
Domains Monitor
zonefiles.io
Newly Registered Domains Lists
AllZonefiles.io
Domain-Monitor.io
DomainTools
WhoisXML API
Lists and datasets of registered domain names for 1,500+ TLDs, updated daily. Domain and reverse IP lookup, simple API.

Mailflow.sh
Stackmail is a webmail service whereby you can log in to your emails from any browser at any time!

Which is more popular?
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | netapi.com | stackmail.com |
| Pricing | — | |
| Company | Startup from Cyprus | — |
| Listed in |
In their own words, as submitted to SaaSHub.


NetAPI tracks 380M+ active domain names in 1,500+ TLDs, both generic (gTLD) and country-code (ccTLD) zones. Full and newly registered domain lists, updated daily for most zones; deleted domain lists for zones published in full every day Detailed datasets: DNS, IP address, hosting country,...
No description of StackMail 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 StackMail.
NetAPI's answer
Security and threat intelligence teams (newly registered and compromised domains), brand protection and anti-phishing services, sales and marketing teams building lead lists, SEO and web analytics companies, and researchers who need complete lists of registered domains.
NetAPI's answer
NetAPI was founded by Slava Olesik, who earlier founded zonefiles.io (he sold it in 2017; its later owners shut it down in August 2025). NetAPI is his current project in the same field: domain lists and datasets for 1,500+ TLDs, a simple API and free open datasets. It is run by CodeRockers LTD, Cyprus.
NetAPI's answer
Every zone in one subscription: 380M+ active domains in 1,500+ TLDs, newly registered domains every day, enriched datasets and lists by DNS provider and registrar. We also publish free datasets: the daily NetAPI Top 1M websites ranking and compromised domain and IP lists (CC BY 4.0).
NetAPI's answer
Plain CSV files and a simple API, every TLD in one plan from $49 a month, daily updates, and a founder who has worked with domain data since zonefiles.io.
Share your experience with using NetAPI and StackMail. For example, how are they different and which one is better?
When comparing NetAPI and StackMail, 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.
Compare Domains Monitor to NetAPI or StackMail:

A self-hosted, unified webmail client. Connect multiple IMAP/SMTP accounts and manage them all in one clean interface.
Compare Mailflow.sh to NetAPI or StackMail:

List of registered domain names updated daily
Compare zonefiles.io to NetAPI or StackMail:

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).
Compare Newly Registered Domains Lists to NetAPI or StackMail:

Instantly download latest and historical zonefiles and domain lists for all domain zones worldwide. Download over 381M registered domain names across 1,582 domain zones, updated daily. New and expired domains feeds daily.
Compare AllZonefiles.io to NetAPI or StackMail:

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.
Compare Domain-Monitor.io to NetAPI or StackMail: