Websites with HARICA certificates

0.03% serve a certificate issued by HARICA 8,349 of 28.86 million domains that completed a TLS handshake, DNS sweep of Oct 2026

High-authority sites

Ordered by Open Page Rank, the domain's authority score from the open web link graph.

#	Website	OPROpen Page Rank
1	ok.ru	8.90
2	max.ru	8.86
3	cnrs.fr	8.82
4	mpg.de	8.81
5	fraunhofer.de	8.79
6	dzen.ru	8.75
7	bka.gv.at	8.72
8	unibo.it	8.68
9	education.gouv.fr	8.64
10	vkvideo.ru	8.64
11	ub.edu	8.62
12	rki.de	8.61
13	uu.se	8.61
14	dsb.gv.at	8.60
15	ucm.es	8.60
16	csic.es	8.59
17	archives-ouvertes.fr	8.58
18	fu-berlin.de	8.58
19	uni-heidelberg.de	8.58
20	univie.ac.at	8.58
21	cnr.it	8.57
22	jivosite.com	8.57
23	ru.nl	8.57
24	cuni.cz	8.56
25	liu.se	8.56
26	rwth-aachen.de	8.55
27	uio.no	8.55
28	vkontakte.ru	8.55
29	kuleuven.be	8.54
30	riksdagen.se	8.54
31	kth.se	8.53
32	uni-hamburg.de	8.53
33	uni-stuttgart.de	8.53
34	agriculture.gouv.fr	8.52
35	hu-berlin.de	8.52
36	rivm.nl	8.52
37	rtbf.be	8.52
38	upm.es	8.52
39	uni-bremen.de	8.51
40	unizar.es	8.51
41	vk.ru	8.51
42	public.lu	8.50
43	universiteitleiden.nl	8.50
44	uni-tuebingen.de	8.49
45	vk.me	8.49
46	hal.science	8.48
47	tno.nl	8.48
48	unirioja.es	8.48
49	ki.se	8.46
50	uni-bonn.de	8.46
51	uni-muenster.de	8.43
52	us.es	8.43
53	ugent.be	8.42
54	unipd.it	8.41
55	inserm.fr	8.40
56	education.fr	8.39
57	uni-frankfurt.de	8.39
58	bremen.de	8.38
59	dlr.de	8.38
60	polimi.it	8.38
61	ugr.es	8.38
62	tu-berlin.de	8.37
63	uni-freiburg.de	8.37
64	dtu.dk	8.35
65	tau.ac.il	8.35
66	tuwien.ac.at	8.35
67	uib.no	8.35
68	uni-hannover.de	8.35
69	uni-leipzig.de	8.35
70	unimi.it	8.35
71	cvut.cz	8.34
72	ruhr-uni-bochum.de	8.34
73	tcd.ie	8.34
74	tu-darmstadt.de	8.34
75	bne.es	8.33
76	dwd.de	8.33
77	istat.it	8.33
78	uw.edu.pl	8.33
79	huji.ac.il	8.32
80	unipi.it	8.32
81	aalto.fi	8.31
82	cbr.ru	8.31
83	persee.fr	8.31
84	maastrichtuniversity.nl	8.30
85	up.pt	8.30
86	univ-tours.fr	8.29
87	uc3m.es	8.28
88	cea.fr	8.27
89	ens.fr	8.27
90	enseignementsup-recherche.gouv.fr	8.27
91	inrae.fr	8.27
92	jivo.ru	8.27
93	sciencesconf.org	8.27
94	ua.es	8.27
95	uni-due.de	8.27
96	unitn.it	8.27
97	upc.edu	8.27
98	bzga.de	8.26
99	charite.de	8.26
100	daad.de	8.26

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Websites with HARICA certificates

High-authority sites

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