Security checks on a number of Websites and email Servers.

(Note, the results can fluctuate a bit due to temporary Internet fluctuations)
# name url internet.nl/
test-site
internet.nl/
test-mail
dnsinspect
.com

observatory
.mozilla.org

grade
ssllabs
.com

grade
TOTAL
SUM

date last
check
1
Delaat.net www.delaat.net 100
95
100
B+ 80
A+
100
475
2021-04-14
2
UvA SNE master
www.os3.nl 100 100 91 B 70
A+ 100
461
2021-04-16
3
Twente University www.utwente.nl 97 100 75 B 70
A+ 100
442
2021-04-16
4
SURF www.surf.nl 100
96 84 D- 25
A+ 100
405 2021-04-16
5
Protestanse Theologische Universiteitwww.pthu.nl100 38 69 B+80
A+ 100
387
2021-04-15
6
Erasmus University Rotterdam www.eur.nl 76 73 77 B 70
A 90
386
2021-04-16
6
TNO www.tno.nl 55 97 84 C 50
A+ 100
386
2021-04-16
8
Centrum voor Wiskunde en Informatica
www.cwi.nl97 85 88 C-45
B 70
385
2021-04-15
9
Utrecht Universitywww.uu.nl73 65 72 B70
A+ 100
380
2021-04-15
10Leiden Universitywww.universiteitleiden.nl40 72 88 B+80
A 90
370
2021-04-14
11
NIKHEF www.nikhef.nl 68 66 63 B 70
A+ 100
367
2021-04-16
12
Groningen University www.rug.nl 97 88 79 D 30
B 70
364
2021-04-15
13 Maastricht University www.maastrichtuniversity.nl 52 73 72 C 50
A 90
337
2021-04-14
14
University of Amsterdamwww.uva.nl79
65 48 B-65
B70
327
2021-04-14
15
Theological University Kampen www.tukampen.nl 79 61 84 F 10
A 90
324
2021-04-14
16
Vrije Universiteit Amsterdamwww.vu.nl84 91 48 F10
A 90
323
2021-04-14
17
Open University www.ou.nl 79 50 46 D+ 40
A+ 100
315
2021-04-14
18
Radboud University www.ru.nl 65 87 48 F 10
A+ 100
310
2021-04-14
19
Theological University of Apeldoornwww.tua.nl55 55 97 F10
A 90
307
2021-04-14
20
Hogeschool van Amsterdam hva.nl 76 65 47 D+ 40
B 70
298
2021-04-14
21
TU-Delftwww.tudelft.nl55 44 35 B70
A 90
294
2021-04-14
22
Eindhoven Universitywww.tue.nl68 73 50 F10
A 90
291
2021-04-14
23
Wageningen University www.wur.nl 70 73 45 F 10
A 90
288
2021-04-14
24 University of Humanistic Studies www.uvh.nl 34 37 82 D 30
A 90
273
2021-04-14
Grading (see grade.py)
100
90 85
80
70
65
60
50
45
40
30
25
10
A+ A A-
B+
B
B-
C+
C
C-
D+
D
D-
F
The grading of dnsinspect.com is processed differently. The grade for dnsinspect is the total score from that website minus 500.
Websites with DNS and ip Tools that can check servers, Internet protocols and implementations
INTERNET
MAIL
DNS(SEC)
DANE/DKIM/SPF/MTA-STS
Certs/TLS
REST
internet.nl observatory.mozilla.org www.dnsinspect.com www.huque.com/bin/danecheck crt.sh delaat.net/setup
IPv6-test.com
dnschecker.org aykevl.nl/apps/mta-sts/
ssllabs.com delaat.net/ipv6
test-ipv6.com
intodns.com
www.sslshopper.com http2.pro
ip6.nl
dnsviz.net
www.hardenize.com
w3dt.net


zonemaster.net
immuniweb.com
stat.ripe.net


dnssec-debugger.verisignlabs.com