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=209.209.40.0

copy try it

Log

001	+001	Resolved '209.209.40.0' to '209.209.40.0' in 0ms.
001	+000	Init of DNSBL list
001	+000	Running DNSBL checks
031	+030	Checking 209.209.40.0 against Spamhaus ZEN. Not listed (NotExistentDomain). 29ms
106	+076	Checking 209.209.40.0 against Barracuda Central. Not listed (NotExistentDomain). 75ms
162	+055	Checking 209.209.40.0 against spamcop. Not listed (NotExistentDomain). 55ms
447	+285	Checking 209.209.40.0 against Spamrats!. Error: ServerFailure. 285ms
471	+024	Checking 209.209.40.0 against SURBL (multi). Not listed (NotExistentDomain). 23ms
513	+042	Checking 209.209.40.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 42ms
553	+040	Checking 209.209.40.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 39ms
617	+064	Checking 209.209.40.0 against GBUdb. Not listed (NotExistentDomain). 64ms
652	+036	Checking 209.209.40.0 against SORBS. Not listed (NotExistentDomain). 35ms
752	+100	Checking 209.209.40.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 100ms
903	+150	Checking 209.209.40.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 150ms
903	+000	Done
903	+000	11 DNSBL's checked in 901ms.

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