Every subdomain of a company, with a live HTTP check

Created by

Insight Solutions

Actor

Subdomain Finder API — Certificate Logs & DNS, No Key

Searches basecamp.com in the public certificate-transparency logs (crt.sh and Cert Spotter), keeps only the hostnames that resolve in DNS today, and checks each one with a GET over HTTPS, falling back to HTTP: status, final URL after redirects, server header, page title and response time. One row per live hostname, with its certificate history. Swap in your own domain.

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Subdomain Finder API — Certificate Logs & DNS, No Keyinsight.solutions/subdomain-finder-api

Hostname

Resolves

HTTP status

Page title

+5 fields

Input

Domains(required):basecamp.com

Sources:crtsh+1

Only names that resolve:true

HTTP live check:true

Keep wildcard names as rows:false

Output fields

Hostname

Resolves

HTTP status

Page title

Server header

Final URL

Answered on

HTTP time (ms)

HTTP error

How it works

Sign up on Apify or log in

The Subdomain Finder API — Certificate Logs & DNS, No Key Actor is ready to run with the inputs already set for "Every subdomain of a company, with a live HTTP check". Sign up or log in and you'll land in Apify Console with a copy of this exact task.

Start the "Every subdomain of a company, with a live HTTP check" task

The Subdomain Finder API — Certificate Logs & DNS, No Key Actor will start running based on the input automatically. You can also change all the input fields, like domains, sources, and more, to match your specific use case.

Receive the "Every subdomain of a company, with a live HTTP check" output

Monitor the progress in real time. You will be notified as soon as your dataset is complete and ready for review. Each result includes data such as hostname, resolves, HTTP status, and more.

Integrate into your workflow

The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow. You can also run the "Every subdomain of a company, with a live HTTP check" task via API.