104.28.165.251 is blacklisted, reported for spam, and brute force attacks
1 brute force attacks, last activity .
Status
| Service | Status | Updated | Next steps |
|---|---|---|---|
| Anti-Spam | Blacklisted | Oct 24, 2026 18:42:46 | Get Anti-Spam Plugin or API |
| SpamFireWall | Not in list | Oct 24, 2026 18:42:46 | |
| Security FireWall | Not in list | - | Get Security Plugin |
| Block Lists | Data loading | - | Use via API, Files & DNSBL |
| Type of attacks | Spam, BruteForce | ||
Abuse reports
| There are currently no abuse reports for this email/IP. Report Abuse activity |
Details
| Network | 104.28.164.0/22 parent network: 104.28.160.0/20 |
|---|---|
| Network Spam Rate | 8% |
| DNS name | - |
| AS number | 13335 |
| Org name | Cloudflare, Inc. |
| Location | Narita, Chiba, Japan |
| IP Geolocation | lat: 35.7863; lon: 140.3197 |
| | |
| Address | 101 Townsend Street CA 94107 San Francisco UNITED STATES |
| Phone | +1-650-319-8 |
| Website | cloudflare.com |
| AS spam rate | 0.55% |
| Websites hosted on 104.28.165.251 | Data loading |
Brute Force attacks log
| Date/time (GMT) | IP | Nickname | Event |
|---|---|---|---|
| Oct 03, 2026 16:25:03 | 104.28.165.251 | mark-hill@for***** | invalid_email |
104.28.164.0/22 spam active IP addresses
| # | Address (DNS name) | Detected | Last seen | Attacked sites |
|---|---|---|---|---|
| 1 | 104.28.165.176 | Nov 18, 2025 12:01:58 | Oct 30, 2026 15:32:02 | 17 |
| 2 | 104.28.165.234 | Nov 25, 2025 06:54:11 | Oct 30, 2026 02:42:25 | 18 |
| 3 | 104.28.166.85 | Oct 18, 2026 15:52:57 | Oct 30, 2026 00:24:41 | 13 |
| 4 | 104.28.166.11 | Jan 15, 2026 17:45:20 | Oct 28, 2026 23:58:10 | 120 |
| 5 | 104.28.165.168 | Dec 11, 2019 15:36:02 | Oct 27, 2026 13:40:01 | 24 |
| 6 | 104.28.165.172 | Dec 22, 2019 03:03:20 | Oct 27, 2026 11:01:08 | 24 |
| 7 | 104.28.165.170 | Nov 09, 2025 09:05:40 | Oct 27, 2026 10:58:38 | 20 |
| 8 | 104.28.166.7 | Nov 26, 2025 07:08:20 | Oct 27, 2026 08:03:01 | 18 |
| 9 | 104.28.165.251 | Dec 24, 2025 08:29:00 | Oct 24, 2026 23:42:46 | 20 |
| 10 | 104.28.165.167 | Nov 11, 2019 17:37:18 | Oct 24, 2026 23:30:19 | 22 |
104.28.165.251 spam and brute force activity on date
| # | Date | IP | Frequency |
|---|
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Why is this 104.28.165.251 contacting my website?
This 104.28.165.251 may appear due to bots, crawlers, spam submissions, or automated attacks.
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Is this 104.28.165.251 safe?
It depends on the IP address status. If it is green and marked as "Not in lists", it is considered safe. If it is "Blacklisted" and shown in red, it means the IP has been involved in abusive activity such as spam, phishing, scam attacks, password brute-force attempts, or hacking attempts.
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How do I block 104.28.165.251?
Use one of our Anti-Spam plugins, the Security plugin, the Anti-Spam API, or the Block Lists API. If you are not sure which option to choose, please contact our support team: https://cleantalk.org/my/support/open
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Is this a bot or hacker?
It depends on the activity of the 104.28.165.251. If the Anti-Spam or Security plugins stop the attacks, it is most likely a bot. If they do not stop them, there is a high probability that it is a human attacker.
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What does "Blacklisted" mean?
It means the 104.28.165.251 is currently performing various types of spam and security attacks on websites.
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