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Self-Hosted Anti-Spam in 2026: Why Proof-of-Work CAPTCHAs Are Not Enough and What On-Prem Protection Needs
TL;DR. Self-hosted protection is having its moment: Cap has 8,013 GitHub stars after 21 months, ALTCHA’s npm packages are downloaded 1.49 million times a month, Anubis collected 23,427 stars in a year and a half. Every one of these tools runs on your server and keeps your users’ data at home. Every one of them…
FEEDBACK LOG
The Latest
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About the email “[CleanTalk] Access key used on multiple websites”
Recently, some of our users received an email with the subject: “[CleanTalk] Access key used on multiple websites” The message informed you that your CleanTalk Access key was detected on more than one website within a 24-hour period and recommended changing the key if the activity looked suspicious. The notification looked like this: Subject: [CleanTalk]…
![About the email “[CleanTalk] Access key used on multiple websites”](https://blog.cleantalk.org/wp-content/uploads/2024/10/attention1-1.png)
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Our Client’s Review: BRNDTIME
We’re happy to share feedback from one of our valued clients — Christophe Thielens, founder of BRNDTIME. At CleanTalk, we truly appreciate hearing how our anti-spam solution helps agencies and businesses keep their websites clean, fast, and user-friendly. Reviews like this motivate our team to continue improving our technology and delivering invisible, reliable protection against…
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Great plugin & support
We continue to share stories of our clients and the new one is brought by Sabine from sabineboogaard.nl. To me this is the best security plugin. There are many options (like easily block IP-addresses and countries) and it’s very easy to monitor what’s happening on the website. I also love the automatic scans and reports. The…
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Spam Bot phil9982@bestaitools.my — How to Block It and Stop Website Attacks
A sophisticated spambot operating under the email address phil9982@bestaitools.my became one of the most active threats in late 2025. Since its discovery on November 10, 2025, this automated attacker has spammed 11,428 websites, with the last recorded activity being December 15, 2025. The CleanTalk anti-spam service currently blocks approximately 9,048 requests per day from this…
