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=23.208.136.0

copy try it

Log

001	+001	Resolved '23.208.136.0' to '23.208.136.0' in 0ms.
001	+000	Init of DNSBL list
001	+000	Running DNSBL checks
028	+028	Checking 23.208.136.0 against Spamhaus ZEN. Not listed (NotExistentDomain). 27ms
045	+000	Checking 23.208.136.0 against spamcop. Not listed (NotExistentDomain). 44ms
046	+018	Checking 23.208.136.0 against Barracuda Central. Not listed (NotExistentDomain). 17ms
194	+147	Checking 23.208.136.0 against SURBL (multi). Not listed (NotExistentDomain). 147ms
210	+000	Checking 23.208.136.0 against GBUdb. Not listed (NotExistentDomain). 54ms
219	+000	Checking 23.208.136.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 100ms
245	+051	Checking 23.208.136.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 51ms
298	+078	Checking 23.208.136.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 78ms
333	+122	Checking 23.208.136.0 against SORBS. Not listed (NotExistentDomain). 122ms
431	+099	Checking 23.208.136.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 98ms
719	+674	Checking 23.208.136.0 against Spamrats!. Error: ServerFailure. 673ms
719	+474	Done
719	+000	11 DNSBL's checked in 718ms.

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