CD1

en

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CD1

Quality:

CD1 - family of glycoproteins expressed on the surface of various human antigen-presenting cells. Article “CD1” in English Wikipedia has 50.5 points for quality (as of July 1, 2026). The article contains 42 references and 13 sections.

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

Since the creation of article “CD1”, its content was written by 44 registered users of English Wikipedia and edited by 119 registered Wikipedia users in all languages.

The article is cited 743 times in English Wikipedia and cited 1369 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #55247 in January 2026
  • Global: #104880 in December 2022

The highest popularity rank from 2008:

  • Local (English): #78160 in August 2008
  • Global: #122746 in August 2008

There are 15 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, 2026 (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)
CD1
50.5082
2Czech (cs)
CD1
36.5319
3French (fr)
CD1
32.0922
4Turkish (tr)
CD1
24.8744
5Korean (ko)
CD1
19.2051
6Galician (gl)
CD1
19.0745
7Portuguese (pt)
CD1
19.0697
8Vietnamese (vi)
CD1
18.7917
9Spanish (es)
CD1
17.3398
10Japanese (ja)
CD1
15.5118
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 "CD1" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
CD1
434 225
2Spanish (es)
CD1
75 926
3Italian (it)
CD1
32 503
4French (fr)
CD1
30 460
5Japanese (ja)
CD1
27 542
6Russian (ru)
CD1
22 980
7Chinese (zh)
CD1
14 612
8Portuguese (pt)
CD1
13 487
9Czech (cs)
CD1
2 161
10Turkish (tr)
CD1
2 133
More...

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

Most popular in June 2026

The most popular language versions of the article "CD1" in June 2026
#LanguagePopularity awardRelative popularity
1English (en)
CD1
381
2Chinese (zh)
CD1
163
3Spanish (es)
CD1
75
4French (fr)
CD1
52
5Italian (it)
CD1
29
6Japanese (ja)
CD1
24
7Russian (ru)
CD1
21
8Czech (cs)
CD1
18
9Korean (ko)
CD1
17
10Turkish (tr)
CD1
16
More...

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

The highest AI

Language versions of the article "CD1" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
CD1
44
2Italian (it)
CD1
19
3French (fr)
CD1
10
4Spanish (es)
CD1
7
5Portuguese (pt)
CD1
5
6Turkish (tr)
CD1
5
7Vietnamese (vi)
CD1
5
8Catalan (ca)
CD1
4
9Czech (cs)
CD1
4
10Japanese (ja)
CD1
4
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 2026

Language versions of the article "CD1" with the highest AI in June 2026
#LanguageAI awardRelative AI
1Arabic (ar)
كتلة التمايز 1
1
2Catalan (ca)
CD1
0
3Czech (cs)
CD1
0
4English (en)
CD1
0
5Spanish (es)
CD1
0
6French (fr)
CD1
0
7Galician (gl)
CD1
0
8Italian (it)
CD1
0
9Japanese (ja)
CD1
0
10Korean (ko)
CD1
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 "CD1" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
CD1
743
2Russian (ru)
CD1
330
3Chinese (zh)
CD1
78
4French (fr)
CD1
60
5Italian (it)
CD1
47
6Turkish (tr)
CD1
26
7Japanese (ja)
CD1
23
8Vietnamese (vi)
CD1
22
9Catalan (ca)
CD1
12
10Czech (cs)
CD1
6
More...

Scores

Estimated value for Wikipedia:
English:
Global:
Popularity in June 2026:
English:
Global:
Popularity in all years:
English:
Global:
Authors in June 2026:
English:
Global:
Registered authors in all years:
English:
Global:
Citations:
English:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
كتلة التمايز 1
caCatalan
CD1
csCzech
CD1
enEnglish
CD1
esSpanish
CD1
frFrench
CD1
glGalician
CD1
itItalian
CD1
jaJapanese
CD1
koKorean
CD1
ptPortuguese
CD1
ruRussian
CD1
trTurkish
CD1
viVietnamese
CD1
zhChinese
CD1

Popularity rank trends

Best Rank English:
#78160
08.2008
Global:
#122746
08.2008

AI rank trends

Best Rank English:
#55247
01.2026
Global:
#104880
12.2022

Languages comparison

Important global interconnections (July 2025 – June 2026)

Cumulative results of quality and popularity of the Wikipedia article

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

en: CD1
es: CD1
it: CD1
fr: CD1
ja: CD1
ru: CD1
zh: CD1
pt: CD1
cs: CD1
tr: CD1
gl: CD1
ca: CD1
vi: CD1
ko: CD1

News from 1 July 2026

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In English Wikipedia the most popular articles on that day were: 2026 FIFA World Cup, Harry Kane, Julián Quiñones, List of FIFA World Cup top goalscorers, Kylian Mbappé, Democratic Republic of the Congo, Erling Haaland, DR Congo national football team, Melat Kiros, FIFA World Cup.

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 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information