| Similarity | Rank | |
|---|---|---|
| bot | 0.853 | 25162 |
| spammers | 0.804 | 27484 |
| crawlers | 0.768 | 41987 |
| Spammers | 0.767 | 95833 |
| Bots | 0.765 | 81754 |
| robots | 0.745 | 10315 |
| spamming | 0.744 | 30603 |
| spam | 0.739 | 7261 |
| spiders | 0.735 | 15834 |
| botnets | 0.724 | 88730 |
| spammy | 0.722 | 46751 |
| spams | 0.719 | 96925 |
| webmasters | 0.711 | 23414 |
| spammed | 0.707 | 72852 |
| trojans | 0.694 | 71682 |
| CAPTCHA | 0.685 | 74705 |
| trackbacks | 0.685 | 99400 |
| captcha | 0.685 | 72786 |
| popups | 0.683 | 65411 |
| phishing | 0.682 | 29271 |
| botnet | 0.682 | 62942 |
| spammer | 0.681 | 46811 |
| urls | 0.679 | 54950 |
| pop-ups | 0.678 | 45240 |
| URLs | 0.668 | 17764 |