Free DDNS service that doesn't require an account.

Analyze various information about the website from an URL. IP, WHOIS, TLS, Cookie, etc. Similar to VirusTotal scan.

Farside collects a category of alternative libre front-end proxies to popular services. It tests their availability automatically and only show the working ones.

Detailed scan report for URL: domain/IP info, http transactions, links, javascript behavior analysis, etc.

VirusTotal has this public tool that shows detailed information about IP address/domain: historical Whois lookup and certificate log. Similar to crt.sh.

Like the now shut down RawGit, it's a free CDN for serving raw files from GitHub and other platforms.

curl ifconfig.io
curl ifconfig.me
curl ifconfig.co
curl ip.sb
curl icanhazip.com
curl myip.wtf/text
curl geofind.me # has geolocation info

port reachability test:

ifconfig.co/port/22

Disposable email service. Similar to temp-mail.org but doesn't have the Cloudflare traffic check, so it works even with VPN on.

Replicate lets you run machine learning models with a cloud API, without having to understand the intricacies of machine learning or manage your own infrastructure.

A search engine for the internet, in the 2000 style. You find interesting random small websites instead of see the same result from major search engines.

It also has a Tinder-like website recommendation engine where you can train it to find the website you're interested in. I already found several interesting personal blogs with this feature.

Impressively, the search engine is invented by one person, yet it already indexed more than 100M of webpages.

Generate unique tokens that notifies a webhook or an email address when accessed. Many tokens are supported, including DNS, URL, document, binary, etc. (Sort of like tracking pixel on websites but with a lot of other types of triggers)

A tool that helps you pore through papers. It is capable of explaining selected sentences and interactively answer questions about the paper. From my usage experience it's already quite helpful.

Colorize photos with text prompts.

With the decadent of AI Dungeon, I'm happy to see the spurt of many alternatives. This post give a list of alternative services:

• cohere: https://cohere.ai/
• AI21: https://www.ai21.com/
• NovelAI: https://novelai.net/

Pick up and play with:

• Holo AI: https://writeholo.com/
• Dreamily: https://dreamily.ai/

Instagram currently requires login to view public pages. This tool provides a proxy to view public content directly without having to log in first.

Search HackerNews and contents on linked webpages.

A nice provider that has a 4000+ day retention period. It is pretty fast. You pay for traffic, not recurring membership fees.

Use this link: https://billing.blocknews.net/signup/nyfg67vyu buy traffic at low price ($6/500G, $12/1T)

A comprehensive tts service that supports many languages, including mandarin, japanese, korean, russian, polish, etc.