45.139.104.176

Country / region

Germany · Hesse · Frankfurt am Main

IP type

Hosting / data center

Native / broadcast

Broadcast IP

Network

AS399979 Networking LLC

Reverse DNS

none

Devices seen in subnet

3

• −50

  Abuse reports (abuseipdb)

  Confidence 100%, 1187 reports in the last 90 days

  What it means

  Someone reported this IP to an abuse database (AbuseIPDB), typically for SSH brute force, port scanning or comment spam. The reporter may have seen a program on this machine, or a previous tenant.

  Which uses care

  Cares most: Social sign-up, Email sending

  Why it is weighted this way

  Counted at half the database's confidence. Sign-up scenarios care most: IPs with bulk-registration or credential-stuffing history are their first priority to block.

  Can it be fixed

  Reports age out; with no new reports for 90 days the score drops. If your machine is the one scanning, check for implanted software first.

• −45

  Blocklist hit: Spamhaus ZEN

  XBL — compromised host / open proxy; SBL — known spam source; SBL DROP — recommended to drop the whole range

  What it means

  A Spamhaus listing means this IP was confirmed sending spam, or the machine is compromised and being used as a relay.

  Which uses care

  Cares most: Email sending; Barely looks at it: AI services, Social sign-up, Streaming / short video, Gaming platforms

  Why it is weighted this way

  This is behavioural evidence, not a profile guess, so it is a hard cap and fatal for email. It carries little weight for scenarios that ignore mail reputation, such as AI services.

  Can it be fixed

  Fix the cause first (shut down the compromised service, remove malware), then request removal from Spamhaus; usually resolved within days.

• −25

  IP type: Hosting / data center

  Hosting / data center IPs are the main source of automated traffic

  What it means

  This IP sits in a hosting / datacenter range. Platforms assume real people browse from home or a phone, and machines live in datacenters.

  Which uses care

  Cares most: AI services, Social sign-up, Gaming platforms, Cross-border e-commerce; Barely looks at it: Email sending

  Why it is weighted this way

  The most basic signal there is: scrapers, bulk sign-ups and fake traffic overwhelmingly come from datacenters, so risk systems discount the whole range. It says nothing about what you did, only that you share the range.

  Can it be fixed

  The range type cannot be changed. What helps is not stacking other issues on top: stay off blocklists, close unneeded ports, avoid crowded exits.

• −15

  Proxy IP

  Only 1 data source flags it as a proxy; the evidence is limited, so it counts at half weight

  What it means

  A source marks this address as a proxy exit without saying whether it is a VPN, a datacenter proxy or something else.

  Which uses care

  Cares most: AI services, Social sign-up, Streaming / short video, Gaming platforms, Cross-border e-commerce

  Why it is weighted this way

  Only one source says so, so it counts at half weight.

  Can it be fixed

  These labels are usually applied to whole ranges and are hard to clear by behaviour; moving to an unlabeled range is the practical fix.

• −15

  Broadcast IP

  Range registered in US but used in DE (announced across borders)

  What it means

  The country the range is registered in differs from where it is actually used. Common when an international host uses a range registered in country A inside country B, or when a proxy vendor leases ranges.

  Which uses care

  Cares most: Streaming / short video, Gaming platforms; Barely looks at it: Email sending

  Why it is weighted this way

  Region-sensitive platforms (streaming, region-locked gaming) care most: they cross-check several geo databases and treat a mismatch as "wrong region". Little effect on scenarios that ignore region.

  Can it be fixed

  This is a registration attribute of the range and cannot be changed by the user. Platforms use different geo databases, so some may not notice at all.

• −12

  Blocklist hit: blocklist.de

  Listed by blocklist.de

  What it means

  This IP is on a public blocklist. Most lists record addresses that sent spam or took part in scanning or attacks.

  Which uses care

  Cares most: Email sending; Barely looks at it: AI services, Social sign-up, Streaming / short video, Gaming platforms

  Why it is weighted this way

  A single aggregate list is moderate evidence, so about a dozen points; the email scenario more than doubles it because receiving servers query these lists directly.

  Can it be fixed

  Every list has a removal process, provided the cause is gone; some delist automatically after a quiet period.

• −12

  Blocklist hit: s5h.net

  Listed by s5h.net

  What it means

  This IP is on a public blocklist. Most lists record addresses that sent spam or took part in scanning or attacks.

  Which uses care

  Cares most: Email sending; Barely looks at it: AI services, Social sign-up, Streaming / short video, Gaming platforms

  Why it is weighted this way

  A single aggregate list is moderate evidence, so about a dozen points; the email scenario more than doubles it because receiving servers query these lists directly.

  Can it be fixed

  Every list has a removal process, provided the cause is gone; some delist automatically after a quiet period.

• −12

  Blocklist hit: SpamRats

  Listed by SpamRats

  What it means

  This IP is on a public blocklist. Most lists record addresses that sent spam or took part in scanning or attacks.

  Which uses care

  Cares most: Email sending; Barely looks at it: AI services, Social sign-up, Streaming / short video, Gaming platforms

  Why it is weighted this way

  A single aggregate list is moderate evidence, so about a dozen points; the email scenario more than doubles it because receiving servers query these lists directly.

  Can it be fixed

  Every list has a removal process, provided the cause is gone; some delist automatically after a quiet period.

• −12

  Attack activity on record

  657 events recorded: Vulnerability Probing ×655, Login Attempt ×2

  What it means

  A commercial risk database recorded attacks from this IP: credential stuffing, bulk registration, comment spam and the like.

  Which uses care

  Cares most: Social sign-up, Email sending

  Why it is weighted this way

  Tiered by count rather than linear: 1 and 8 are about the same (someone used it), hundreds are a different story. The cap is kept low because the same record already feeds that vendor's overall score.

  Can it be fixed

  Same as abuse reports: stop the source and the record fades with time.

• −5

  No rDNS record

  No PTR record; IPs allocated by established carriers usually have one

  What it means

  This IP has no reverse hostname (PTR record). Addresses allocated by established carriers usually have one.

  Which uses care

  Cares most: Email sending

  Why it is weighted this way

  A few points only: a missing PTR is a weak "unknown origin" signal, not a stain. Email cares more, since receiving servers check it.

  Can it be fixed

  Most hosts let you set a PTR in the control panel; set it to a sensible hostname.

• +3

  No open ports

  Network scans have not observed any open service on this IP

  What it means

  Network scanners have not observed any open service on this IP.

  Which uses care

  Barely looks at it: AI services

  Why it is weighted this way

  A small bonus: a small attack surface means fewer chances of ending up in scanner and abuse databases. Not evidence of home broadband; a well-firewalled server looks the same.

  Can it be fixed

  An inherent attribute of the IP or its range; nothing a user can change short of a different IP.

• +4

  Very low observed sharing

  Only 3 devices observed in the same subnet

  What it means

  Only a few devices were observed in the same subnet. Your behaviour mostly represents you alone.

  Which uses care

  Cares most: Social sign-up, Streaming / short video, Cross-border e-commerce

  Why it is weighted this way

  A small bonus. This is an observation, not proof of true exclusivity.

  Can it be fixed

  An inherent attribute of the IP or its range; nothing a user can change short of a different IP.

Listed on 4 of 6 blocklists checked: Spamhaus ZEN, blocklist.de, s5h.net, SpamRats. 2 list(s) could not be queried this time.

• proxycheck.io 657 attack events recorded
• abuseipdb abuse confidence 100%, 1187 reports in 90 days

Each platform's internal risk labels

Platforms keep their own IP reputation data and ban records and do not publish them. No hit in public sources does not mean a platform has nothing on this IP.

Whether the IP is truly exclusive

Sharing is only the number of devices observed in the same subnet. It cannot show who else is using this exit right now, or what they are doing.

Which accounts this IP has been tied to

Account-to-IP links exist only inside each platform. Accounts previously banned on this IP are invisible to us.

Device, browser and behaviour

Risk systems look at IP + device fingerprint + behavioural rhythm together. A clean IP with an odd fingerprint or behaviour still gets blocked.

Whether the account profile matches the IP

When sign-up country, phone number, payment method, language or time zone disagree with the IP's location, platforms verify further. That is unrelated to IP purity.

• rdap
  261ms
• team-cymru
  114ms
• ip-api.com
  102ms
• proxycheck.io
  207ms
• abuseipdb
  221ms
• cloud-ranges
  18ms
• tor-exits
  18ms
• rdns
  559ms
• shodan-internetdb
  219ms
• dnsbl
  1564ms

Machine-readable versions of this report: JSON · plain text · 中文报告