Anti-Spam by CleanTalk

Anti-Spam module by CleanTalk to protect your Drupal sites from spambot registration and spam comments publications thru comment and contact forms.

Invisible anti-spam without CAPTCHA, questions, puzzles, counting animals, math and etc. Just install and forget.

CleanTalk is a SaaS spam protection service for Web sites.

CleanTalk uses protection methods which are invisible for site visitors.
Using CleanTalk eliminates needs in a CAPTCHA, questions and answers, and other methods of protection, complicating the exchange of information on the site.

The module is tested and ready to protect against spambots for Webform.

Anti spam module info.

CleanTalk is an anti-spam protection that protects login, comments forms all at once. After installation you will forget about spam, CleanTalk module will do all the work. You won't have to deal with spam, CleanTalk will do this for you automatically. CleanTalk is a transparent anti-spam protection, we provide detailed statistics of all entering comments and logins. You can always be sure that there are no errors. We have developed a mobile app for you to see anti-spam statistics wherever.
We have developed antispam for Drupal that would provide maximum protection from spambots and you can provide for your visitors a simple and convenient form of comments/registrations without annoying CAPTCHAs and puzzles. Used to detect spam multistage test that allows us to block up to 100% of spambots. The anti-spam method offered by CleanTalk allows switching from the methods that trouble the communication (CAPTCHA, question-answer etc.) to a more convenient one.

Low false/positive rate
This MOD uses multiple anti-spam tests to filter spambots with lower false/positive rate as possible. Multiple anti-spam tests avoid false/positive blocks for real website visitors even if one of the tests failed.

Spam attacks log
Service CleanTalk (this plugin is a client application for CleanTalk anti-spam service) records all filtered comments, registration and other spam attacks in the "Log of spam attacks" and stores the data in the log up to 45 days. Using the log, you can ensure reliable protection of your website from spam and no false/positive filtering.

Real-Time Email Address Existence Validation
It is very important to be sure that the user used his real email address. Spambots very often use fake email addresses, i.e. which addresses do not exist. Non-existing email addresses also entail several other problems for website owners:

• You can never contact them by email,
• The client will never receive any notifications from you (account activation letter, password recovery, email distribution, notifications, etc.),
• If you use email marketing for your clients, then a large number of nonexistent emails in the mailing list may result in your IP address being added to various blacklists of email servers.

CleanTalk will check email addresses for existence in real time.

Private blacklists
Automatically block comments and registrations from your private black IP/email address list. This option helps to strengthen the protection from a manual spam or block unwanted comments from users. You can add not only the certain IP addresses but also a separate subnet to your personal blacklist.

Blocking comments by "stop words"
You can block comments which contain "stop words" to enhance spam filtering and messages with obscene words blocking. You can add particular words or phrases.

Blocking users by country
Automatically block comments and registrations from the countries you have set a ban for. This option is useful in cases of manual spam protection and for protection enhancement. If your site is not intended for an international audience and you do not expect comments/users from other countries.

The CleanTalk is premium anti-spam for Drupal, please look at the pricing. We try to provide anti-spam service at the highest level and we can not afford to offer a free version of our service, as this will immediately affect the quality of providing anti-spam protection. Paying for a year of anti-spam service, you save a lot more and get:

• Up to 100% protection against spambots.
• Time and resources saving.
• More registrations/comments/visitors.
• Protect several websites at once at different CMS.
• Easy to install and use.
• Traffic acquisition and user loyalty.
• 24/7 technical support.
• Clear statistics.
• No captcha, puzzles, etc.
• Free mobile app to control anti-spam function on your website.

How to protect sites from spambots without CAPTCHA?

The most popular method is CAPTCHA - the annoying picture with curved and sloping symbols, which are offered to the visitor to fill in. It is supposed that spambots won't discern these CAPTCHA, but a visitor will. CAPTCHA provokes great irritation, but if one wants to speak out, he has to fill in these symbols time after time, making mistakes and starting once again. Sometimes CAPTCHA reminds doodle 2x year old child. For users with vision problems, captcha is just an insurmountable obstacle. Users hate captcha. Captcha for users means "hate". Unreadable CAPTCHA stops about 80% of site visitors. After 2 failed attempts to bring it up to 95% reject further attempts. At the sight of CAPTCHA and after input errors, many visitors leave the resource. Thus, CAPTCHA helps to protect the resource both from bots and visitors. CAPTCHA is not a panacea from spam. Doubts Concerning the need for CAPTCHA?

Additional features of Anti Spam by CleanTalk.

• Online, daily and weekly anti-spam reports traffic VS spam.
• Apps for iPhone, Android to control anti-spam service, comments, signups, contacts. With traffic and spam statistics for last 7 days.
• Anti-spam apps for most popular CMS on cleantalk.org.

How it works.

Messages or registration requests are sent to the CleanTalk cloud, data is tested with several methods on the cloud, then the site receives a response decision - to approve or deny the message/registration.

How to use.

1. Get access key on CleanTalk.org;
2. Install CleanTalk module and put access key into its settings.

Spam FireWall.

CleanTalk has an advanced option "Spam FireWall". This option allows blocking the most active spambots before they get access to your website. It prevents spambots from loading website pages so your web server doesn't have to perform all scripts on these pages. Also, it prevents scanning of pages of the website by spambots. Therefore Spam FireWall significantly reduces the load on your web server. Spam FireWall also makes CleanTalk the two-step protection from spambots. Spam FireWall is the first step and it blocks the most active spambots. CleanTalk Anti-Spam is the second step and checks all other requests on the website at the moment of submitting comments/registers etc.

How Spam FireWall works.

• The visitor enters to your website.
• HTTP request data is checked against the nearly 5.8 million identified IP spambots.
• If it is an active spam bot, the bot gets a blank page, if it is a visitor then they receive the site page. This is completely transparent to the visitors.

All the CleanTalk Spam FireWall activity is being logged in the process of filtering.

Private blacklist for SpamFireWall
It allows you to add individual IP addresses and subnets to SpamFireWall. It blocks the attacks from IP addresses which are not included in the SFW base yet. This option can help to block HTTP/HTTPS DDoS, SQL, brute force attacks and any others that made it through the HTTP/HTTPS. You can add not only the certain IP addresses but also a separate subnet to your personal blacklist.

Spam FireWall DDoS Protection (Experimental option).

Spam FireWall can mitigate HTTP/HTTPS DDoS attacks. When an intruder makes GET requests to attack your website, Spam FireWall blocks all requests from bad IP addresses. Your website gives the intruder a special page with a description of DDoS rejection instead of the website pages. Therefore Spam FireWall can help to reduce CPU usage on your server.

How can I test anti-spam protection?
Do a test registration or post a test comment using the blacklisted e-mail stop_email@example.com.

Should I use other anti-spam extensions?
Use other anti-spam solutions not necessarily, because CleanTalk stops up to 100% of spambots. In some cases, several anti-spam hooks can conflict, so it will be better using just one extension.

Can I add exclusions for some pages of my sites
Yes, you can. Use this guide to add exclusions for some pages of your web-site.

Installation

Use our installation guide for your Drupal version:

• Drupal 7
• Drupal 8
• Drupal 9

Do a test registration using this blacklisted e-mail: stop_email@example.com.
Please go to Dashboard to see the anti-spam status, add new websites or manage existing ones!

Please check your e-mail to get account password.