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=81.173.21.0

copy try it

Log

002	+002	Resolved '81.173.21.0' to '81.173.21.0' in 0ms.
002	+000	Init of DNSBL list
004	+002	Running DNSBL checks
062	+057	Checking 81.173.21.0 against Spamhaus ZEN. Not listed (NotExistentDomain). 55ms
088	+027	Checking 81.173.21.0 against Barracuda Central. Not listed (NotExistentDomain). 26ms
158	+070	Checking 81.173.21.0 against spamcop. Not listed (NotExistentDomain). 69ms
185	+000	Checking 81.173.21.0 against SURBL (multi). Not listed (NotExistentDomain). 21ms
234	+049	Checking 81.173.21.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 48ms
273	+000	Checking 81.173.21.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 53ms
289	+055	Checking 81.173.21.0 against GBUdb. Not listed (NotExistentDomain). 54ms
382	+093	Checking 81.173.21.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 92ms
427	+154	Checking 81.173.21.0 against SORBS. Not listed (NotExistentDomain). 154ms
444	+286	Checking 81.173.21.0 against Spamrats!. Error: ServerFailure. 285ms
525	+098	Checking 81.173.21.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 98ms
525	+082	Done
526	+000	11 DNSBL's checked in 521ms.

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