Top Extensions (past week)

Rank Extension Fingerprints Connections
1 supported_groups (0x000a) 4202 99.7%
2 signature_algorithms (0x000d) 4042 99.6%
3 server_name (0x0000) 4135 99.4%
4 ec_point_formats (0x000b) 4173 99.0%
5 GREASE (0x0a0a) 535 98.9%
6 extended_master_secret (0x0017) 2721 89.1%
7 renegotiation_info (0xff01) 2103 87.3%
8 status_request (0x0005) 2161 87.0%
9 application_layer_protocol_negotiation (0x0010) 1899 78.9%
10 supported_versions (0x002b) 1181 73.2%
11 key_share (0x0033) 1106 73.0%
12 psk_key_exchange_modes (0x002d) 1056 71.8%
13 padding (0x0015) 1258 70.4%
14 signed_certificate_timestamp (0x0012) 842 67.6%
15 SessionTicket TLS (0x0023) 2942 67.0%
16 compressed_certificate (0x001b) 142 40.5%
17 pre_shared_key (0x0029) 199 7.3%
18 NPN (0x3374) 692 5.2%
19 record_size_limit (0x001c) 179 4.0%
20 encrypt_then_mac (0x0016) 536 4.0%
21 heartbeat (0x000f) 973 3.4%
22 token_binding (0x0018) 89 2.2%
23 post_handshake_auth (0x0031) 86 1.5%
24 early_data (0x002a) 17 0.7%
25 ChannelID (0x7550) 161 0.4%
26 signature_algorithms_cert (0x0032) 62 0.1%
27 status_request_v2 (0x0011) 54 0.1%
28 Unknown (0xff03) 8 0.0%
29 extended_random (0x0028) 26 0.0%
30 LEGACY_ChannelID (0x754f) 16 0.0%
31 LEGACY_token_binding (0x5500) 8 0.0%
32 Unknown (0x4242) 3 0.0%
33 Unknown (0x0022) 5 0.0%
34 LEGACY_padding (0x8b47) 8 0.0%
35 Unknown (0x2cf0) 1 0.0%
36 Unknown (0x2cf2) 1 0.0%
37 Unknown (0xef00) 1 0.0%
38 max_fragment_length (0x0001) 1 0.0%