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=121.4.4.0

copy try it

Log

000	+000	Resolved '121.4.4.0' to '121.4.4.0' in 0ms.
000	+000	Init of DNSBL list
000	+000	Running DNSBL checks
023	+000	Checking 121.4.4.0 against SORBS. Not listed (NotExistentDomain). 21ms
027	+000	Checking 121.4.4.0 against Barracuda Central. Not listed (NotExistentDomain). 25ms
045	+000	Checking 121.4.4.0 against spamcop. Not listed (NotExistentDomain). 44ms
057	+057	Checking 121.4.4.0 against Spamhaus ZEN. Not listed (NotExistentDomain). 56ms
096	+051	Checking 121.4.4.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 50ms
106	+000	Checking 121.4.4.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 104ms
117	+000	Checking 121.4.4.0 against SURBL (multi). Not listed (NotExistentDomain). 116ms
121	+098	Checking 121.4.4.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 98ms
150	+093	Checking 121.4.4.0 against GBUdb. Not listed (NotExistentDomain). 93ms
155	+000	Checking 121.4.4.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 154ms
384	+356	Checking 121.4.4.0 against Spamrats!. Error: ServerFailure. 356ms
384	+233	Done
384	+000	11 DNSBL's checked in 383ms.

DNSBL check

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