HTTP/1.1 Upgrade header

en

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HTTP/1.1 Upgrade header

Quality:

HTTP/1.1 Upgrade header - header field introduced in HTTP/1.1; in the exchange, the client begins by making a cleartext request, which is later upgraded to a newer HTTP protocol version or switched to a different protocol; connection upgrade must be requested by the client. Article "HTTP/1.1 Upgrade header" in English Wikipedia has 21.4 points for quality (as of July 1, 2025). The article contains 4 references and 6 sections.

In this language version of Wikipedia the article has the best quality. Also, this article is the most popular in that language version.

Since the creation of article "HTTP/1.1 Upgrade header", its content was written by 28 registered users of English Wikipedia and edited by 35 registered Wikipedia users in all languages.

The article is cited 10 times in English Wikipedia and cited 16 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #134825 in December 2018
  • Global: #238234 in February 2014

The highest popularity rank from 2008:

  • Local (English): #250930 in April 2015
  • Global: #424775 in April 2015

There are 3 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

Languages with the highest quality

#LanguageQuality gradeQuality score
1English (en)
HTTP/1.1 Upgrade header
21.3984
2Spanish (es)
Cabecera HTTP/1.1 Upgrade
17.8309
3Japanese (ja)
HTTP/1.1 Upgradeヘッダー
11.9834
More...

The following table shows the most popular language versions of the article.

Most popular in all the time

The most popular language versions of the article "HTTP/1.1 Upgrade header" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
HTTP/1.1 Upgrade header
361 513
2Spanish (es)
Cabecera HTTP/1.1 Upgrade
15 901
3Japanese (ja)
HTTP/1.1 Upgradeヘッダー
2 400
More...

The following table shows the language versions of the article with the highest popularity in the last month.

Most popular in June 2025

The most popular language versions of the article "HTTP/1.1 Upgrade header" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
HTTP/1.1 Upgrade header
1 017
2Spanish (es)
Cabecera HTTP/1.1 Upgrade
34
3Japanese (ja)
HTTP/1.1 Upgradeヘッダー
32
More...

The following table shows the language versions of the article with the highest Authors’ Interest.

The highest AI

Language versions of the article "HTTP/1.1 Upgrade header" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
HTTP/1.1 Upgrade header
28
2Spanish (es)
Cabecera HTTP/1.1 Upgrade
4
3Japanese (ja)
HTTP/1.1 Upgradeヘッダー
3
More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

The highest AI in June 2025

Language versions of the article "HTTP/1.1 Upgrade header" with the highest AI in June 2025
#LanguageAI awardRelative AI
1English (en)
HTTP/1.1 Upgrade header
0
2Spanish (es)
Cabecera HTTP/1.1 Upgrade
0
3Japanese (ja)
HTTP/1.1 Upgradeヘッダー
0
More...

The following table shows the language versions of the article with the highest number of citations.

The highest CI

Language versions of the article "HTTP/1.1 Upgrade header" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
HTTP/1.1 Upgrade header
10
2Japanese (ja)
HTTP/1.1 Upgradeヘッダー
4
3Spanish (es)
Cabecera HTTP/1.1 Upgrade
2
More...

Scores

Estimated value for Wikipedia:
English:
Global:
Popularity in June 2025:
English:
Global:
Popularity in all years:
English:
Global:
Authors in June 2025:
English:
Global:
Registered authors in all years:
English:
Global:
Citations:
English:
Global:

Quality measures

Interwikis

#LanguageValue
enEnglish
HTTP/1.1 Upgrade header
esSpanish
Cabecera HTTP/1.1 Upgrade
jaJapanese
HTTP/1.1 Upgradeヘッダー

Popularity rank trends

Best Rank English:
#250930
04.2015
Global:
#424775
04.2015

AI rank trends

Best Rank English:
#134825
12.2018
Global:
#238234
02.2014

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on HTTP/1.1 Upgrade header from Wikipedia articles about WebSocket, List of HTTP status codes, List of HTTP header fields, HTTP and STARTTLS. Whereas reading the article about HTTP/1.1 Upgrade header people most often go to Wikipedia articles on HTTP, HTTP/2, WebSocket, List of HTTP status codes and Application-Layer Protocol Negotiation.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 12 August 2025

On 12 August 2025 in multilingual Wikipedia, Internet users most often read articles on the following topics: Cristiano Ronaldo, Wednesday, Georgina Rodríguez, ChatGPT, Weapons, Jenna Ortega, deaths in 2025, Taylor Swift, Miguel Uribe Turbay, 2025–26 UEFA Champions League.

In English Wikipedia the most popular articles on that day were: Weapons (2025 film), Danielle Spencer (American actress), Cristiano Ronaldo, Deaths in 2025, Taylor Swift, Wednesday (TV series), Superman (2025 film), Georgina Rodríguez, Coolie (2025 film), The Fantastic Four: First Steps.

About WikiRank

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information