Top Extensions (past week)

Rank Extension Fingerprints Connections
1 supported_groups (0x000a) 6361 99.8%
2 signature_algorithms (0x000d) 6294 99.6%
3 server_name (0x0000) 6106 98.6%
4 ec_point_formats (0x000b) 6145 91.3%
5 extended_master_secret (0x0017) 4803 90.2%
6 renegotiation_info (0xff01) 2763 70.7%
7 application_layer_protocol_negotiation (0x0010) 3205 69.6%
8 supported_versions (0x002b) 3435 63.9%
9 key_share (0x0033) 3243 63.7%
10 SessionTicket TLS (0x0023) 3822 62.6%
11 psk_key_exchange_modes (0x002d) 3048 60.1%
12 status_request (0x0005) 2730 59.7%
13 padding (0x0015) 2137 40.6%
14 signed_certificate_timestamp (0x0012) 1021 23.1%
15 GREASE (0x0a0a) 371 20.8%
16 encrypt_then_mac (0x0016) 1772 18.6%
17 post_handshake_auth (0x0031) 688 18.0%
18 pre_shared_key (0x0029) 638 12.3%
19 compressed_certificate (0x001b) 257 10.0%
20 NPN (0x3374) 734 6.1%
21 record_size_limit (0x001c) 312 4.6%
22 delegate_credential (0x0022) 132 4.2%
23 encrypted_client_hello (0xfe0d) 65 3.9%
24 early_data (0x002a) 56 2.0%
25 heartbeat (0x000f) 892 1.9%
26 signature_algorithms_cert (0x0032) 287 1.7%
27 ChannelID (0x7550) 68 1.6%
28 server_certificate_type (0x0014) 2 0.7%
29 status_request_v2 (0x0011) 216 0.5%
30 Unknown (0xff04) 2 0.1%
31 max_fragment_length (0x0001) 34 0.0%
32 token_binding (0x0018) 24 0.0%
33 application_settings (0x4469) 44 0.0%
34 Unknown (0xff03) 2 0.0%
35 extended_random (0x0028) 25 0.0%
36 LEGACY_ChannelID (0x754f) 9 0.0%
37 Unknown (0xef00) 1 0.0%
38 LEGACY_padding (0x8b47) 4 0.0%
39 LEGACY_token_binding (0x5500) 2 0.0%
40 trusted_ca_keys (0x0003) 1 0.0%
41 Unknown (0x0042) 1 0.0%
42 Unknown (0x0043) 1 0.0%
43 client_certificate_url (0x0002) 2 0.0%
44 truncated_hmac (0x0004) 2 0.0%