Top Extensions (past week)

Rank Extension Fingerprints Connections
1 supported_groups (0x000a) 1774 99.9%
2 signature_algorithms (0x000d) 1749 99.6%
3 server_name (0x0000) 1653 99.1%
4 ec_point_formats (0x000b) 1676 90.1%
5 extended_master_secret (0x0017) 1425 88.5%
6 application_layer_protocol_negotiation (0x0010) 964 70.3%
7 renegotiation_info (0xff01) 912 68.4%
8 supported_versions (0x002b) 1024 65.3%
9 key_share (0x0033) 1003 65.2%
10 psk_key_exchange_modes (0x002d) 955 61.8%
11 SessionTicket TLS (0x0023) 1010 58.9%
12 status_request (0x0005) 805 56.9%
13 padding (0x0015) 665 42.7%
14 signed_certificate_timestamp (0x0012) 329 23.4%
15 GREASE (0x0a0a) 151 22.4%
16 post_handshake_auth (0x0031) 235 20.2%
17 encrypt_then_mac (0x0016) 472 20.1%
18 pre_shared_key (0x0029) 254 12.7%
19 compressed_certificate (0x001b) 107 12.2%
20 NPN (0x3374) 210 7.0%
21 record_size_limit (0x001c) 96 3.5%
22 encrypted_client_hello (0xfe0d) 20 3.1%
23 delegate_credential (0x0022) 34 2.9%
24 early_data (0x002a) 24 2.2%
25 heartbeat (0x000f) 159 1.8%
26 signature_algorithms_cert (0x0032) 75 1.5%
27 ChannelID (0x7550) 15 0.7%
28 status_request_v2 (0x0011) 48 0.5%
29 server_certificate_type (0x0014) 2 0.5%
30 application_settings (0x4469) 11 0.4%
31 max_fragment_length (0x0001) 18 0.1%
32 Unknown (0xff04) 2 0.1%
33 token_binding (0x0018) 4 0.0%
34 LEGACY_ChannelID (0x754f) 3 0.0%
35 extended_random (0x0028) 5 0.0%
36 Unknown (0xef00) 1 0.0%
37 cert_type (0x0009) 1 0.0%