🤖 Overview

The BlitzBot is a legitimate web crawler operated by Blitz, a website performance monitoring and SEO analytics company headquartered in the United States. First publicly documented in 2018 on their official robbs page (https://blitz.com/crawler), the bot systematically collects publicly accessible web content to feed the Blitz platform’s backlink analysis, site health scoring, and competitive benchmarking tools. It is not a search engine bot nor an AI training crawler; its sole purpose is to gather data for website owners who subscribe to Blitz’s analytical services.

🌐 Technical Behavior

BlitzBot uses a distributed crawling architecture with a fixed set of IP addresses drawn from the 185.53.178.0/24 subnet, as confirmed by reverse DNS lookups published in the company’s technical documentation. Requests are made over both HTTP/1.1 and HTTP/2 protocols, typically with a default crawl delay of 1 second between requests to reduce server load. The bot follows standard web crawling conventions, including Link headers for pagination detection and If-Modified-Since headers to leverage cached content. BlitzBot does not parse JavaScript-rendered content; it only indexes static HTML and linked resources such as CSS and images for performance audits. Its crawl depth is limited to five levels by default, and it prioritizes pages with high inbound link counts.

📋 robots.txt Compliance

According to Blitz’s official robots.txt guidance (https://blitz.com/robots.txt-help), BlitzBot fully honors Disallow directives and noindex meta tags. The bot checks the website’s robots.txt file at the start of every crawl session and caches the file for up to 24 hours. If a Crawl-delay directive is present, BlitzBot respects it explicitly, overriding its default 1-second interval. Verified by independent web server logs, the bot stops immediately upon encountering a Disallow: / rule.

🔍 Detection Indicators

The primary User-Agent string is Mozilla/5.0 (compatible; BlitzBot; +https://blitz.com/crawler), with no rotating variants. Additionally, each request includes a custom HTTP header X-Bot: BlitzBot for easy identification. The bot’s requests originate from the ASN AS48510 (Blitz’s hosting provider) and consistently use the same TLS fingerprint across sessions, making fingerprinting straightforward via JA3 hash analysis.

📊 Data Usage

Collected data is used exclusively for Blitz’s website performance and SEO analytics suite, including page speed scoring, broken link detection, HTTPS certificate validation, and backlink profile analysis. No content is stored for AI model training or shared with third parties. Blitz’s privacy policy (https://blitz.com/privacy) explicitly states that raw page content is only retained for 30 days and then aggregated into anonymized metrics.

⚙️ Rate Limiting Policy

BlitzBot is rate-limited because its deep crawling can generate hundreds of requests within minutes during full-site audits. Webmasters are advised to implement threshold-based blocking (e.g., 50 requests per second) to protect server resources while allowing the bot to complete its analysis, which benefits the website owner’s own SEO efforts.

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the bots listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.