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Identifying Spam Submissions Without Captchas
Spam comments can be a nuisance for website owners, and Captchas - used to distinguish humans from bots - can be frustrating for legitimate users. However, there are alternative methods for blocking spam that don't involve the use of Captchas.
One effective approach is to implement honeypot input fields. These fields are invisible to users, making them unlikely to be filled in by humans. However, spambots, which often work automatically by submitting data to all available fields, often fill these honeypots. If a submitted form includes data in honeypot fields, it can be flagged as spam.
A more advanced technique is described in a blog post referenced in the answer. This method involves the use of hashed field names and a complex process for validating submissions. However, the answer suggests that a simplified version of this method using only honeypot fields could be equally effective.
By using honeypot input fields, website owners can block comment spam without resorting to Captchas, thus providing a more user-friendly experience without compromising security.
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