Sitebulb vs WebCrawler Pro
Sitebulb
sitebulb.comWebCrawler Pro
webcrawler.proSide by side
| Figure | Sitebulb | WebCrawler Pro |
|---|---|---|
| Price from | — | $1/mo |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 4 | 7 |
| Spec score · SEO tools | 9.1 (#12) | 8.9 (#16) |
| Spec score · SEO Crawler Software | 8.5 (#8) | 8.6 (#6) |
| Spec score · Technical SEO Software | 8.4 (#8) | 8.6 (#6) |
| Free plan | No | Yes |
| Headquarters | Biddenden, Kent, United Kingdom | Rădășeni, Suceava, Romania |
| Integrations | Officially listed integrations include Google Analytics, Google Search Console, Google Sheets and Data Studio. | The FAQ names Google sign-in and support for user-provided OpenAI, Gemini, and Anthropic API keys; it says the user’s own key stays on their device. |
| Public API | Sitebulb's FAQ says Cloud did not yet have an API; aggregated data could instead be extracted through webhooks or the Data Studio connector. | The published documentation describes a PHP proxy and self-hosting configuration but does not document a public product API or SDK. |
| System requirements | Windows requires 64-bit Windows 10 or 11 and at least 4 GB free RAM, with 8 GB recommended. | Self-hosting requires PHP 7.4 or newer with pdo, pdo_sqlite, and curl extensions, writable api/scans and api/data directories, and Google OAuth configuration. |
| What it does | Sitebulb is a website crawler and technical SEO auditing product offered as desktop software and a browser-based cloud service. | WebCrawler Pro crawls websites and scores pages for technical SEO, answer-engine readiness, and generative-engine citation signals. |
Plans
Sitebulb
- Lite$18 a month
- Pro$42 a month
- Sitebulb CloudPrice not published
- Cloud£95 a month
WebCrawler Pro
- Free guestFree
- Free signed inFree
- Paid tokens$1 a month
- Free daily allowanceFree
- GuestFree
- Signed-inFree
- Prepaid crawl tokens$11,000, paid once
In their own words
WebCrawler Pro
WebCrawler Pro crawls websites and scores pages for technical SEO, answer-engine readiness (AEO) and generative engine optimization (GEO). Technical checks include titles, meta descriptions, H1s, canonicals, Open Graph tags, response times, page size, duplicate content, orphan pages and thin content. AEO checks include FAQ schema and question-based headings; GEO checks cover author attribution, freshness, factual density, authority links and original-research signals. Reports include crawl-depth charts, score distributions, response-time histograms, page breakdowns and site summaries, with PDF, CSV and JSON exports. Signed-in users can draft titles, FAQs, JSON-LD, alt text, internal links and llms.txt using a hosted model or their own API key. HTML mode fetches server responses; DOM Render executes JavaScript before extracting content. Guests receive 50 requests/day and signed-in users 100 requests/day. Paid tokens are listed at $1 a month. It supports Linux, macOS, Windows, web and self-hosting. Pages behind login walls, blocked by robots.txt or protected by advanced bot detection may not be fully crawlable.