S-layer

S-layer - part of the cell envelope found in almost all archaea and in many types of bacteria. Article “S-layer” in English Wikipedia has 65.7 points for quality (as of July 1, 2026). The article contains 93 references and 8 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 “S-layer”, its content was written by 53 registered users of English Wikipedia and edited by 205 registered Wikipedia users in all languages.

The article is cited 107 times in English Wikipedia and cited 415 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #10753 in September 2004
• Global: #24458 in February 2013

The highest popularity rank from 2008:

• Local (English): #213676 in February 2015
• Global: #252896 in February 2015

There are 18 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.

#	Language	Quality grade	Quality score
1	English (en) S-layer		65.6552
2	German (de) S-Layer		39.665
3	French (fr) Couche S		34.5716
4	Chinese (zh) S層		33.9491
5	Arabic (ar) طبقة S		32.2572
6	Russian (ru) S-слой		27.0717
7	Persian (fa) لایه سطحی		27.026
8	Czech (cs) S-vrstva		24.1958
9	Indonesian (id) Lapisan-S		23.9329
10	Catalan (ca) Capa S		23.4675

More...

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

The most popular language versions of the article "S-layer" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) S-layer		377 471
2	Spanish (es) Capa S		131 524
3	German (de) S-Layer		69 759
4	French (fr) Couche S		28 331
5	Japanese (ja) S層		26 452
6	Russian (ru) S-слой		22 314
7	Italian (it) S-Layer		18 266
8	Persian (fa) لایه سطحی		16 119
9	Chinese (zh) S層		11 094
10	Ukrainian (uk) S-шар		6 854

More...

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

The most popular language versions of the article "S-layer" in June 2026

#	Language	Popularity award	Relative popularity
1	English (en) S-layer		432
2	Chinese (zh) S層		90
3	French (fr) Couche S		59
4	German (de) S-Layer		54
5	Persian (fa) لایه سطحی		43
6	Spanish (es) Capa S		39
7	Japanese (ja) S層		37
8	Russian (ru) S-слой		21
9	Italian (it) S-Layer		16
10	Czech (cs) S-vrstva		11

More...

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

Language versions of the article "S-layer" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) S-layer		53
2	German (de) S-Layer		45
3	Italian (it) S-Layer		25
4	French (fr) Couche S		14
5	Turkish (tr) S-tabakası		12
6	Spanish (es) Capa S		8
7	Russian (ru) S-слой		7
8	Japanese (ja) S層		6
9	Galician (gl) Capa S		5
10	Dutch (nl) S-laag		5

More...

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

Language versions of the article "S-layer" with the highest AI in June 2026

#	Language	AI award	Relative AI
1	Arabic (ar) طبقة S		0
2	Catalan (ca) Capa S		0
3	Czech (cs) S-vrstva		0
4	German (de) S-Layer		0
5	English (en) S-layer		0
6	Spanish (es) Capa S		0
7	Persian (fa) لایه سطحی		0
8	French (fr) Couche S		0
9	Galician (gl) Capa S		0
10	Indonesian (id) Lapisan-S		0

More...

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

Language versions of the article "S-layer" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) S-layer		107
2	Persian (fa) لایه سطحی		72
3	Russian (ru) S-слой		49
4	Chinese (zh) S層		39
5	German (de) S-Layer		30
6	Japanese (ja) S層		26
7	Galician (gl) Capa S		24
8	Spanish (es) Capa S		21
9	French (fr) Couche S		14
10	Catalan (ca) Capa S		10

More...

#	Language	Value
ar	Arabic طبقة S
ca	Catalan Capa S
cs	Czech S-vrstva
de	German S-Layer
en	English S-layer
es	Spanish Capa S
fa	Persian لایه سطحی
fr	French Couche S
gl	Galician Capa S
id	Indonesian Lapisan-S
it	Italian S-Layer
ja	Japanese S層
nl	Dutch S-laag
nn	Norwegian (Nynorsk) S-lag
ru	Russian S-слой
tr	Turkish S-tabakası
uk	Ukrainian S-шар
zh	Chinese S層

Best Rank

English: #213676 02.2015

Global: #252896 02.2015

Best Rank

English: #10753 09.2004

Global: #24458 02.2013

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.

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