GNU Terry Pratchett Usage Statistics · Download List of All Websites using GNU Terry Pratchett
A long-running tribute to late fantasy author Sir Terry Pratchett. X-Clacks-Overhead.
English - Inferred Usage Statistics · Download List of All Websites using English - Inferred
Based on the title and description text the website content is potentially English.
Viewport Meta Usage Statistics · Download List of All Websites using Viewport Meta
This page uses the viewport meta tag which means the content may be optimized for mobile content.
IPhone / Mobile Compatible Usage Statistics · Download List of All Websites using IPhone / Mobile Compatible
The website contains code that allows the page to support IPhone / Mobile Content.
Pound Sterling Usage Statistics · Download List of All Websites using Pound Sterling
The website uses the £ symbol on its website - meaning it may accept payment in this British currency.
Currency
SPF Usage Statistics · Download List of All Websites using SPF
The Sender Policy Framework is an open standard specifying a technical method to prevent sender address forgery.
DMARC Usage Statistics · Download List of All Websites using DMARC
A technical specification created by a group of organizations that want to help reduce the potential for email-based abuse
DMARC
DMARC Reject Usage Statistics · Download List of All Websites using DMARC Reject
The domain has a DMARC policy of 'Reject'. This policy tells the mail server to reject emails that fail DMARC checks, preventing them from being delivered at all.
LetsEncrypt Usage Statistics · Download List of All Websites using LetsEncrypt
Let’s Encrypt is a free open Certificate Authority.
Root Authority
SSL by Default Usage Statistics · Download List of All Websites using SSL by Default
The website redirects traffic to an HTTPS/SSL version by default.
HSTS Usage Statistics · Download List of All Websites using HSTS
Forces browsers to only communicate with the site using HTTPS.
nginx Usage Statistics · Download List of All Websites using nginx
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
GPTBot Disallow Usage Statistics · Download List of All Websites using GPTBot Disallow
The website has disallow rules for OpenAI GPTBot.
AI Bot
Last technology detected on 10th July 2025. We know of 14 technologies on this page and 20 technologies removed from iopen.net since 28th February 2013. Link to this page.
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