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SEOultra Server Log File Crawl Analyzer
Jakarta, Indonesia and Singapore
What it is
SEOultra Server Log File Crawl Analyzer is a free web tool that reads server access logs and shows how search engines, AI crawlers, SEO tools, social-preview services, and uptime monitors visit a site. It accepts standard Apache or Nginx combined and common access-log formats. Parsed entries are compared with more than 40 known crawler signatures. Reports separate activity by crawler, summarize 2xx, 3xx, 4xx, and 5xx responses, and identify frequently requested error or redirect paths. The analyzer also highlights hits on session IDs, tracking parameters, and other low-value URL patterns that can consume crawl budget. It can flag likely user-agent impersonation when a declared agent conflicts with an operator’s published signature, but that signal does not prove IP ownership. Unknown lines are skipped and counted. Each analysis handles about 8,000 lines or 300,000 characters. Pasted logs are sent once over HTTPS and not retained after processing. Controls allow pasted analysis, sample loading, and clearing input.
For and against
For
- Free web-based analyzer
- Recognizes more than 40 crawler signatures
- Segments responses by crawler and status code
- Flags crawl-budget waste patterns
- Does not retain pasted logs after processing
Against
- Each analysis is limited to about 8,000 lines
- Unknown log lines are skipped
- Impersonation flags do not prove IP ownership
- No free trial is offered
The verdict
SEOultra provides focused log analysis without a charge or persistent log storage. Its line limit and dependence on recognized signatures mean larger or unusual datasets may require additional handling.
Who it suits
This tool suits site owners, SEO practitioners, and technical teams investigating crawler behavior, crawl waste, redirects, and server errors. It is useful for users who can provide Apache or Nginx log text.
Plans and prices
Server Log File Crawl Analyzer
Up to about 8,000 lines or 300,000 characters per analysis
Read 7 Oct 2026 · seoultra.id
On the record
- Bot spoofing
- It flags likely impersonators when a crawler's declared user agent does not match the operator's published signature, but says this does not prove IP ownership.seoultra.id · read 7 Oct 2026
- Crawl budget
- It flags bot hits on session IDs, tracking parameters, and other low-value URL patterns.seoultra.id · read 7 Oct 2026
- Crawler signatures
- It matches parsed lines against more than 40 known search, AI, SEO tool, social preview, and uptime monitoring crawler signatures.seoultra.id · read 7 Oct 2026
- Data handling
- Pasted log lines are sent once over HTTPS to the maker's server for analysis and are not stored beyond the request.seoultra.id · read 7 Oct 2026
- Input workflow
- The tool provides controls to analyze pasted log lines, load a healthy or problem sample, and clear the input.seoultra.id · read 7 Oct 2026
- Maker and founding
- SEOULTRA identifies its maker as PT. Seoultra Metric Indonesia and says it started in 2021.seoultra.id · read 7 Oct 2026
- Maker locations
- The maker says it works remotely from Singapore and Jakarta and lists Jakarta, Indonesia and Singapore as workplaces.seoultra.id · read 7 Oct 2026
- Parsing behavior
- Unrecognized log lines are skipped and counted rather than guessed at.seoultra.id · read 7 Oct 2026
- Processing limit
- The page says each analysis supports up to about 8,000 lines or 300,000 characters.seoultra.id · read 7 Oct 2026
- Purpose
- The analyzer reads real server logs to show how search engines, AI crawlers, and SEO tools crawl a site.seoultra.id · read 7 Oct 2026
- Status codes
- It breaks down 2xx, 3xx, 4xx, and 5xx responses by crawler and identifies frequently hit error and redirect paths.seoultra.id · read 7 Oct 2026
- Supported formats
- It accepts standard Apache or Nginx combined or common access log formats.seoultra.id · read 7 Oct 2026
