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Find out the technology behind websites

ipinfo.io
ipstack
ipgeolocation.io
IP-API.com
ipdata.co
ipwhois.io
IP2Location
Web analytics with IP address lookup and location API
Which is more popular?
Based on our record, BuiltWith should be more popular than ipapi. It has been mentioned 162 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | builtwith.com | ipapi.co |
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| Company | Startup from Australia | — |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
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
Developers, businesses, and organizations seeking to enhance their applications with IP geolocation services. It's especially beneficial for projects involving fraud prevention, targeted content delivery, marketing analysis, and user experience customization.
Walkthroughs and reviews on video.
How to Find Competitors Customers | BuiltWith Review | Kas Andz
More videos
How to use the Ipapi API to find information about IP addresses
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using BuiltWith and ipapi. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


A great tool to help you discover the technology being used by a variety of websites. I was impressed that upon signing up that I had full access to a free list of leads.
Sometimes, BuiltWith may not fit your specific business needs. If so, we’ve compiled our list of best BuiltWith alternatives you may want to consider for your profiling.
BuiltWith is a truly comprehensive tool that will mine a ton of information from anyone’s site and serve it to you in a manner you will be able to crunch and use it. You might take your time since it is a lot of...
We have no reviews of ipapi yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Evan You, creator of Vue.js, is a prime example. Vivek Nair, Co-Founder of BotGauge, notes that You “created something that addresses real developer needs with clean logic and thoughtful design.” Vue.js powers over 1.5 million websites... - Source: dev.to / over 1 year ago
There exist websites like https://builtwith.com so answer to your question is yes. - Source: Hacker News / over 1 year ago
BuiltWith says the web client is NextJS which is interesting as ChatGPT made a big switch away to Remix IIRC. https://builtwith.com/?https%3a%2f%2fclaude.ai%2fnew. - Source: Hacker News / almost 2 years ago
// API 1: ip-api.com (free, no key needed, 45 req/min) $response = $http->get("http://ip-api.com/json/{$ip}?fields=proxy,hosting"); If (!empty($data['proxy']) || !empty($data['hosting'])) { return true; // VPN/Proxy detected } //... - Source: dev.to / 9 months ago
IPapi - Service that provides you an info about an IP address. - Source: dev.to / over 2 years ago
Ipapi - IP Address Location API by Kloudend, Inc - A reliable geolocation API built on AWS, trusted by Fortune 500. The free tier offers 30k lookups/month (1k/day) without signup. - Source: dev.to / over 2 years ago
When comparing BuiltWith and ipapi, you can also consider the following products.

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ipstack is a free, real-time IP address to location JSON API and database service supporting IPv4 and IPv6 lookup.
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A completely free software tool that uses crowdsourced data to find business email addresses
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Free IP Geolocation API and Accurate GeoIP Lookup Location Database
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