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=203.32.21.0

copy try it

Log

001	+001	Resolved '203.32.21.0' to '203.32.21.0' in 0ms.
001	+000	Init of DNSBL list
001	+000	Running DNSBL checks
048	+000	Checking 203.32.21.0 against SORBS. Not listed (NotExistentDomain). 19ms
060	+059	Checking 203.32.21.0 against Spamhaus ZEN. Not listed (NotExistentDomain). 59ms
061	+000	Checking 203.32.21.0 against Barracuda Central. Not listed (NotExistentDomain). 28ms
087	+000	Checking 203.32.21.0 against spamcop. Not listed (NotExistentDomain). 71ms
087	+000	Checking 203.32.21.0 against SURBL (multi). Not listed (NotExistentDomain). 71ms
088	+000	Checking 203.32.21.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 50ms
145	+000	Checking 203.32.21.0 against GBUdb. Not listed (NotExistentDomain). 106ms
145	+000	Checking 203.32.21.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 104ms
150	+000	Checking 203.32.21.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 118ms
289	+000	Checking 203.32.21.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 268ms
614	+000	Checking 203.32.21.0 against Spamrats!. Error: ServerFailure. 580ms
678	+618	Done
678	+000	11 DNSBL's checked in 677ms.

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