Top Extensions (past week)

Rank Extension Fingerprints Connections
1 GREASE (0x0a0a) 653 112.2%
2 supported_groups (0x000a) 5632 99.8%
3 ec_point_formats (0x000b) 5586 99.6%
4 signature_algorithms (0x000d) 5461 99.2%
5 server_name (0x0000) 6103 98.7%
6 extended_master_secret (0x0017) 3508 92.8%
7 renegotiation_info (0xff01) 2525 86.2%
8 status_request (0x0005) 2642 85.4%
9 application_layer_protocol_negotiation (0x0010) 2392 78.6%
10 SessionTicket TLS (0x0023) 3718 74.6%
11 supported_versions (0x002b) 1590 74.1%
12 key_share (0x0033) 1481 73.5%
13 psk_key_exchange_modes (0x002d) 1415 71.3%
14 padding (0x0015) 1557 65.8%
15 signed_certificate_timestamp (0x0012) 983 65.1%
16 compressed_certificate (0x001b) 165 46.5%
17 record_size_limit (0x001c) 250 7.0%
18 pre_shared_key (0x0029) 249 6.5%
19 heartbeat (0x000f) 1152 4.3%
20 encrypt_then_mac (0x0016) 768 4.2%
21 NPN (0x3374) 852 4.0%
22 token_binding (0x0018) 116 2.1%
23 post_handshake_auth (0x0031) 144 1.4%
24 signature_algorithms_cert (0x0032) 112 0.5%
25 ChannelID (0x7550) 218 0.3%
26 early_data (0x002a) 31 0.2%
27 status_request_v2 (0x0011) 90 0.2%
28 Unknown (0xff03) 10 0.0%
29 max_fragment_length (0x0001) 31 0.0%
30 extended_random (0x0028) 35 0.0%
31 Unknown (0x4242) 3 0.0%
32 LEGACY_token_binding (0x5500) 12 0.0%
33 Unknown (0x0022) 13 0.0%
34 LEGACY_ChannelID (0x754f) 14 0.0%
35 Unknown (0xef00) 1 0.0%
36 Unknown (0x2cf0) 1 0.0%
37 Unknown (0x2cf2) 1 0.0%
38 LEGACY_padding (0x8b47) 10 0.0%
39 Unknown (0xff02) 2 0.0%
40 Unknown (0xffce) 1 0.0%