
Fast.com
Speedtest.net
SpeedOf.Me
Testmy.net
nPerf
Speed Test by Cloudflare
speedtest-cli
Self-hosted Speedtest for HTML5. Easy setup, examples, configurable, mobile friendly.
Ideal postcodes
Postio.co.uk
USZipLookup
Zipcodestack
Fetchify
Data8 UK
Geocode.xyz
Postal code lookup API and downloadable country datasets for address validation, checkout, logistics and geocoding workflows.
Which is more popular?
Based on our record, LibreSpeed seems to be more popular. It has been mentioned 34 times since March 2021.
Website, pricing, platforms and company facts side by side.
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PC
PostalCodes.info
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| Website | github.com | postalcodes.info |
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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.

No analysis of LibreSpeed yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Self-host your own internet speed test with LibreSpeed!
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using LibreSpeed and PostalCodes.info. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

I run internetspeedtest.net, a free, no-signup speed test built on the open-source LibreSpeed engine. - Source: dev.to / 2 months ago
Try hosting a DIY speed test on a cloud server (like Google colab or the free oracle instances or whatever): https://github.com/librespeed/speedtest. - Source: Hacker News / over 3 years ago
It should be DIA. They provide the internet connection to the company since 2 decades and it's a very small ISP, so it's very vague in terms of contract. Iperf was giving me very terrible results with TCP, UDP was giving me a couple of... Source: over 3 years ago
Tracking PostalCodes.info since May 2026.
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Fast UK address, email & phone validation APIs for developers. Official Royal Mail PAF data. Pay as you go, 100 free lookups.
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SpeedOf.Me is an HTML5 Internet speed test. No Flash or Java needed!
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Find any US ZIP code or Canadian postal code instantly. Search by city, address or code - get accurate location, county & population data free.
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