DNSBL check

You may perform this lookup using the API and get the results as easy-to-parse JSON data.

Read more on the API at https://iamroot.tech/about/api (regarding authentication and rate limits, among other things), or give it a go right away using the 'try it' button.

GET

https://iamroot.tech/dnsbl-blacklist-checker/api/?host=121.254.128.0

copy try it

Log

001	+001	Resolved '121.254.128.0' to '121.254.128.0' in 0ms.
001	+000	Init of DNSBL list
001	+000	Running DNSBL checks
030	+029	Checking 121.254.128.0 against Spamhaus ZEN. Not listed (NotExistentDomain). 29ms
049	+000	Checking 121.254.128.0 against spamcop. Not listed (NotExistentDomain). 47ms
057	+027	Checking 121.254.128.0 against Barracuda Central. Not listed (NotExistentDomain). 26ms
099	+042	Checking 121.254.128.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 42ms
118	+069	Checking 121.254.128.0 against Spamrats!. Not listed (NotExistentDomain). 69ms
149	+031	Checking 121.254.128.0 against SORBS. Not listed (NotExistentDomain). 30ms
190	+091	Checking 121.254.128.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 90ms
190	+000	Checking 121.254.128.0 against SURBL (multi). Not listed (NotExistentDomain). 189ms
250	+101	Checking 121.254.128.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 100ms
256	+066	Checking 121.254.128.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 65ms
281	+091	Checking 121.254.128.0 against GBUdb. Not listed (NotExistentDomain). 90ms
281	+000	Done
281	+000	11 DNSBL's checked in 280ms.

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