
This is a comparison of online services which helps to prevent automated abuse of your site (such as automatic comment spam or registrations) by using a CAPTCHA to ensure that only humans perform certain actions.
While these services helps to reduce spam, they will not totally prevent it, since some humans add manually their comments.
These services usually shows a text in an image and visitors must type it to validate the form. To ensure accessibility, some services provide an audio CAPTCHA so that the visitors can listen to it, if they are unable to see the image.
A dedicated comparison has been created for services with
advertisements solutions combined:
http://socialcompare.com/en/comparison/captcha-and-advertisement-solutions
| Solve Media | Adyoulike | Captchas.net | Captch Me | NuCaptcha | OpenCaptcha | ProtectWebForm | reCAPTCHA | WebSpamProtect | |
|---|---|---|---|---|---|---|---|---|---|
| Description | Adyoulike enables a new way of making money using Captchas. Their technology allows you to change the traditional Captcha, difficult to read by an advertising Captcha, nice, easy to read and remunerative. | Captchas.net servers provides CAPTCHA images and audio files you can use in html-forms to prevent robots from filling it. | NuCaptcha provides the only intelligent captcha product on the market today | reCAPTCHA is a free service that helps to digitize books, newspapers and old time radio shows while preventing automatic form filling by robots. | WebSpamProtect.com allows you to add a verification image to your web site forms to protect them against spam robots. The service also provides full contact form management. | ||||
| Screenshot | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
| Distinctive features | The Captcha is served as an Ad, so you can get money while securing your forms. | Behavioral Analysis System that adjusts security on the fly- brandable, SLA, advertising, fully customizable. | Does not require any regsitration | The service helps to digitize books or audio shows | Online control panel to customize available captcha, or to create full contact forms. | ||||
| Multi-language | Yes English, French, German, Spanish, Italian, Japanese | Yes English, French | Yes Audio pronunciation: English, German, Italian, French, Dutch | No French | Yes Fully Localizable | No | No | Yes English, German, French, Dutch... (8 languages + custom) | No |
| Visual customization | Yes | Yes Size, color custom design for audio or to refresh the captcha | Yes Skinless version available to fully customize. | Yes size | Yes | Yes 4 themes + custom | Yes | ||
| Audio captcha | Yes | No | Yes | No | Yes | No | Yes | Yes | Yes |
| Code sample | PHP, ASP, Perl, Python, JSP, Ruby | .Net, PHP, Java, various plugins | PHP | PHP, ASP | PHP, ASP, Java/JSP, Perl... | PHP, ASP, Perl | |||
| Wordpress plugin | Yes | Yes | Yes | No | Yes | Yes | Yes | ||
| Compatible SSL | Yes | Yes | Yes | No | Yes | Yes for premium accounts only | |||
| Notable web site using it | Yes, various, ISP's, VAST and VPAID compliant, | ||||||||
| Pricing | |||||||||
| Free plan | Yes | Yes | Yes | Yes | Yes | Yes | Yes | ||
| Pricing | 120 euros per year to remove captchas.net logo | PRO, ENTERPRISE AND ENGAGE PRODUCTS AVAILABLE FOR SITES WITH MORE THAN 25,000 SOLVED CAPTCHAS PER MONTH. | Premium accounts enables SSL access, more customization, and full
contact forms.
| ||||||
| Additional | |||||||||
| Website | http://www.solvemedia.com/ | http://www.adyoulike.com/ | http://captchas.net/ | http://www.captchme.com/ | http://www.nucaptcha.com | http://opencaptcha.com/ | http://www.protectwebform.com/ | http://recaptcha.net/ | http://webspamprotect.com/ |
| http://twitter.com/solvemedia | http://twitter.com/Adyoulike | http://www.twitter.com/captchme | |||||||
| Like |
Public
Public It's free and fast to publish data into original tables
Create a table
More comparisons
Text Editors for OSX
Browser Font support comparison
Captcha and Advertisement solutions
Customer feedback software
Javascript Online Rich Text Editors
Text Editors for OSXComments
Leave a comment