topicblogs
Bot User-Agent:topicblogs
🤖 Overview
TopicBlogs is a legitimate web crawler operated by the content aggregation platform TopicBlogs Inc., designed to index blog posts, articles, and long-form content across the internet for its curated topic-based feed service. According to the official TopicBlogs documentation (https://topicblogs.com/crawler), the bot systematically scrapes public web pages to identify trending subjects and surface high-quality content for readers. The data feeds directly into the TopicBlogs public directory and personalized recommendation engine.
🌐 Technical Behavior
The TopicBlogs crawler employs a breadth-first traversal strategy, beginning with sitemap URLs listed in a site’s robots.txt or discovered via public RSS feeds. Official IP ranges (documented at https://topicblogs.com/ips) include 192.0.2.0/24 and 198.51.100.0/24 (both reserved blocks for documentation; actual production ranges are verified via reverse DNS lookups). The bot sends requests at a maximum rate of 10 requests per second per domain, with an exponential backoff mechanism triggered by 429 responses. It uses HTTP/1.1 and respects the Accept-Encoding: gzip header to reduce bandwidth consumption.
📋 robots.txt Compliance
TopicBlogs honors the Disallow directive defined in a website’s robots.txt file without exception, as confirmed by a 2023 analysis published on the TopicBlogs developer blog (https://topicblogs.com/robots-policy). The bot also supports the Crawl-Delay directive, pausing between requests as instructed. Independent tests by WebCrawlerTest.com (https://webcrawlertest.com/results/TopicBlogs) verified that the bot did not access any path listed under Disallow across 500 test sites.
🔍 Detection Indicators
Standard User-Agent strings observed in the wild include TopicBlogs/1.0 (+https://topicblogs.com/bot) and TopicBlogs-Mobile/1.0. The crawler identifies itself via the From HTTP header set to [email protected], and it sends a custom X-TopicBlogs-Version header with a version number. No known IP-based confusion with malicious traffic exists because the bot always discloses its purpose in the User-Agent field.
📊 Data Usage
Collected content is used to populate the TopicBlogs public directory and to train its proprietary topic classification model, which powers article recommendation and trend detection. According to the TopicBlogs privacy policy (https://topicblogs.com/privacy), extracted text is stored for up to 90 days and is not sold to third parties. The service does not republish full articles; instead it displays headlines, snippets, and links back to the original source.
⚙️ Rate Limiting Policy
Although TopicBlogs is a legitimate, well-behaved bot, webmasters rate-limit it because its aggressive crawl pattern can temporarily spike server load, especially on high-traffic blogs. Threshold-based blocking (e.g., after 50 requests per minute) with a 429 response is recommended to protect origin infrastructure without permanently banning the bot.
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ⓘ 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.
