Nowadays we can able to see word verification while creating new account, to post a comment, to send the message etc. Its an unreadable form. When we enter that characters correctly then only able to do further more actions. Its surely irritating to ours, due to this we don't comment even if we like to comment, but it have some features. We can do word verification by providing the correct answer. For example some word verifications are like this 12 + 3 = ? or it unreadable form. Word verification is used to determine that you are a human and not a program or machine. In blog, word verification is used while comment, because to avoid spam. This is the reason to put word verification. Words in word verification is difficult for humans to read, but impossible for automated character recognition systems to read.That is the need for word verification.

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