Sites like ctfchallenge.co.uk

UK Casinos, a review and comparison site ranking online casinos outside the GamStop self-exclusion scheme by payout speed

Osmedeus, an open-source workflow orchestration engine using declarative YAML to automate security reconnaissance and vulnerability scanning tasks

The Pink Triangle Trust is a UK charity blog on humanism and LGBT equality, edited by Barry Duke

Linux, security and networking admin blog by Tomas, with posts on Samba, Windows 11 and Red Hat certification study

A personal technology blog by Vidar Hokstad on software libraries, code reuse, AI-written code and supply-chain risk

The main pages describe a Spanish rock, blues and soul band, but the later posts are spam casino articles, so the site's subject is mixed. Writing the sentence about the band's identity as the homepage presents it, with the casino spam bein

Julien Cretel's personal site on Go programming, web security research, conference talks and freelance security testing services

Blog and video tutorials by Jayant Tripathy on building with Azure, AWS and .NET Core

Calomel.org is an open source reference site of Unix and BSD server tutorials and configuration guides, including DNS, NTP, Samba and Fvwm2 setups

A personal site of Rakesh Mane, a bug bounty hunter, about web and browser security research and disclosed CVEs

Ctrl blog by Daniel Aleksandersen, an Oslo developer's blog of essays, tutorials and technical notes on Windows, Edge and security

Personal web site by Bruce Barnett collecting Unix and Linux tutorials, shell scripting guides and useful technical incantations

adminForge is a German-language site of self-hosted open source service guides, Linux admin tutorials, news, an NTP time server and an Android app

Security researcher Scott Helme's personal blog and site on web security, security headers and incident analysis, plus media and speaking pages

A free, extensible text-based IRC chat client, WeeChat, developed by a volunteer group of open-source programmers

TecMint, a Linux how-to blog with tutorials and guides by Ravi, founded in 2012

A live RAP and exists tracker for Pet Simulator 99 items, with an API and trade and enchant tools

Open source framework for managing Zsh shell configuration, with bundled plugins, themes and helper functions, maintained by a community

A social community site for Love Live! fans to share adventures, posts and wiki entries about the franchise

A blog on security research and reverse engineering, including RSA cryptography posts, by independent researcher Osanda

A community database and fan site for the BanG Dream! Girls Band Party game, covering characters, cards, and members' profiles

A programming blog with coding tutorials, DSA problems and courses on C, C++, HTML and algorithms, run by TheJat

A security-focused, compartmentalizing desktop operating system based on Xen, with project news, hardware compatibility list and documentation

Oh My Posh documentation for a cross-shell prompt theme engine that customizes terminal prompts, with installation and configuration guides

The Slackware Linux Project, a site documenting the Slackware Linux distribution with downloads, installation help, package lists, changelogs, FAQ and a book

OSINT Techniques is a resource site on open source intelligence and social media investigation, with a blog, tool lists and FAQs by Michael Bazzell

Privacy Guides is a non-profit website publishing digital privacy news, recommendations, and how-to guides for consumers and technology users

Experimental History, a Substack newsletter on psychology and science by experimental psychologist Adam Mastroianni, published every other Tuesday

Viktor's personal blog on search engines, web tools, self-hosting and small-web projects, with posts in English

Personal blog by EdOverflow, a web developer and security researcher, writing on bug bounty, open source and web security

DNS for Family is a free DNS filtering service that blocks adult websites and enforces safe search on major sites

School Idol Tomodachi is a fan-run resource website for players of the LoveLive! School Idol Festival mobile game, with card, idol and map databases

Doyler.net, a blog by Ray Doyle on information security topics including penetration testing walkthroughs, tutorials, vulnerabilities and exploits

A community database and progress tracker for the game IDOLM@STER Cinderella Girls Starlight Stage, with player profiles, maps and a wiki

Neovim, a Vim-based open-source text editor project with extensible Lua plugins, documentation and developer resources