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Subdomain Finder (Certificate Transparency)

Subdomain Finder enumerates every subdomain of a domain from Certificate Transparency logs (crt.sh, Cert Spotter) and resolves each one — one row per subdomain, no proxies needed.

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Subdomain Finder (Certificate Transparency)
Subdomain Finder (Certificate Transparency)webdatatools/subdomain-finder
Subdomain
Domain
Resolves
IPv4 addresses
+5 fields
Text
Number
Boolean
List
Object

Input

Domains(required):apify.com+1
Resolve DNS:true
Include wildcard names:false
Max subdomains per domain:500
Max concurrency:5

Output fields

Subdomain
Domain
Resolves
IPv4 addresses
CNAME
Certificates
Issuers
First seen
Last seen

How it works

Sign up on Apify01

Create your Apify account to access the Subdomain Finder (Certificate Transparency).

Start the run02

The Actor will start running based on the input automatically.

Receive the output03

Monitor the progress in real-time. You will be notified as soon as your dataset is complete and ready for review.

Integrate into your workflow04

The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow.

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