Application Layer Protocol Negotiation (ALPN)
ALPN provides a way for client's to specify the application protocols they support.Top Client ALPNs
Rank | ALPN | Unique Fingerprints | % Fingerprints | Connections | % Connections |
---|---|---|---|---|---|
1 | h2 http/1.1 |
22932642 | 35.86% | 14067711923 | 66.35% |
2 | 287955 | 0.45% | 3458490644 | 16.31% | |
3 | http/1.1 |
818827 | 1.28% | 3275355337 | 15.45% |
4 | grpc-exp h2 |
54 | 0.00% | 96730229 | 0.46% |
5 | h2 h2-fb http/1.1 |
34 | 0.00% | 90115923 | 0.43% |
6 | h2 h2-16 h2-15 h2-14 spdy/3.1 spdy/3 http/1.1 |
154 | 0.00% | 79638530 | 0.38% |
7 | h2 |
450 | 0.00% | 63204330 | 0.30% |
8 | 39895484 | 62.39% | 39895968 | 0.19% | |
9 | spdy/3.1 spdy/3 http/1.1 |
57 | 0.00% | 12201368 | 0.06% |
10 | h2 spdy/3.1 http/1.1 |
261 | 0.00% | 6337535 | 0.03% |
11 | http/1.1 h2 |
4788 | 0.01% | 3649566 | 0.02% |
12 | http/0.9 http/1.0 http/1.1 spdy/1 spdy/2 spdy/3 h2 h2c hq |
25 | 0.00% | 1765303 | 0.01% |
13 | apns-security-v3 apns-pack-v1 |
15 | 0.00% | 1680517 | 0.01% |
14 | http/1.1 http/1.0 |
24 | 0.00% | 1281263 | 0.01% |
15 | h2 h2-fb |
5 | 0.00% | 1121156 | 0.01% |
16 | hq h2c h2 spdy/3 spdy/2 spdy/1 http/1.1 http/1.0 http/0.9 |
15 | 0.00% | 890476 | 0.00% |
17 | http/1.1 https/1.1 |
2 | 0.00% | 836078 | 0.00% |
18 | http/0.9 http/1.0 spdy/1 spdy/2 spdy/3 h2c hq |
5 | 0.00% | 354258 | 0.00% |
19 | hq h2c spdy/3 spdy/2 spdy/1 http/1.0 http/0.9 |
5 | 0.00% | 352917 | 0.00% |
20 | h2 http/1.1 http/1.0 |
20 | 0.00% | 240052 | 0.00% |
Selected ALPNs (Server Hello)
Rank | ALPN | Fingerprints | % Fingerprints | Connections | % Connections |
---|---|---|---|---|---|
1 | 5419081 | 78.83% | 8783252108 | 82.15% | |
2 | h2 | 783353 | 11.39% | 981480119 | 9.18% |
3 | http/1.1 | 655864 | 9.54% | 923076053 | 8.63% |
4 | grpc-exp | 26 | 0.00% | 954140 | 0.01% |
5 | apns-pack-v1:4096:4096 | 5 | 0.00% | 90045 | 0.00% |
6 | x-amzn-mqtt-ca | 23 | 0.00% | 60686 | 0.00% |
7 | x-amzn-http-ca | 7 | 0.00% | 6578 | 0.00% |
8 | http/1.1 | 4 | 0.00% | 5832 | 0.00% |
9 | bep-relay | 3 | 0.00% | 1626 | 0.00% |
10 | ncp | 2 | 0.00% | 1503 | 0.00% |
11 | mqtt | 2 | 0.00% | 531 | 0.00% |
12 | h2 | 1 | 0.00% | 260 | 0.00% |
13 | fbvp | 4 | 0.00% | 260 | 0.00% |
14 | h2-14 | 3 | 0.00% | 167 | 0.00% |
15 | http/1.0 | 3 | 0.00% | 124 | 0.00% |
16 | spdy/3.1 | 1 | 0.00% | 9 | 0.00% |
Popular ALPNs supported by clients
Rank | ALPN | Fingerprints | % Fingerprints | Connections | % Connections |
---|---|---|---|---|---|
1 | http/1.1 | 23757890 | 37.16% | 17541233481 | 82.73% |
2 | h2 | 22939020 | 35.87% | 14412183357 | 67.97% |
3 | spdy/3.1 | 1110 | 0.00% | 98833687 | 0.47% |
4 | grpc-exp | 93 | 0.00% | 96740715 | 0.46% |
5 | spdy/3 | 722 | 0.00% | 95535631 | 0.45% |
6 | h2-fb | 109 | 0.00% | 91240139 | 0.43% |
7 | h2-14 | 373 | 0.00% | 79913469 | 0.38% |
8 | h2-16 | 272 | 0.00% | 79697398 | 0.38% |
9 | h2-15 | 267 | 0.00% | 79695675 | 0.38% |
10 | http/1.0 | 127 | 0.00% | 5060789 | 0.02% |
11 | spdy/2 | 421 | 0.00% | 3602180 | 0.02% |
12 | spdy/1 | 302 | 0.00% | 3542815 | 0.02% |
13 | h2c | 100 | 0.00% | 3539154 | 0.02% |
14 | http/0.9 | 86 | 0.00% | 3539066 | 0.02% |
15 | hq | 64 | 0.00% | 3531285 | 0.02% |
16 | apns-security-v3 | 16 | 0.00% | 1688899 | 0.01% |
17 | apns-pack-v1 | 16 | 0.00% | 1681334 | 0.01% |
18 | https/1.1 | 2 | 0.00% | 836078 | 0.00% |
19 | quic | 36 | 0.00% | 231027 | 0.00% |
20 | x-amzn-mqtt-ca | 30 | 0.00% | 167594 | 0.00% |