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HetrixTools offers an Uptime Monitoring service, where our monitoring locations (bots) will check whether our users' websites are online or not. Similar to more known services such as Pingdom or UptimeRobot.

Seznam is the crawler for Seznam.cz, the Czech Republic's largest domestic search engine with 50%+ market share.

AdIdxBot is the crawler used by Bing Ads. AdIdxBot crawls ads and follows the websites from those ads for quality control. Just like Bingbot, AdIdxBot has both “desktop” and “mobile” variants.

Catchpoint is a synthetic monitoring agent that tests website performance, availability, and functionality from global monitoring locations as part of Catchpoint's Internet Performance Monitoring platform.

UptrendsBot is a monitoring crawler that checks website availability, performance, and health.

SiteAuditBot crawls websites to analyze over 130 SEO and technical issues, examining crawlability, markups, internal linking, performance, HTTPS, and international SEO factors for optimization insights.

DuckDuckBot crawls websites to supplement DuckDuckGo's privacy-focused search results, working alongside data from Bing and other sources.

Seekport is an internet search engine. Originally founded in 2003, the search engine has been operated by SISTRIX, a platform intelligence provider from Bonn (Germany), since December 2014. The search engine is a public, free and independent alternative to Google. Seekport does not store user data and does not profile users. Seekport is also operated without advertising and has no conflicts of interest in the display of search results.

Cloudflare-Traffic-Manager monitors and routes traffic for Cloudflare's load balancing and traffic steering services.

StatusCake monitors website uptime, page speed, SSL certificates, and domain expiration from 48 global locations.

elmah.io Uptime Monitoring is a monitoring crawler that checks website availability, performance, and health.

Google-CloudVertexBot is Google's AI/ML platform crawler for Vertex AI, used for training and fine-tuning machine learning models.

Leikibot is a web crawler operated by DoubleVerify that analyzes webpage content for digital advertising verification, brand safety, and ad fraud detection services.

Better Uptime by Better Stack monitors website availability and performance, providing instant alerts, status pages, and incident management for DevOps teams.

Perplexity-User supports user actions within Perplexity. When users ask Perplexity a question, it might visit a web page to help provide an accurate answer and include a link to the page in its response.

HubSpot Page Fetcher crawls web pages to collect content and metadata for social media posting and content optimization within the HubSpot platform.

Taboola crawler analyzes page content and metadata for Taboola's content recommendation and native advertising platform.

Twilio webhook requests triggered by Twilio when there are incoming SMSes, calls, etc.

Siteimprove Crawl analyzes websites for accessibility, SEO, and content quality as part of Siteimprove's digital optimization platform.

Slackbot fetches URL metadata to generate rich link previews (unfurls) when users share links in Slack channels and direct messages.