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=204.217.156.0

copy try it

Log

001	+001	Resolved '204.217.156.0' to '204.217.156.0' in 0ms.
001	+000	Init of DNSBL list
001	+000	Running DNSBL checks
055	+054	Checking 204.217.156.0 against Spamhaus ZEN. Not listed (NotExistentDomain). 54ms
085	+030	Checking 204.217.156.0 against Barracuda Central. Not listed (NotExistentDomain). 29ms
129	+044	Checking 204.217.156.0 against spamcop. Not listed (NotExistentDomain). 44ms
582	+453	Checking 204.217.156.0 against Spamrats!. Error: ServerFailure. 452ms
620	+038	Checking 204.217.156.0 against SURBL (multi). Not listed (NotExistentDomain). 38ms
672	+052	Checking 204.217.156.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 51ms
731	+059	Checking 204.217.156.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 59ms
786	+055	Checking 204.217.156.0 against GBUdb. Not listed (NotExistentDomain). 54ms
984	+198	Checking 204.217.156.0 against SORBS. Not listed (NotExistentDomain). 197ms
992	+000	Checking 204.217.156.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 68ms
1,084	+100	Checking 204.217.156.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 99ms
1,084	+000	Done
1,084	+000	11 DNSBL's checked in 1,082ms.

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