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.
Checking 15.236.0.0 against Spamhaus ZEN. Not listed (NotExistentDomain). 38ms
040
+000
Checking 15.236.0.0 against spamcop. Not listed (NotExistentDomain). 39ms
048
+000
Checking 15.236.0.0 against SURBL (multi). Not listed (NotExistentDomain). 47ms
056
+000
Checking 15.236.0.0 against SORBS. Not listed (NotExistentDomain). 54ms
067
+028
Checking 15.236.0.0 against Barracuda Central. Not listed (NotExistentDomain). 27ms
077
+000
Checking 15.236.0.0 against UCEPROTECT lvl 2. Not listed (NotExistentDomain). 75ms
098
+050
Checking 15.236.0.0 against PSBL (Passive Spam Block List). Not listed (NotExistentDomain). 49ms
105
+000
Checking 15.236.0.0 against ips.backscatterer.org. Not listed (NotExistentDomain). 103ms
107
+067
Checking 15.236.0.0 against Spamrats!. Not listed (NotExistentDomain). 67ms
157
+101
Checking 15.236.0.0 against Junk Email Filter (tm). Not listed (NotExistentDomain). 100ms
158
+091
Checking 15.236.0.0 against GBUdb. Not listed (NotExistentDomain). 91ms
158
+000
Done
158
+000
11 DNSBL's checked in 157ms.
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