EdgeComet Log Analyzer vs Spider-Lens

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.

Spider-Lens is a free, open-source application for analyzing Apache and Nginx server logs. It monitors traffic, HTTP errors, crawler bots and server performance through a dashboard covering requests, human visits, error rates, HTTP status trends, bot distribution and 12-week patterns. Crawler monitoring detects 16 or more bots and shows crawl budget and crawler volume. Performance reports include Time to First Byte by URL, configurable slow thresholds and CSV or Excel export. A sitemap crawler follows internal links and records titles, H1 headings, word counts, canonicals, robots directives and crawl depth. SMTP alerts and webhooks can report 404 spikes, server errors, missing Googlebot and weekly summaries. The project documents Discord, Slack and an MCP server integration. It runs as a Node.js application or native WordPress plugin, with no Node.js required for the plugin. Node deployment requires Node.js 18+, npm 9+ and log access. The interface lists 16 languages and automatic browser-language detection. Nova uses Gemini when configured.