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DNS Stuff

Check/Look up:

• DNS Reports - Finds lots of common DNS problems.
• DNS Timing - See how long your DNS servers take to respond.
• WHOIS Lookup - Lists contact info for a domain/IP
• Reverse DNS lookup - See if your IP has a reverse DNS entry.
• DNS lookup - Look up a DNS record (A, MX, NS, SOA, etc.)
• Spam database lookup - See if a mail server is listed in 150+ spam databases.
• IPWHOIS Lookup - Lists contact info for an IP (or domain).
• Abuse Lookup - Finds abuse contact for a domain
• Tracert - Traces the route packets take to this host.
• Ping - Shows how long it takes for packets to reach a host.
• WHOIS Search - True WHOIS search
• IP Routing Lookup - Shows IP routing info, from RADB.
• ISP cached DNS lookup - Check cached DNS at major ISPs.
• NetGeo IP Lookup - Shows (outdated) geographical location of an IP.
• URL deobfuscator - De-obfuscates confusing URLs.
• Free E-mail Lookup - Is an E-mail address a known free one?
• E-mail Test - Are there problems sending mail to a user or domain?
• CIDR/Netmask Lookup - Calculates CIDR ranges (e.g. 192.168.112.0/24).
• CSE HTML Validator - Finds HTML errors in websites.
• Decimal IPs - Converts a decimal IP (e.g. 2130706433) into an IP.
• ... and more.

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