Landolt C

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Landolt C

Quality:

Landolt C - Optotype. Article “Landolt C” in English Wikipedia has 24 points for quality (as of July 1, 2025). The article contains 4 references and 3 sections.

This article has the best quality in Slovenian Wikipedia. However, this article is the most popular in English version.

Since the creation of article “Landolt C”, its content was written by 40 registered users of English Wikipedia and edited by 109 registered Wikipedia users in all languages.

The article is cited 14 times in English Wikipedia and cited 92 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #149518 in September 2005
  • Global: #99055 in December 2015

The highest popularity rank from 2008:

  • Local (English): #210949 in June 2009
  • Global: #217983 in May 2017

There are 9 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
1Slovenian (sl)
Landoltov kolobar
29.5175
2English (en)
Landolt C
24.0434
3Catalan (ca)
Prova de Landolt
19.5752
4Arabic (ar)
حلقة لاندولت
18.5455
5German (de)
Landoltring
12.4741
6French (fr)
Échelle Landolt
9.3696
7Russian (ru)
Кольца Ландольта
6.4514
8Spanish (es)
Test de Landolt
3.5719
9Norwegian (no)
Landolt C
1.4117
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 "Landolt C" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Landolt C
434 483
2Spanish (es)
Test de Landolt
163 386
3German (de)
Landoltring
142 943
4French (fr)
Échelle Landolt
52 628
5Russian (ru)
Кольца Ландольта
20 592
6Arabic (ar)
حلقة لاندولت
9 167
7Norwegian (no)
Landolt C
7 678
8Slovenian (sl)
Landoltov kolobar
1 567
9Catalan (ca)
Prova de Landolt
707
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 "Landolt C" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Landolt C
1 482
2Russian (ru)
Кольца Ландольта
546
3German (de)
Landoltring
362
4Spanish (es)
Test de Landolt
162
5French (fr)
Échelle Landolt
131
6Slovenian (sl)
Landoltov kolobar
14
7Norwegian (no)
Landolt C
11
8Catalan (ca)
Prova de Landolt
10
9Arabic (ar)
حلقة لاندولت
4
More...

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

The highest AI

Language versions of the article "Landolt C" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Landolt C
40
2German (de)
Landoltring
24
3French (fr)
Échelle Landolt
11
4Arabic (ar)
حلقة لاندولت
8
5Norwegian (no)
Landolt C
8
6Spanish (es)
Test de Landolt
7
7Russian (ru)
Кольца Ландольта
5
8Catalan (ca)
Prova de Landolt
3
9Slovenian (sl)
Landoltov kolobar
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 "Landolt C" with the highest AI in June 2025
#LanguageAI awardRelative AI
1Arabic (ar)
حلقة لاندولت
0
2Catalan (ca)
Prova de Landolt
0
3German (de)
Landoltring
0
4English (en)
Landolt C
0
5Spanish (es)
Test de Landolt
0
6French (fr)
Échelle Landolt
0
7Norwegian (no)
Landolt C
0
8Russian (ru)
Кольца Ландольта
0
9Slovenian (sl)
Landoltov kolobar
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 "Landolt C" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1French (fr)
Échelle Landolt
34
2English (en)
Landolt C
14
3German (de)
Landoltring
13
4Spanish (es)
Test de Landolt
13
5Russian (ru)
Кольца Ландольта
6
6Catalan (ca)
Prova de Landolt
5
7Arabic (ar)
حلقة لاندولت
3
8Norwegian (no)
Landolt C
2
9Slovenian (sl)
Landoltov kolobar
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
arArabic
حلقة لاندولت
caCatalan
Prova de Landolt
deGerman
Landoltring
enEnglish
Landolt C
esSpanish
Test de Landolt
frFrench
Échelle Landolt
noNorwegian
Landolt C
ruRussian
Кольца Ландольта
slSlovenian
Landoltov kolobar

Popularity rank trends

Best Rank English:
#210949
06.2009
Global:
#217983
05.2017

AI rank trends

Best Rank English:
#149518
09.2005
Global:
#99055
12.2015

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Landolt C from Wikipedia articles about Eye chart, Visual acuity, Snellen chart, Wikipedia article and E chart. Whereas reading the article about Landolt C people most often go to Wikipedia articles on E chart, Edmund Landolt, Golovin–Sivtsev table, Visual acuity and Eye chart.

Cumulative results of quality and popularity of the Wikipedia article

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

News from 28 January 2026

On 28 January 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2025–26 UEFA Champions League, Nipah virus, Doomsday Clock, UEFA Champions League, Elena Rybakina, Donald Trump, 2026 European Men's Handball Championship, killing of Alex Pretti, Kristi Noem, deaths in 2026.

In English Wikipedia the most popular articles on that day were: Ajit Pawar, Border 2, Sharad Pawar, Killing of Alex Pretti, Ilhan Omar, Sunetra Pawar, Todd Monken, Kristi Noem, Wonder Man (miniseries), Gregory Bovino.

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