SEOultra Server Log File Crawl Analyzer is a web tool for examining server logs and seeing how search engines, AI crawlers, and SEO tools visit a site. It accepts standard Apache and Nginx combined logs, along with common access log formats, and checks parsed entries against more than 40 recognized crawler signatures. These include search and AI crawlers, SEO tools, social preview bots, and uptime monitors. Reports separate activity by crawler and summarize 2xx, 3xx, 4xx, and 5xx responses. They also call attention to frequently visited error and redirect paths, and bot requests for session IDs, tracking parameters, or other low-value URL patterns. The analyzer can flag a likely impersonator when a declared user agent differs from an operator’s published signature; this mismatch does not establish who owns the IP address. Unrecognized log lines are skipped and counted. Each analysis handles up to about 8,000 lines or 300,000 characters. Pasted logs are sent once over HTTPS for processing and are not kept beyond the request. Users can analyze pasted lines, load a healthy or problem sample, or clear the input. SEOULTRA names PT. Seoultra Metric Indonesia as its maker and says it began in 2021, working remotely from Singapore and Jakarta.
Who it is for
This tool suits site owners and SEO practitioners who want to inspect crawler activity directly from Apache or Nginx logs. It can help identify crawl waste, response-code patterns, and possible crawler impersonation within the supported analysis size.
What is good
- Separates log activity by crawler.
- Summarizes 2xx, 3xx, 4xx, and 5xx responses.
- Flags bot visits to low-value URL patterns.
- Recognizes more than 40 crawler signatures.
- Skips and counts unrecognized log lines.
What to know first
- Each analysis is limited to about 8,000 lines or 300,000 characters.
- Likely impersonation flags do not establish IP ownership.
Verdict
Choose SEOultra Server Log File Crawl Analyzer if you want a free web tool for segmenting crawler visits and reviewing response codes and crawl waste in server logs. Its analysis is capped by input size, and an impersonation flag is a user-agent mismatch signal rather than proof of IP ownership.
Get started with SEOultra Server Log File Crawl Analyzer
- Open the SEOultra Server Log File Crawl Analyzer website.
- Paste Apache or Nginx combined or common access log lines.
- Choose the control to analyze the pasted lines, or load a healthy or problem sample.
- Review the crawler and response-code breakdowns and flagged paths.
- Clear the input when finished.
What the free plan stops at
The free plan supports up to about 8,000 lines or 300,000 characters per analysis.
Questions about SEOultra Server Log File Crawl Analyzer
Is SEOultra Server Log File Crawl Analyzer free?
Yes. Its free plan costs 0.00 USD per free.
Which platforms does it support?
It is available on the web.
Which log formats can it read?
It accepts standard Apache or Nginx combined logs and common access log formats.
How much log data can one analysis handle?
Each analysis supports up to about 8,000 lines or 300,000 characters.
Does it prove a crawler owns an IP address?
No. It can flag a likely impersonator when a declared user agent conflicts with an operator’s published signature, but that does not prove IP ownership.
Who makes the analyzer?
SEOULTRA identifies PT. Seoultra Metric Indonesia as its maker and says it started in 2021, working remotely from Singapore and Jakarta.
SEOultra Server Log File Crawl Analyzer plans and pricing
All plansCompared on SEO log file analysis tools
- Free plan
- Yes
- Crawler segmentation
- Yes
- Crawl waste reports
- Yes
