🆚 OpenID vs. RSD

Compare technologies based on real-world usage data *

Type

Standard
Standard

About

OpenID is a decentralized authentication protocol based on OAuth 2.0 that enables applications to verify a user's identity through an external identity provider instead of managing credentials directly.

It adds an identity layer on top of OAuth by issuing ID tokens that confirm who the user is, supports single sign-on across multiple services, and allows retrieval of basic profile information.

Really Simple Discovery (RSD) is an XML format that helps client software find the services needed to read, edit, or "work with" weblogging software.

Headquarters

San Ramon, California, United States

Website

Categories

Standards › Rank #24
Standards › Rank #5

Popularity

Determined by the number of sites using each technology.

RSD is 48 times more popular than OpenID.
Total websites

Market share

Standards

Popularity by country

Determined by the number of sites detected from each country.

RSD is more popular than OpenID in all countries.
United States
Germany
United Kingdom
Spain
Italy
France
Japan
Australia
Netherlands
Brazil

Awards

Popularity by domain category

Determined by the number of sites in each category.

RSD is more popular than OpenID in all market segments.
Business
Marketing/Merchandising
Blogs/Wiki
Education/Reference
Internet Services
Online Shopping
Entertainment
Travel
Health
Non-Profit/Advocacy/NGO

Top sites

Top-ranked sites that use these technologies.

Name
Rank
#12
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Name
Rank
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See also

* According to recent studies, many of online reviews are fake.
When making your decision, it is better to rely on data that cannot be falsified.
Our service evaluates the popularity of technologies by the number of websites using them.

Statistics were last calculated on .
For details, see our methodology and disclaimer.