Top Extensions (past week)

Rank Extension Fingerprints Connections
1 supported_groups (0x000a) 6581 99.7%
2 signature_algorithms (0x000d) 6627 99.5%
3 server_name (0x0000) 6245 98.4%
4 ec_point_formats (0x000b) 6338 94.5%
5 extended_master_secret (0x0017) 4514 91.4%
6 SessionTicket TLS (0x0023) 3766 69.1%
7 application_layer_protocol_negotiation (0x0010) 2941 65.0%
8 renegotiation_info (0xff01) 2570 62.1%
9 status_request (0x0005) 2559 60.3%
10 supported_versions (0x002b) 3452 58.6%
11 key_share (0x0033) 3269 58.2%
12 psk_key_exchange_modes (0x002d) 2864 54.1%
13 padding (0x0015) 2077 32.2%
14 encrypt_then_mac (0x0016) 1615 21.0%
15 post_handshake_auth (0x0031) 623 18.6%
16 signed_certificate_timestamp (0x0012) 939 13.2%
17 pre_shared_key (0x0029) 616 8.7%
18 GREASE (0x0a0a) 325 8.4%
19 signature_algorithms_cert (0x0032) 322 7.9%
20 NPN (0x3374) 679 5.6%
21 status_request_v2 (0x0011) 204 5.2%
22 record_size_limit (0x001c) 319 4.6%
23 compressed_certificate (0x001b) 246 4.4%
24 delegate_credential (0x0022) 142 4.2%
25 encrypted_client_hello (0xfe0d) 71 3.8%
26 ChannelID (0x7550) 67 2.6%
27 heartbeat (0x000f) 1005 2.4%
28 early_data (0x002a) 54 0.7%
29 server_certificate_type (0x0014) 2 0.5%
30 Unknown (0xff04) 2 0.1%
31 max_fragment_length (0x0001) 29 0.1%
32 token_binding (0x0018) 20 0.0%
33 application_settings (0x4469) 45 0.0%
34 LEGACY_ChannelID (0x754f) 3 0.0%
35 extended_random (0x0028) 19 0.0%
36 Unknown (0xef00) 1 0.0%
37 Unknown (0xff03) 2 0.0%
38 Unknown (0x0043) 3 0.0%
39 LEGACY_padding (0x8b47) 2 0.0%
40 Unknown (0x0042) 2 0.0%
41 LEGACY_token_binding (0x5500) 1 0.0%
42 client_certificate_url (0x0002) 2 0.0%
43 truncated_hmac (0x0004) 2 0.0%
44 Unknown (0x270f) 1 0.0%