Published on 2025-08-07T06:18:08Z

Barkrowler bot

Barkrowler is a specialized web crawler operated by the SEO intelligence firm Babbar.tech. Its primary function is to scan websites to build link graphs and analyze page metadata for SEO analysis. The data it collects powers Babbar's tools, which help SEO professionals understand a site's authority and competitive positioning. It is a lightweight and well-behaved bot designed to minimize server impact.

What is Barkrowler?

Barkrowler is a web crawler used by Babbar.tech, an SEO intelligence company, to index web content for search engine optimization (SEO) analysis. It identifies itself in server logs with user-agent strings such as Mozilla/5.0 (compatible; Barkrowler/0.9; +https://babbar.tech/crawler). As a lightweight crawler, Barkrowler focuses on building link graphs and analyzing page metadata rather than rendering dynamic content. It is designed to be efficient and respectful of server resources, adhering to robots.txt directives and implementing built-in crawl delays.

Why is Barkrowler crawling my site?

Barkrowler is visiting your website to gather data for Babbar's SEO analysis tools. It is specifically interested in your site's link structure, including both internal and external links, to understand your site's place in the larger web ecosystem. The frequency of its visits is determined by your site's size, authority, and update schedule, but it is configured with delays between requests (typically 2.5-5 seconds) to minimize its impact on your server. This crawling is considered authorized as it follows standard web protocols.

What is the purpose of Barkrowler?

The main purpose of Barkrowler is to serve as the data collection engine for Babbar's SEO intelligence platform. The information it gathers helps build comprehensive link graphs that reveal how websites are interconnected. This data powers Babbar's analysis tools, which provide insights into a website's visibility, authority, and competitive standing. For website owners, Barkrowler's activity provides indirect benefits by contributing to the SEO insights available through Babbar's services, which can inform content and linking strategies.

How do I block Barkrowler?

To prevent Barkrowler from accessing your website, you can add a specific disallow rule to your robots.txt file. This is the standard method for communicating with legitimate web crawlers.

Add the following lines to your robots.txt file to block Barkrowler:

User-agent: Barkrowler
Disallow: /

How to verify the authenticity of the user-agent operated by Babbar.tech?

Reverse IP lookup technique

To verify user-agent authenticity, you can use host linux command two times with the IP address of the requester.
  1. > host IPAddressOfRequest
    This command returns the reverse lookup hostname (e.g., 4.4.8.8.in-addr.arpa.).
  2. > host ReverseDNSFromTheOutputOfFirstRequest
If the output matches the original IP address and the domain is associated with a trusted operator (e.g., Babbar.tech), the user-agent can be considered legitimate.

IP list lookup technique

Some operators provide a public list of IP addresses used by their crawlers. This list can be cross-referenced to verify a user-agent's authenticity. However, both operators and website owners may find it challenging to maintain an up-to-date list, so use this method with caution and in conjunction with other verification techniques.