
BuiltWith
Wappalyzer
WhatRuns
Elucify
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OPSWAT
BuiltWith
HackerOneA great tool to help you discover the technology being used by a variety of websites. I was impressed that upon signing up that I had full access to a free list of leads.
Based on our record, BuiltWith should be more popular than HackerOne. It has been mentiond 162 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Evan You, creator of Vue.js, is a prime example. Vivek Nair, Co-Founder of BotGauge, notes that You โcreated something that addresses real developer needs with clean logic and thoughtful design.โ Vue.js powers over 1.5 million websites in 2025, a testament to its scalability and developer trust, as reported by BuiltWith. Youโs ability to build a framework independently, without corporate backing, underscores his... - Source: dev.to / about 1 year ago
There exist websites like https://builtwith.com so answer to your question is yes. - Source: Hacker News / over 1 year ago
BuiltWith says the web client is NextJS which is interesting as ChatGPT made a big switch away to Remix IIRC. https://builtwith.com/?https%3a%2f%2fclaude.ai%2fnew. - Source: Hacker News / almost 2 years ago
Also, wow that is an obsene amount of libraries they use: https://builtwith.com/?https%3a%2f%2fspectrum.ieee.org%2fdisney-robot-2668135204. - Source: Hacker News / about 2 years ago
I would say run both sites through https://builtwith.com/ to get what all they used in the building process. Source: over 2 years ago
Mozilla has a great security team and they have recently moved to HackerOne https://hackerone.com/. I don't understand where you get the basis for saying that mozilla employees don't work on weekends. Any facts or substantiation or just speculation? Source: about 3 years ago
You pick a target, for example hackerone.com. Source: over 3 years ago
There are many resources online nowadays to learn security. You can do challenges on https://root-me.org, https://www.hackthebox.com/, https://overthewire.org/wargames/, etc. You can participate in security competitions (CTFs), see https://ctftime.org for a list of upcoming events. And finally if you are more interested in web security you can look for bugs on websites and get paid for it by https://hackerone.com... Source: over 3 years ago
Do Bug bounty on https://hackerone.com. You'll get paid if you really know how to hack and write a report.alot oh cash rains in the thousands if you can pwn a computer that is in scope .plus its legal as long as you stay in scope. Source: over 3 years ago
Depending on what type of cybersecurity you want to do, there's other ways to set yourself apart as well. Another way I'd get confidence in someone's abilities is if they've made bug bounties on bugcrowd.com or hackerone.com, for example. Even then, at big companies those people still have to go through HR just like everybody else. Source: almost 4 years ago
Wappalyzer - Wappalyzer is a technology profilers and leads data provider. Create lists of websites and contacts that use certain technologies.
Acunetix - Audit your website security and web applications for SQL injection, Cross site scripting and other...
WhatRuns - Extension that helps you identify technologies used on any website at the click of a button.
Trustwave Services - Trustwave is a leading cybersecurity and managed security services provider that helps businesses fight cybercrime, protect data and reduce security risk.
Elucify - A completely free software tool that uses crowdsourced data to find business email addresses
Forcepoint Web Security Suite - Internet Security