Top Extensions (past week)

Rank Extension Fingerprints Connections
1 supported_groups (0x000a) 5821 99.8%
2 signature_algorithms (0x000d) 5883 99.4%
3 server_name (0x0000) 5828 99.3%
4 ec_point_formats (0x000b) 5712 99.2%
5 extended_master_secret (0x0017) 4095 94.6%
6 application_layer_protocol_negotiation (0x0010) 2744 83.2%
7 renegotiation_info (0xff01) 2740 81.2%
8 status_request (0x0005) 2866 80.3%
9 supported_versions (0x002b) 2479 75.8%
10 key_share (0x0033) 2335 75.2%
11 psk_key_exchange_modes (0x002d) 2199 74.0%
12 SessionTicket TLS (0x0023) 3711 66.3%
13 padding (0x0015) 1768 66.2%
14 signed_certificate_timestamp (0x0012) 1082 57.3%
15 GREASE (0x0a0a) 523 53.3%
16 compressed_certificate (0x001b) 381 47.8%
17 Unknown (0x4469) 104 33.9%
18 encrypt_then_mac (0x0016) 1067 12.5%
19 post_handshake_auth (0x0031) 267 9.5%
20 NPN (0x3374) 784 8.5%
21 pre_shared_key (0x0029) 427 5.9%
22 record_size_limit (0x001c) 309 4.9%
23 Unknown (0x0022) 120 4.1%
24 heartbeat (0x000f) 1030 2.7%
25 signature_algorithms_cert (0x0032) 207 0.7%
26 early_data (0x002a) 47 0.6%
27 status_request_v2 (0x0011) 154 0.2%
28 ChannelID (0x7550) 139 0.1%
29 token_binding (0x0018) 54 0.1%
30 max_fragment_length (0x0001) 26 0.0%
31 Unknown (0xff03) 12 0.0%
32 LEGACY_ChannelID (0x754f) 15 0.0%
33 extended_random (0x0028) 23 0.0%
34 Unknown (0xef00) 1 0.0%
35 server_certificate_type (0x0014) 2 0.0%
36 LEGACY_token_binding (0x5500) 5 0.0%
37 LEGACY_padding (0x8b47) 5 0.0%
38 Unknown (0x4242) 1 0.0%
39 Unknown (0xfe0d) 1 0.0%
40 Unknown (0xff02) 2 0.0%