EdgeComet Log Analyzer vs SEO Log File Analyzer by Kunal Dabi

EdgeComet Log Analyzer records search-engine and AI-crawler requests together with the page state each bot received, helping teams examine crawling and indexing. It covers bots such as Googlebot, Bingbot, GPTBot, ClaudeBot, and Perplexity. For each request, it can show the title, meta description, canonical, robots directives, hreflang, and structured data in the HTML served to the bot. Requests are classified as valuable, questionable, or wasted, with causes such as errors, redirects, blocked URLs, non-canonical pages, and render errors. Bot identities are checked against published IP ranges, with 35 real identities supported for verification. Collection requires routing bot requests through EdgeComet via a CDN or proxy; it does not import or parse log files. Supported routing platforms include Cloudflare Workers, Fastly VCL, AWS CloudFront Lambda@Edge, and nginx. The product also offers an HTTP API, an MCP server, and an Apache-2.0 open-source rendering and caching core that can be self-hosted. Professional costs $99 a month. There is no free plan; a 14-day trial is listed.

SEO Log File Analyzer by Kunal Dabi is a free web tool for examining Apache and Nginx access logs. It reports crawler activity, crawl-budget use, indexability, bot traffic, and response-time patterns. The analyzer shows requests to indexable HTML, assets, and low-value paths such as /wp-admin/. It tracks crawlers including Googlebot, Bingbot, Yahoo, DuckDuckBot, ChatGPT, Perplexity, AhrefsBot, SemrushBot, Applebot, and Bytespider. Sitemap URLs can be compared with bot-crawled URLs to find uncrawled pages. Reports include status-code and content-type breakdowns, per-bot charts, crawl coverage, and an action plan, with URL and error lists exportable to CSV. Response times are measured at p50, p95, and p99. Multiple.log,.txt, or extensionless files can be combined. The Free Log File Analyzer plan costs nothing, is free forever, and requires a daily access code.