ImageSEOLabBot

This page explains the crawler you may have seen in your server logs.

What it is

ImageSEOLabBot is the web crawler used by Image SEO Lab, a tool that generates SEO metadata (titles, alt text, captions, and descriptions) for the images on a website.

Its full user-agent string is:

Mozilla/5.0 (compatible; ImageSEOLabBot/1.0; +https://imageseolab.com/bot)

Why it visited your site

The crawler only visits a site when a signed-in user of Image SEO Lab submits that site's URL for a scan. It does not crawl the web at large, build a search index, or discover sites on its own. Our terms require users to scan only websites they own or have permission to access.

What it does

• Requests public HTML pages on the submitted site and reads the images referenced in them.
• Reads page context around each image — headings, nearby text, and the page title — so the generated metadata is relevant.
• Downloads image files temporarily to analyse them. We do not store your images; only the image URL and the generated text are kept.
• Does not submit forms, attempt logins, or access pages behind authentication.

How it behaves

• It reads and obeys robots.txt, including Disallow rules and Crawl-delay.
• It requests pages at a modest rate and is limited to a bounded number of pages per scan.
• It identifies itself honestly and does not attempt to disguise itself as a browser or another bot.

How to block it

Add the following to the robots.txt file at the root of your site:

User-agent: ImageSEOLabBot
Disallow: /

The crawler checks robots.txt on every scan, so the rule takes effect on the next visit. To block it at the network level instead, deny requests whose user-agent contains ImageSEOLabBot.

Contact

If the crawler behaved incorrectly, ignored your robots.txt, or placed unexpected load on your server, please tell us at support@imageseolab.com and include your domain and the relevant log lines. We investigate every report.