ptb.de

The Physikalisch-Technische Bundesanstalt is the national metrology institute of the Federal Republic of Germany, with scientific and technical service tasks. It is a higher federal authority and a public-law institution directly under federal government control, without legal capacity, under the auspices of the Federal Ministry for Economic Affairs and Energy. More information...

Multilingual Wikipedia

In June 2020 the website ptb.de was on the 3,778th place in the ranking of the most reliable and popular sources in multilingual Wikipedia from readers' point of view (PR-score). If we consider only frequency of appearance of this source in references of Wikipedia articles (F-score), this website was on the 21,285th place in June 2020. From Wikipedians' point of view, "ptb.de" is the 8,824th most reliable source in different language versions of Wikipedia (AR-score).

The website is placed before radiosvoboda.org and after juridicas.com in multilingual PR ranking of the most reliable sources in Wikipedia.

PR-score:
3,778th place
8,796,811
-1,608,145
AR-score:
8,824th place
489,441
-911
F-score:
21,285th place
494
0

German Wikipedia (de)

PR-score:
255th place
7,708,564
-1,253,434
AR-score:
891st place
378,223
-1,038
F-score:
2,574th place
257
0

English Wikipedia (en)

PR-score:
21,533rd place
590,851
-94,321
AR-score:
31,207th place
44,984
-26
F-score:
36,453rd place
81
0

Spanish Wikipedia (es)

PR-score:
13,120th place
142,364
-58,039
AR-score:
19,214th place
10,269
+80
F-score:
32,103rd place
12
0

French Wikipedia (fr)

PR-score:
12,041st place
90,281
-17,700
AR-score:
13,207th place
15,492
+36
F-score:
32,323rd place
15
0

Russian Wikipedia (ru)

PR-score:
28,292nd place
54,515
-21,104
AR-score:
36,711th place
4,047
+60
F-score:
61,521st place
6
0

Dutch Wikipedia (nl)

PR-score:
4,493rd place
49,590
-8,033
AR-score:
9,028th place
5,106
+50
F-score:
12,521st place
5
0

Bosnian Wikipedia (bs)

PR-score:
522nd place
14,575
-25,946
AR-score:
688th place
4,645
0
F-score:
957th place
15
0

Estonian Wikipedia (et)

PR-score:
7,600th place
733
+75
AR-score:
9,878th place
378
0
F-score:
2,574th place
15
0
Show all Wikipedia languages...

Popularity and reliability assessment of sources in references of Wikipedia in different languages. Data extraction based on complex method using Wikimedia dumps in July 2020. To find the most popular and reliable sources we used information about over 200 million references of Wikipedia articles. More details in the research "Modeling Popularity and Reliability of Sources in Multilingual Wikipedia". Values for PR-score and AR-score were additinaly increased 100 times (to distinguish smaller values in the ranking).