Airtel IP
Geocoding
IP Geolocation API. Collecting data from multiple sources
No keyCORSHTTPS
PostcodeData.nl
Provide geolocation data based on postcode for Dutch addresses
Verified 4 days ago: 100% uptime
API key
Not required
HTTPS
Not supported
Browser calls
Yes, CORS enabled
Status
Live · 100/100
What our checks found
- Health score
- 100/100
- Reliability
- 100%
- Average latency
- 3661ms
Last checked 2026-09-18. Measured independently, not self-reported by the provider.
How to call it
A starting template for PostcodeData.nl. Replace ENDPOINT with the path from the official documentation, which we link above rather than guess at.
# No authentication required.
curl -s "http://api.postcodedata.nl/ENDPOINT" \
-H "Accept: application/json"This API is served over plain HTTP. Browsers block HTTP requests made from an HTTPS page, so you will need a server-side call.
Where this listing comes from
Aggregated from 2 public sources (public-api-lists, public-apis), then normalised and checked by us. If something here is wrong, tell us and we will correct it.
Other Geocoding APIs
See all 174 →Geocode.xyz
Geocoding
Provides worldwide forward/reverse geocoding, batch geocoding and geoparsing
No keyCORSHTTPS
Geocode.xyz
Geocoding
Provides worldwide forward/reverse geocoding, batch geocoding and geoparsing
No keyCORSHTTPS
IBGE
Geocoding
Aggregate services of IBGE (Brazilian Institute of Geography and Statistics)
No keyCORSHTTPS
ip.app
Geocoding
IP, ASN, geolocation, timezone, security, user-agent in plain text, JSON or HTTP headers
No keyCORSHTTPS
ipapi.co
Geocoding
Find IP address location information
No keyCORSHTTPS
PostcodeData.nl — common questions
Answered from what our own scheduled checks found, not from the provider's marketing.
Is PostcodeData.nl free to use?
PostcodeData.nl is listed in our free catalogue and required no credential when we called it. It needs no authentication at all, so you can send a request without signing up. Free tiers can still carry rate limits or non-commercial terms, so check the provider's own terms before shipping.
Does PostcodeData.nl need an API key?
No. We called PostcodeData.nl on 2026-09-18 with no key, no token and no Authorization header, and it responded. That is what puts it in our no-key collection.
Can I call PostcodeData.nl from browser JavaScript?
Yes. PostcodeData.nl returned CORS headers when we checked it, so a browser will let your page read the response. You can fetch it directly from client-side JavaScript with no proxy and no backend.
Is PostcodeData.nl still working?
Yes, as of 2026-09-18. Our automated check reached PostcodeData.nl and recorded a 100% reliability score with a median response time of 3661 ms. We re-check on a schedule, and this page updates with the result.
Is PostcodeData.nl available over HTTPS?
No. PostcodeData.nl was only reachable over plain HTTP when we checked. Browsers block HTTP requests made from an HTTPS page, so this will fail in production unless you call it from a server instead.