
Domains Monitor
zonefiles.io
Newly Registered Domains Lists
DomainTools
Domain-Monitor.io
WhoisXML API
Domains Index
Daily updated lists of registered domain names, downloadable domain datasets. WHOIS and Reverse-DNS datasets.

Managed Hosting for developers, entrepreneurs, and businesses like yours

Website, pricing, platforms and company facts side by side.
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| Website | netapi.com | opalstack.com |
| Pricing | ||
| Company | Startup from Cyprus | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Lists of 400M+ classic and country domains, WHOIS data, and reverse DNS lookup. Lists of newly registered and expired domains. Daily updated domain datasets. Accessible manually or via a simple API.
No description of Opalstack yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing NetAPI and Opalstack.
NetAPI's answer
We monitor 400mln+ domain names in 1,390 domain zones (including country codes), and our datasets are updated daily.
NetAPI's answer
World-biggest domain database and robust API
Share your experience with using NetAPI and Opalstack. For example, how are they different and which one is better?
When comparing NetAPI and Opalstack, you can also consider the following products.

List of all active domains in all zones. Registered domains database with daily updates, contact details and powerful API. ccTLD and gTLD zones with contacts and details.
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List of registered domain names updated daily
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Domain Index’s Newly Registered Domains List is an extensive daily compilation of newly registered domain names as they appear in the Domain Name System (DNS).
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Domain name research, including comprehensive Whois Lookup, Reverse Whois Lookup and Whois History.
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Looking for the complete domain and website uptime monitoring solution? Domain Monitor keeps an eye on your website, cron, SSL and domain name 24/7 and will alert you through Email, SMS and web when something stops working.
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