kommunermedipv6.se
Municipalities with post-quantum TLS
Share of municipal websites that negotiate a hybrid post-quantum TLS 1.3 key exchange (ML-KEM) — top 10 of 41 countries
1
Jersey
100%
2
Malta
99%
3
Ukraine
87%
4
Lithuania
81%
5
Greenland
80%
6
Luxembourg
79%
7
Guernsey
75%
8
Sweden
71%
9
Estonia
63%
10
Denmark
51%
71%
Sweden: 206 of 290 municipalities support post-quantum TLS
8th
place of 41 countries
31%
average across all 41 countries
(21,429 of 69,469 domains)
(21,429 of 69,469 domains)
Source: kommunermedipv6.se, latest scan per country (Sept 2026). PQC = the website's TLS 1.3 handshake negotiates X25519MLKEM768 or another hybrid ML-KEM group (openssl probe); sites that still also allow TLS 1.2 are counted too. Counted per municipal domain – municipalities without a known website are not included. Countries with few municipalities vary more.