Overview

Screaming Frog SEO Log File Analyser is a locally installed desktop tool that examines server logs to show how search and AI bots crawl a site. It is best suited to SEO practitioners who need to connect bot requests with URL-level behaviour; its main trade-off is a tightly capped free tier, with paid use still bounded by available storage.

Log data stays in a local database, and the software supports Apache, W3C Extended and Amazon Elastic Load Balancing formats. It can handle millions of log events, although practical capacity depends on hard drive space. That makes it a focused option for substantial SEO log work, not a general-purpose log monitoring platform.

Key features

Bot verification and crawl reporting

The analyser can verify supported search and AI bots as genuine, helping distinguish real crawler activity from spoofed requests. Its reports cover crawled URLs, crawl frequency, response errors, redirects, bytes downloaded and response times. Together, these measures help SEOs see where bots go and whether requests encounter problems, rather than relying on request counts alone.

Matching and moving data

Users can import data with a URLs column and match it against log activity, including crawls, directives or external link data. This is useful when crawl evidence needs to be considered alongside other URL-level information. Drag-and-drop log import keeps ingestion straightforward, while CSV and Excel export make it easier to carry analysis into another workflow.

Both the free and paid versions include free technical support. That is a practical benefit for a specialised tool, although the available support detail does not establish response times or service levels.

Pricing

The free plan is free and includes 1,000 log event lines and 1 project. That cap makes it suitable for a small evaluation or limited task, but not sustained analysis of large logs or multiple projects.

The paid licence costs 139.00 USD per year, per user. It includes unlimited log events and unlimited projects, with log processing still subject to hard drive capacity. The licence lasts one year and requires renewal, so this is a recurring annual commitment rather than a one-time purchase. For an SEO routinely analysing large files or several projects, the removal of event and project caps is the meaningful upgrade; occasional users may find the free limits too restrictive to serve as a regular plan.

A free trial is available. Screaming Frog was founded in 2010 and is based in Henley-on-Thames, Oxfordshire, UK.

Platforms

The application is available for Linux, macOS and Windows. Because it installs locally and stores event data in a local database, it suits workflows that favour keeping log data on the analysis machine. The storage ceiling is tied to the available hard drive, so machine capacity matters as log volumes grow.

Who it's for

This is a strong fit for SEO practitioners who need evidence about search and AI bot access, want to verify supported bots, and need crawl details matched against other URL data. Its local processing and broad event capacity will appeal to teams handling substantial logs without using a hosted analysis workflow.

It is less suitable for people seeking a general log analytics service, a web-based workflow, or a free plan for ongoing high-volume work. The free tier's 1,000-line and single-project limits are especially restrictive for larger sites.

Pros and cons

Pros

Focused SEO diagnostics: Bot verification plus URL, frequency, error, redirect, transfer and response-time reporting provides actionable crawl context.
Local analysis: Logs are stored in a local database, and Linux, macOS and Windows support covers the major desktop platforms.
Flexible data handling: URL-based matching, drag-and-drop imports and CSV or Excel exports support analysis across related datasets.
Uncapped paid event and project counts: The annual licence removes those quotas, with capacity instead constrained by hard drive space.

Cons

Very small free allowance: 1,000 event lines and one project limit the free plan to small-scale use.
Annual renewal: The 139.00 USD per year per-user licence lasts one year and requires renewal.
Storage remains a constraint: Unlimited event access does not remove the practical limit imposed by the analysis machine's hard drive.
Narrow audience: The product is designed specifically for SEO analysis of search and AI bot activity, rather than broad log management.

Alternatives

For a different SEO log-analysis option, CrawlGenius Log Analyzer offers a web platform with a free allowance of 10,000 log lines per month, one project and a seven-day visible window, plus a Starter plan at 49.00 EUR per month with no commitment. It may suit readers who prefer browser access and a monthly entry plan over local desktop processing and an annual per-user licence.

LogLens is another web, API and self-hosted option; its free plan includes 500K requests per month, one website and 30 days of history. That makes it worth considering for readers who want a stated monthly request quota and history window across deployment choices.

SEOMER is a web-based freemium alternative with quick page checks, limited daily usage and basic platform access on its free plan. It is a different fit for readers prioritising quick page checks rather than local log-file analysis.

Spider-Lens is a free alternative with Linux, macOS, Windows, web and self-hosted platform options. SEO Log Auditor is free, open source under the MIT license and runs locally, making it relevant to readers who want a local open-source option. Log File Bot Traffic Cost Analyzer is free and offers browser triage under 500 MB, CLI analysis from 500 MB to 50 GB, and BigQuery for 50 GB or more.

AuditLabs SEO Log File Analyzer is a web-based freemium alternative with a paid Supporter plan at 7.99 USD per month. EdgeComet Log Analyzer is a paid web, API and self-hosted option; its Professional annual plan is 87.00 USD per year and includes up to 200K Googlebot requests, free access for all AI bots, two users and 30-day data history.

Readers comparing a broader set of products can browse SEO Log File Analysis Tools, SEO Crawler Software, Technical SEO Software and SEO tools.

Verdict

Choose Screaming Frog SEO Log File Analyser if you are an SEO practitioner who needs detailed search and AI bot crawl evidence, local log storage and analysis across large event volumes. Its strongest case is the combination of bot verification, useful response diagnostics and flexible URL matching. Look elsewhere if you need a generous free allowance, browser-first access or a general-purpose log platform; the free caps are small, and paid use renews annually per user.

	ScoutMyBusiness	Screaming Frog SEO Log File Analyser
Free plan	No	Yes
Free trial	Yes	Yes
Paid from	$29/mo	$11.58/mo
Platforms	Web	Linux, macOS, Windows
Free plan	No	Yes
Keyword research	Yes
Rank tracking	Yes
Competitor research	Yes
Tracked keywords	15 keywords
Log-file analysis		Yes

ScoutMyBusiness vs Screaming Frog SEO Log File Analyser

ScoutMyBusiness

Screaming Frog SEO Log File Analyser