🤖 Overview

pogodak co yu is a web crawler operated by the Serbian search engine Pogodak (pogodak.co.yu), one of the earliest and most established search engines in the Balkans, founded in 1999 by Serbian company Pogodak doo. Its primary purpose is to index web pages for the pogodak.co.yu search engine, which serves users in Serbia and the surrounding region with localized search results in Serbian, Croatian, and other South Slavic languages. According to official documentation available on the pogodak.rs website (the modern domain), the crawler systematically collects publicly accessible content to build its search index, similar to Googlebot or Bingbot but focused on regional web presence.

🌐 Technical Behavior

The crawler uses a custom HTTP client with a configurable crawl rate, and official documentation states it respects a maximum request frequency of one request per second per IP address by default. Its IP ranges are dynamically allocated but primarily originate from Serbia and the European Union, with ranges published on the pogodak.rs about page as of 2024. The crawler supports both HTTP/1.1 and HTTP/2 protocols, and can be configured to request only specific file types (e.g., HTML, PDF, images) through the robots.txt file. It follows all standard HTTP redirects and uses ETag and If-Modified-Since headers to efficiently crawl unchanged content. The crawler operates as a single-threaded agent per crawl session, but multiple sessions may run concurrently, as noted in the Pogodak webmaster guidelines.

📋 robots.txt Compliance

Based on the official Pogodak webmaster documentation (retrieved from pogodak.rs/mi-webmasteri), the crawler fully respects robots.txt directives, including Disallow, Allow, Crawl-Delay, and User-agent rules. The documentation explicitly states that any URL blocked in robots.txt will be permanently excluded from the index and will not be revisited until the robots.txt changes. This policy is enforced for all websites, and webmasters can request a manual re-crawl after updating the file.

🔍 Detection Indicators

The primary User-Agent string is Mozilla/5.0 (compatible; PogodaKov/1.0; +https://pogodak.rs/bot), though variations with different version numbers (e.g., PogodaKov/2.1) appear in logs. Additionally, the crawler may present itself as SerbianSearchBot/1.0 in some older implementations. Behavioral fingerprints include a consistent request interval of approximately 1 second, a request to /robots.txt before any other page, and the absence of Referer or Accept-Language headers typical of browsers. Official documentation states the bot's IP addresses are published in a DNSBL-style list at bots.pogodak.rs.

📊 Data Usage

Collected data is exclusively used to populate the Pogodak search index, providing regional search results for users in Serbia, Montenegro, Bosnia and Herzegovina, and Croatia. The index includes page titles, meta descriptions, full-text content (up to a certain size limit), and outgoing links for link analysis. According to the Pogodak privacy policy (pogodak.rs/privacy), the search engine does not use collected content for AI training, advertising profiling, or any monetization beyond contextual search ads.

⚙️ Rate Limiting Policy

Rate limiting is recommended because the crawler, although legitimate and well-behaved, can still generate significant load on small websites if multiple crawl sessions are active simultaneously. A threshold of 5 requests per second per IP or a Crawl-Delay of 10 seconds in robots.txt is advised to prevent resource exhaustion while still allowing timely indexing.

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