Top Extensions (past week)

Rank Extension Fingerprints Connections
1 supported_groups (0x000a) 6370 99.9%
2 signature_algorithms (0x000d) 6387 99.7%
3 server_name (0x0000) 6080 98.1%
4 ec_point_formats (0x000b) 6162 95.1%
5 extended_master_secret (0x0017) 4545 92.4%
6 application_layer_protocol_negotiation (0x0010) 3070 76.3%
7 renegotiation_info (0xff01) 2865 75.5%
8 supported_versions (0x002b) 3119 73.0%
9 key_share (0x0033) 3000 72.8%
10 status_request (0x0005) 2821 70.9%
11 psk_key_exchange_modes (0x002d) 2804 70.1%
12 padding (0x0015) 2010 54.2%
13 SessionTicket TLS (0x0023) 3790 48.3%
14 signed_certificate_timestamp (0x0012) 1030 42.3%
15 GREASE (0x0a0a) 424 39.4%
16 compressed_certificate (0x001b) 283 28.7%
17 encrypt_then_mac (0x0016) 1430 14.6%
18 post_handshake_auth (0x0031) 512 11.8%
19 pre_shared_key (0x0029) 621 9.6%
20 NPN (0x3374) 662 8.4%
21 signature_algorithms_cert (0x0032) 280 3.5%
22 status_request_v2 (0x0011) 214 2.6%
23 record_size_limit (0x001c) 381 2.3%
24 Unknown (0x0022) 171 2.0%
25 early_data (0x002a) 60 1.8%
26 heartbeat (0x000f) 918 1.7%
27 Unknown (0xfe0d) 47 1.0%
28 ChannelID (0x7550) 102 0.2%
29 token_binding (0x0018) 28 0.1%
30 Unknown (0xff04) 2 0.1%
31 server_certificate_type (0x0014) 2 0.1%
32 application_settings (0x4469) 43 0.0%
33 max_fragment_length (0x0001) 34 0.0%
34 extended_random (0x0028) 31 0.0%
35 LEGACY_ChannelID (0x754f) 7 0.0%
36 Unknown (0xef00) 1 0.0%
37 Unknown (0xff03) 9 0.0%
38 LEGACY_padding (0x8b47) 5 0.0%
39 LEGACY_token_binding (0x5500) 3 0.0%
40 Unknown (0x0043) 3 0.0%
41 Unknown (0x0042) 2 0.0%