LogLens vs Screaming Frog SEO Log File Analyser

LogLens analyzes CDN and web-server access logs in real time for SEO, crawler, security, and performance insights. It checks claimed bots against providers’ published IP ranges and says its coverage includes more than 200 bots. SEO monitoring connects crawler activity with sitemaps, Google Search Console data, and robots.txt changes; listed security detectors flag hacking probes, bot impersonation surges, and exposed secrets in URLs. The service describes 16 anomaly detectors, with alerts identifying affected IPs, paths, and crawlers. Alert frequency ranges from hourly on Free to every five minutes on Starter and above. Log sources include Cloudflare, AWS CloudFront, Vercel, Kinsta, Shopify, Apache, and Nginx; users can also upload Apache, Nginx, CloudFront, or Events CSV logs without those imports counting against the monthly request quota. Free provides 500K requests per month, one website, and 30 days of history. Solo is $19 a month, and the 14-day full-access trial requires no credit card. After the trial, data remains for seven days before deletion unless the account is claimed.

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.