Top Extensions (past week)

Rank Extension Fingerprints Connections
1 supported_groups (0x000a) 5930 99.9%
2 signature_algorithms (0x000d) 5772 99.8%
3 server_name (0x0000) 5486 99.6%
4 ec_point_formats (0x000b) 5780 97.9%
5 extended_master_secret (0x0017) 4188 96.5%
6 renegotiation_info (0xff01) 2731 89.3%
7 application_layer_protocol_negotiation (0x0010) 2860 86.7%
8 status_request (0x0005) 2799 86.2%
9 supported_versions (0x002b) 2754 85.0%
10 key_share (0x0033) 2620 84.8%
11 psk_key_exchange_modes (0x002d) 2469 84.1%
12 signed_certificate_timestamp (0x0012) 1115 71.3%
13 padding (0x0015) 1917 70.2%
14 GREASE (0x0a0a) 542 69.7%
15 compressed_certificate (0x001b) 418 61.6%
16 SessionTicket TLS (0x0023) 3683 56.8%
17 Unknown (0x4469) 150 32.2%
18 pre_shared_key (0x0029) 521 11.6%
19 encrypt_then_mac (0x0016) 1182 6.2%
20 post_handshake_auth (0x0031) 301 4.6%
21 NPN (0x3374) 714 4.6%
22 record_size_limit (0x001c) 330 3.5%
23 Unknown (0x0022) 140 2.4%
24 heartbeat (0x000f) 954 1.3%
25 early_data (0x002a) 50 0.8%
26 signature_algorithms_cert (0x0032) 263 0.7%
27 status_request_v2 (0x0011) 190 0.2%
28 Unknown (0xff04) 2 0.1%
29 server_certificate_type (0x0014) 2 0.0%
30 ChannelID (0x7550) 114 0.0%
31 Unknown (0xfe0d) 32 0.0%
32 token_binding (0x0018) 35 0.0%
33 max_fragment_length (0x0001) 20 0.0%
34 extended_random (0x0028) 26 0.0%
35 LEGACY_ChannelID (0x754f) 11 0.0%
36 Unknown (0xff03) 9 0.0%
37 Unknown (0xef00) 2 0.0%
38 cert_type (0x0009) 2 0.0%
39 LEGACY_padding (0x8b47) 6 0.0%
40 LEGACY_token_binding (0x5500) 4 0.0%
41 Unknown (0x270f) 1 0.0%
42 Unknown (0x2222) 1 0.0%