Screaming Frog SEO Log File Analyser vs WebCrawler Pro
Screaming Frog SEO Log File Analyser
screamingfrog.co.ukWebCrawler Pro
webcrawler.proSide by side
| Figure | Screaming Frog SEO Log File Analyser | WebCrawler Pro |
|---|---|---|
| Price from | $11.58/mo | $1/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 5 | 7 |
| Spec score · SEO tools | 9.1 (#11) | 8.9 (#16) |
| Spec score · SEO Crawler Software | 8.7 (#3) | 8.6 (#6) |
| Spec score · Technical SEO Software | 8.7 (#4) | 8.6 (#6) |
| Company size | LinkedIn lists Screaming Frog as privately held with 11–50 employees. | SaaSHub lists WebCrawler.pro as a Romanian startup with 1–9 employees and a 2026 founding year. |
| Free plan | Yes | Yes |
| Headquarters | Henley-on-Thames, Oxfordshire, UK | Rădășeni, Suceava, Romania |
| Purpose | The desktop application analyses access logs to give SEOs insight into search engine and AI bot crawl activity. | WebCrawler Pro crawls websites and scores pages for technical SEO, answer-engine readiness (AEO), and generative engine optimization (GEO). |
| Self-hosting | It is delivered as a locally installed desktop program rather than a vendor-hosted web service or self-hosted server package. | The maker says the PHP and vanilla-JavaScript project can be uploaded to any web host and pointed to through the proxy selector. |
| Support | Support is offered through email and tickets, with the support page stating a target response within 24 hours. | The contact page says it aims to reply within 1–2 business days, with bug reports and crawl issues usually answered faster. |
| What it does | The desktop application parses server access logs so SEO teams can inspect search-engine and AI-bot crawling behavior. | WebCrawler Pro crawls websites and scores pages for technical SEO, answer-engine readiness, and generative-engine citation signals. |
Plans
Screaming Frog SEO Log File Analyser
- FreeFree
- Paid$139 a year
- Free VersionFree
- Paid licence$139 a year
- Paid Version$139 a year
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
Screaming Frog SEO Log File Analyser
Screaming Frog SEO Log File Analyser is a desktop application for examining access logs and understanding search engine and AI bot activity. It installs locally and keeps log event data in a local database. It accepts Apache, W3C Extended, and Amazon Elastic Load Balancing logs, and can verify supported bots to identify spoofed requests. Reports cover crawled URLs, crawl frequency, response errors, redirects, bytes downloaded, and response times. Users can match imported data containing a URLs column against log activity, including crawls, directives, or external link data. Log files can be added by drag and drop, with analysis exported to CSV or Excel. The software can process millions of events, though capacity depends on hard drive space. It runs on Linux, macOS, and Windows. The free plan allows 1,000 log event lines and one project. The paid licence costs $139 per year and includes unlimited events and projects, subject to storage capacity. Free technical support is listed for both versions.
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.