Top Extensions (past week)

Rank Extension Fingerprints Connections
1 signature_algorithms (0x000d) 5741 99.2%
2 supported_groups (0x000a) 5851 98.4%
3 server_name (0x0000) 6360 98.3%
4 ec_point_formats (0x000b) 5804 98.2%
5 GREASE (0x0a0a) 722 93.7%
6 renegotiation_info (0xff01) 2658 83.9%
7 extended_master_secret (0x0017) 3690 82.5%
8 status_request (0x0005) 2745 81.6%
9 SessionTicket TLS (0x0023) 3757 74.3%
10 application_layer_protocol_negotiation (0x0010) 2507 68.3%
11 supported_versions (0x002b) 1839 64.2%
12 key_share (0x0033) 1723 63.6%
13 padding (0x0015) 1685 62.8%
14 psk_key_exchange_modes (0x002d) 1626 62.6%
15 signed_certificate_timestamp (0x0012) 969 53.4%
16 compressed_certificate (0x001b) 205 36.0%
17 Unknown (0x4469) 34 25.7%
18 pre_shared_key (0x0029) 309 7.1%
19 encrypt_then_mac (0x0016) 862 6.4%
20 record_size_limit (0x001c) 320 5.6%
21 heartbeat (0x000f) 1163 5.0%
22 NPN (0x3374) 850 4.5%
23 Unknown (0x0022) 83 2.7%
24 post_handshake_auth (0x0031) 187 2.6%
25 signature_algorithms_cert (0x0032) 146 0.7%
26 token_binding (0x0018) 63 0.3%
27 ChannelID (0x7550) 186 0.3%
28 status_request_v2 (0x0011) 121 0.2%
29 early_data (0x002a) 36 0.2%
30 max_fragment_length (0x0001) 24 0.0%
31 Unknown (0xff03) 8 0.0%
32 extended_random (0x0028) 31 0.0%
33 Unknown (0x4242) 3 0.0%
34 LEGACY_token_binding (0x5500) 10 0.0%
35 LEGACY_ChannelID (0x754f) 13 0.0%
36 LEGACY_padding (0x8b47) 9 0.0%
37 Unknown (0xef00) 1 0.0%
38 Unknown (0x2cf0) 1 0.0%
39 Unknown (0x2cf2) 1 0.0%
40 Unknown (0xffce) 1 0.0%