IOU

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IOU

Quality:

IOU - informal document acknowledging debt. Article “IOU” in English Wikipedia has 20.8 points for quality (as of July 1, 2025). The article contains 5 references and 3 sections.

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

Since the creation of article “IOU”, its content was written by 63 registered users of English Wikipedia and edited by 300 registered Wikipedia users in all languages.

The article is cited 119 times in English Wikipedia and cited 518 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #25446 in January 2012
  • Global: #32115 in May 2014

The highest popularity rank from 2008:

  • Local (English): #11559 in July 2009
  • Global: #11395 in June 2009

There are 11 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
1Finnish (fi)
Velkakirja
42.1574
2Ukrainian (uk)
Боргове зобов'язання
25.918
3Spanish (es)
Pagaré
25.2701
4English (en)
IOU
20.7701
5Russian (ru)
Долговое обязательство
18.8952
6Armenian (hy)
Պարտքի պարտավորություն
17.8252
7German (de)
Schuldschein
17.7076
8Arabic (ar)
سند دين
16.7348
9Basque (eu)
Zor-agiri
15.7433
10Czech (cs)
Dlužní úpis
14.6369
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 "IOU" in all the time
#LanguagePopularity awardRelative popularity
1Spanish (es)
Pagaré
5 986 612
2English (en)
IOU
2 403 910
3German (de)
Schuldschein
515 516
4Russian (ru)
Долговое обязательство
210 802
5Finnish (fi)
Velkakirja
188 200
6Czech (cs)
Dlužní úpis
44 360
7Simple English (simple)
IOU
19 671
8Ukrainian (uk)
Боргове зобов'язання
4 201
9Arabic (ar)
سند دين
1 786
10Basque (eu)
Zor-agiri
1 560
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 "IOU" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
IOU
6 202
2Spanish (es)
Pagaré
1 877
3German (de)
Schuldschein
683
4Russian (ru)
Долговое обязательство
384
5Simple English (simple)
IOU
240
6Finnish (fi)
Velkakirja
160
7Czech (cs)
Dlužní úpis
137
8Ukrainian (uk)
Боргове зобов'язання
55
9Arabic (ar)
سند دين
41
10Basque (eu)
Zor-agiri
14
More...

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

The highest AI

Language versions of the article "IOU" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1Spanish (es)
Pagaré
128
2English (en)
IOU
63
3German (de)
Schuldschein
33
4Russian (ru)
Долговое обязательство
24
5Finnish (fi)
Velkakirja
19
6Czech (cs)
Dlužní úpis
16
7Simple English (simple)
IOU
7
8Basque (eu)
Zor-agiri
4
9Ukrainian (uk)
Боргове зобов'язання
3
10Armenian (hy)
Պարտքի պարտավորություն
2
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 "IOU" with the highest AI in June 2025
#LanguageAI awardRelative AI
1Arabic (ar)
سند دين
0
2Czech (cs)
Dlužní úpis
0
3German (de)
Schuldschein
0
4English (en)
IOU
0
5Spanish (es)
Pagaré
0
6Basque (eu)
Zor-agiri
0
7Finnish (fi)
Velkakirja
0
8Armenian (hy)
Պարտքի պարտավորություն
0
9Russian (ru)
Долговое обязательство
0
10Simple English (simple)
IOU
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 "IOU" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1German (de)
Schuldschein
119
2English (en)
IOU
119
3Czech (cs)
Dlužní úpis
82
4Spanish (es)
Pagaré
74
5Russian (ru)
Долговое обязательство
44
6Finnish (fi)
Velkakirja
33
7Ukrainian (uk)
Боргове зобов'язання
28
8Basque (eu)
Zor-agiri
10
9Armenian (hy)
Պարտքի պարտավորություն
4
10Simple English (simple)
IOU
4
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
سند دين
csCzech
Dlužní úpis
deGerman
Schuldschein
enEnglish
IOU
esSpanish
Pagaré
euBasque
Zor-agiri
fiFinnish
Velkakirja
hyArmenian
Պարտքի պարտավորություն
ruRussian
Долговое обязательство
simpleSimple English
IOU
ukUkrainian
Боргове зобов'язання

Popularity rank trends

Best Rank English:
#11559
07.2009
Global:
#11395
06.2009

AI rank trends

Best Rank English:
#25446
01.2012
Global:
#32115
05.2014

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on IOU from Wikipedia articles about Bond, The Blues Brothers, Dumb and Dumber, One red paperclip and IOU. Whereas reading the article about IOU people most often go to Wikipedia articles on Promissory note, IOU, Scrip, Negotiable instrument and Warrant of payment.

Cumulative results of quality and popularity of the Wikipedia article

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

en: IOU
simple: IOU

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