around longer with a larger user community. Both are excellent — Sitebulb for agency client reporting, Screaming Frog for technical SEOs who prefer raw data.
Sitebulb offers a 14-day free trial. Paid plans start at $13.50/month for the Desktop Lite plan. There is no permanent free plan.