Project Euler
LeetCode
Exercism
Codewars
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CodeSignal
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VisitorType
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Matomo
VisitorType is one snippet that tells humans, AI crawlers, and AI assistants apart — verified by IP, not just the user-agent string anyone can spoof. Once you know who's really visiting, you can act on it: fire your ad pixels for humans only so you stop paying to retarget bots, serve AI crawlers structured facts about your pages, and finally see the AI referrals GA4 buries in "Direct" (the ones that convert ~4.4× organic search). It's not another dashboard that just watches your traffic — it's the action layer that lets you do something about it. Free during early access, and early signups are grandfathered at Pro level for good.
Project Euler VisitorTypeNo VisitorType videos yet. You could help us improve this page by suggesting one.
VisitorType's answer:
VisitorType doesn't just detect AI traffic — it verifies it and lets you act on it. Every visit is classified (human, AI crawler, AI search bot, assistant fetch, or agentic browser) and claimed bot identities are checked against the vendor's published IP ranges, so a fake "GPTBot" gets caught instantly. Then a GTM-style rules engine fires different tags per visitor type: ad pixels for humans only, clean analytics, canonical facts for AI. On our own site, ~2/3 of verifiable AI-bot claims turned out to be impostors — most tools would have counted them as real.
VisitorType's answer:
A solo founder kept seeing "Direct" traffic that wasn't people — it was ChatGPT reading pages for users, crawlers training models, and scrapers wearing Googlebot's name. Existing analytics couldn't see any of it, and tag managers treated it all as human. VisitorType was built to answer one question honestly — who is actually on your site? — and then let you serve each visitor type differently. The site runs its own product: every claim on it comes from our own dashboard.
VisitorType's answer:
Detection-only tools tell you bots visited; tag managers assume every visitor is human. VisitorType is the only layer that does both: verified classification plus per-type tag firing, with server-side collection that catches the crawlers JavaScript analytics can never see. It's privacy-first by construction — no cookies, no fingerprinting, GPC honored, EU-hosted — and installs in five minutes via one snippet, a WordPress plugin, or a Shopify app embed.
VisitorType's answer:
Marketers and site owners who suspect their analytics no longer reflect reality: marketing teams at SMB SaaS and content sites, digital agencies reporting to clients, and WordPress/Shopify owners. No developer required — if you've used Google Tag Manager, you already know the mental model.
VisitorType's answer:
A dependency-free JavaScript snippet (~3 kB) for browsers, server-side adapters for WordPress, Shopify, Cloudflare Workers, and Node, and a detection engine that combines a curated agent registry, behavioral signals, and daily-refreshed IP-range verification from vendor-published sources — all EU-hosted with a cookieless, no-fingerprinting architecture.
VisitorType's answer:
We're in early access ahead of our public launch — current users are digital marketing agencies, WordPress and Shopify site owners, and SaaS marketing teams Early-access accounts keep Pro-level features free; case studies will be published as customers opt in
Based on our record, Project Euler seems to be more popular. It has been mentiond 415 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.
Let's hope this is going to help me solve some more Project Euler [1] problems! [1] https://projecteuler.net/. - Source: Hacker News / 4 months ago
Https://projecteuler.net/ for "Thinker" brain food. (it still has the issue of not being a pragmatic use of time, but there are plenty interesting enough questions which it at least helps). - Source: Hacker News / 7 months ago
I have a Project Euler (https://projecteuler.net/) account. Though I do not register at all on the leader board I will sometimes work obsessively on a problem just to make one of the level icons light up for me. There is not really competition just a tiny reward. - Source: Hacker News / 9 months ago
I do hobby programing. It is sometimes to create something (supposedly) useful. Lately though it is more discovery and a little math like. I enjoy Project Euler (https://projecteuler.net/. Recently I have been playing with superpermutations (https://projecteuler.net/) and pencil and paper is useful but filling lots of paper with lots of numbers is not that fun. - Source: Hacker News / over 1 year ago
As pointed out in a sibling comment, it appears that quote only shows up if you're logged in, but assuming you have an account and are logged in, it's on the homepage (https://projecteuler.net/), second paragraph under the following heading: > I learned so much solving problem XXX, so is it okay to publish my solution elsewhere? > It appears that you have answered your own question. There is nothing quite like... - Source: Hacker News / over 1 year ago
LeetCode - Practice and level up your development skills and prepare for technical interviews.
Google Tag Manager - Google Tag Manager helps make tag management simple, easy and reliable by allowing marketers and webmasters to deploy website tags all in one place.
Exercism - Download and solve practice problems in over 30 different languages.
DataOrganizer.io - AI-powered e-commerce analytics in one dashboard
Codewars - Achieve code mastery through challenge.
Matomo - Matomo is an open-source web analytics platform