All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool. Input a domain name or IP Address or Host Name. Links in the results will guide you to other relevant tools and information. And you'll have a chronological history of your results.
If you already know exactly what you want, you can force a particular test or lookup. Try some of these examples:
(e.g. "blacklist: 127.0.0.2" will do a blacklist lookup)
| Command |
|
Explanation |
| blacklist: |
|
Check IP or host for reputation |
| smtp: |
|
Test mail server SMTP (port 25) |
| mx: |
|
DNS MX records for domain |
| a: |
|
DNS A record IP address for host name |
| spf: |
|
Check SPF records on a domain |
| txt: |
|
Check TXT records on a domain |
| ptr: |
|
DNS PTR record for host name |
| cname: |
|
DNS canonical host name to IP address |
| whois: |
|
Get domain registration information |
| arin: |
|
Get IP address block information |
| soa: |
|
Get Start of Authority record for a domain |
| tcp: |
|
Verify an IP Address allows tcp connections |
| http: |
|
Verify a URL allows http connections |
| https: |
|
Verify a URL allows secure http connections |
| ping: |
|
Perform a standard ICMP ping |
| trace: |
|
Perform a standard ICMP trace route |
| dns: |
|
Check your DNS Servers for possible problems New! |
| |
|
|
| Other tools |