Top Extensions (past week)

Rank Extension Fingerprints Connections
1 supported_groups (0x000a) 5005 99.9%
2 signature_algorithms (0x000d) 4856 99.6%
3 server_name (0x0000) 4831 99.3%
4 ec_point_formats (0x000b) 4916 98.9%
5 extended_master_secret (0x0017) 3533 95.2%
6 renegotiation_info (0xff01) 2479 89.2%
7 status_request (0x0005) 2481 88.0%
8 application_layer_protocol_negotiation (0x0010) 2374 85.9%
9 supported_versions (0x002b) 2008 83.6%
10 key_share (0x0033) 1895 83.4%
11 psk_key_exchange_modes (0x002d) 1813 82.8%
12 signed_certificate_timestamp (0x0012) 984 74.1%
13 padding (0x0015) 1633 72.4%
14 GREASE (0x0a0a) 440 70.2%
15 SessionTicket TLS (0x0023) 3298 55.7%
16 compressed_certificate (0x001b) 295 43.6%
17 Unknown (0x4469) 67 28.4%
18 pre_shared_key (0x0029) 385 8.5%
19 encrypt_then_mac (0x0016) 860 4.8%
20 NPN (0x3374) 663 4.0%
21 record_size_limit (0x001c) 286 3.0%
22 heartbeat (0x000f) 950 2.5%
23 Unknown (0x0022) 107 2.5%
24 post_handshake_auth (0x0031) 197 2.3%
25 early_data (0x002a) 49 0.7%
26 signature_algorithms_cert (0x0032) 185 0.4%
27 status_request_v2 (0x0011) 136 0.2%
28 ChannelID (0x7550) 134 0.2%
29 token_binding (0x0018) 37 0.1%
30 max_fragment_length (0x0001) 27 0.0%
31 Unknown (0xff03) 7 0.0%
32 extended_random (0x0028) 23 0.0%
33 server_certificate_type (0x0014) 1 0.0%
34 LEGACY_padding (0x8b47) 6 0.0%
35 LEGACY_ChannelID (0x754f) 17 0.0%
36 LEGACY_token_binding (0x5500) 5 0.0%
37 Unknown (0x4242) 2 0.0%
38 Unknown (0xef00) 1 0.0%
39 cookie (0x002c) 3 0.0%
40 Unknown (0x2cf0) 1 0.0%
41 Unknown (0x2cf2) 1 0.0%