🤖 Overview

Openfind is a web crawler operated by Openfind Information Technology Co., Ltd., a Taiwan-based search engine and enterprise search software provider founded in 1998. Its primary purpose is to index publicly accessible web pages for the Openfind search engine (www.openfind.com.tw) and for the company’s enterprise search solutions, such as Openfind Enterprise Search (OES). The crawler collects content to build a searchable index that serves both general internet users and organizations using Openfind’s on-premise search appliances. According to Openfind’s official documentation, the crawler is part of their “site search” and “web search” services, and it has been operational for over two decades.

🌐 Technical Behavior

The Openfind crawler typically follows a moderate crawl pace, requesting pages at intervals that vary between a few seconds to several minutes depending on server response. It uses standard HTTP GET requests and respects the robots.txt directives as documented in their public resources. The IP ranges associated with Openfind are registered to Taiwan, primarily under AS numbers managed by Chunghwa Telecom and other local ISPs, though exact ranges are not publicly enumerated. The bot does not support HTTP/2 or advanced protocols; it communicates via HTTP/1.1 and may include a User-Agent string like Openfind/1.0 or Openfindbot/1.0. Behavioral analysis from server logs shows that the crawler does not attempt to bypass rate limits or session controls, and it often follows links in a breadth-first manner.

📋 robots.txt Compliance

According to Openfind’s published guidelines and observed behavior, the crawler fully honors robots.txt directives. Documentation on the Openfind website explicitly states that site owners can block the crawler by adding a Disallow rule for the Openfind/1.0 user-agent token. There are no known instances of the crawler ignoring disallow rules, and it respects both global and path-specific restrictions.

🔍 Detection Indicators

The primary detection indicator is the User-Agent string, most commonly Openfind/1.0 or Openfindbot/1.0. Other variants include Openfind/2.0 and Openfind (compatible; MSIE 6.0; Windows NT 5.0;) in older versions. The bot does not transmit a custom X-Forwarded-For header and typically identifies itself only via the User-Agent. Server logs may also show reverse DNS lookup results ending in .openfind.com.tw.

📊 Data Usage

Data collected by the Openfind crawler is used to populate the Openfind search engine index, enabling public web searches at their portal. Additionally, the indexed content feeds into Openfind Enterprise Search (OES) products, allowing organizations to deploy internal search over their own domains. The company does not use collected data for AI training or large language model development; its usage is strictly confined to search engine indexing and enterprise information retrieval.

⚙️ Rate Limiting Policy

While the Openfind crawler is legitimate and non-malicious, it can become aggressive when indexing large sites, particularly if the site has many dynamic pages. Rate limiting is recommended to preserve server resources and prevent unintended load, and threshold-based blocking may be applied when requests exceed 10 per second from a single IP, as documented in community administration guides and Openfind’s own best practices.

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