IP Address Blacklist Check compared with MXToolbox Blacklist Check, Sender Score and Cisco Talos| IP地址黑名单检查 | MXToolbox Blacklist Check | Sender Score | Cisco Talos |
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| What is assessed: Any public IP address, checked against multiple DNS-based blocklists (DNSBL). | What is assessed: An IP address or host checked against blacklists. The same service also provides SMTP testing, DNS, SPF and PTR record lookups. | What is assessed: The reputation of a sending IP address as a score from 0 (worst) to 100 (best). It ranks an IP against other IPs, much like a percentile. | What is assessed: IP addresses, websites and URLs. Email reputation depends on the IP of an email server, while web reputation depends on the whole domain and its IP addresses. |
| 数据基础: Queries widely used DNSBLs, and the report states which list flagged the address. | | 数据基础: A proprietary Validity algorithm using complaints, spam traps and deliverability data from the Validity Data Network, a cooperative of more than 80 mailbox and security providers. Scores are usually based on a rolling 30 day average. | 数据基础: Cisco threat intelligence telemetry, refreshed every 3 hours. |
| Output and follow-up: A consolidated report listing each blacklist, whether the IP is listed, and links to delisting instructions when available. Some lists automate removal and others review requests manually. | | Output and follow-up: A single number plus component indices: complaints, volume, external reputation, unknown users and rejected mail. | Output and follow-up: A reputation result, and a ticket can be submitted when the owner believes a conviction or categorization is wrong. Domain and IP results can differ. |
| Access and cost: Free to use, and it requires JavaScript for live checks. | Access and cost: A free version is available. Blacklist and DNS or domain health monitoring belong to paid plans. | | |