
Fast.com
LibreSpeed
Speed Test by Cloudflare
Meteor
Affimity
speedtest-cli
Speedtest.net
Quickly check your internet connection speed.

ZIP Code API
ZipCheckup
PostalCodes.info
Smarty
Geocode.xyz
Geoco.io
getAddress.io
Free Zip Code API - Free Postal Code Validation | Zipcodestack

Which is more popular?
Based on our record, Zipcodestack should be more popular than Speediness. It has been mentioned 3 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | sindresorhus.com | zipcodestack.com |
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| 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.


No analysis of Speediness yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


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


I made a free GUI app for this tool: https://sindresorhus.com/speediness. - Source: Hacker News / over 3 years ago
If anyone is looking for a GUI version of this CLI tool, check out my Speediness app. Source: over 4 years ago
Using the zipcodestack API in your Node.js application is straightforward. You’ll first need to sign up for a free API key (it only takes a minute). Once you have your API key, you can call the REST endpoints using any HTTP client. Below... - Source: dev.to / about 1 year ago
Zipcodestack - Free Zip Code API and Postal Code Validation. Ten thousand free requests/month. - Source: dev.to / over 2 years ago
I have seen this request pop up quite a few times. I did a quick search for free APIs of zipcode lookups. This one, named "zipcodestack" (I'm not in any way tied to, endorsing, or promoting them) seemed like a pretty good resource with... Source: over 3 years ago
When comparing Speediness and Zipcodestack, you can also consider the following products.

Quickly test your internet speed with this fast-loading speed test powered by Netflix.
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REST API for US ZIP, ZIP+4, and Canadian postal codes. Single unified endpoint covers address validation and standardization, radius search (centroid haversine and true spatial polygon intersection), point-to-point distance, autocomplete/typeah
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Self-hosted Speedtest for HTML5. Easy setup, examples, configurable, mobile friendly.
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Check water quality, product recalls, energy rebates, and safety alerts for any U.S. ZIP code. Free reports powered by EPA and government data.
Compare ZipCheckup to Speediness or Zipcodestack:

speed.cloudflare.com is a tool that allows you to measure the speed and consistency of your connection to the Internet. You can use it to verify that the speed your ISP promised you is the speed you are getting.
Compare Speed Test by Cloudflare to Speediness or Zipcodestack:
Postal code lookup API and downloadable country datasets for address validation, checkout, logistics and geocoding workflows.
Compare PostalCodes.info to Speediness or Zipcodestack: