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How often do submission forms experience spam attacks ?
What is the best solution to mitigate this issue ?
are there differences among captchas ?
Thanks
I tried many different solutions and in practice CleanTalk proved to be the most efficient solution for the sites we built.
If you need free, use cloudflare Turnstile (simple cloudflare Turnstile plugin) or HCAPTCHA (official plugin).
If your okay with paying, check out cleantalk.org and oopspam.com
Clean talk will be a little cheaper and works well, OOPSpam has more advanced options
I’ve been using OOPSpam for over a year and don’t use any CAPTCHAs
[Bots are better than humans at cracking ‘Are you a robot?’ Captcha tests, study finds](https://www.independent.co.uk/tech/captcha-test-bots-better-humans-b2389998.html)
All the time. It is very common for forms to get spammed.
If you don’t have spam protection on your form, start with Turnstile (you don’t need this if your site is already behind Cloudflare, just enable Bot Fight Mode).
CAPTCHA solutions work more or less the same way. Usually, as your site gets more popular, you’ll notice that they don’t work, because it’s easy to get around them these days with third-party bypassing tools like 2Captcha.
If you have a budget, check out OOPSpam. It works on the server side, unlike CAPTCHA alternatives that work on the client side and are thus open to manipulation.