Top Extensions (past week)

Rank Extension Fingerprints Connections
1 supported_groups (0x000a) 6610 99.6%
2 signature_algorithms (0x000d) 6265 99.2%
3 server_name (0x0000) 6993 99.0%
4 ec_point_formats (0x000b) 6568 97.2%
5 extended_master_secret (0x0017) 3612 88.7%
6 status_request (0x0005) 3184 85.7%
7 renegotiation_info (0xff01) 3112 83.3%
8 application_layer_protocol_negotiation (0x0010) 2659 76.6%
9 signed_certificate_timestamp (0x0012) 1215 66.8%
10 supported_versions (0x002b) 972 62.6%
11 key_share (0x0033) 878 62.5%
12 psk_key_exchange_modes (0x002d) 884 61.8%
13 GREASE (0x0a0a) 601 59.4%
14 padding (0x0015) 1622 58.3%
15 SessionTicket TLS (0x0023) 4511 55.9%
16 compressed_certificate (0x001b) 146 28.9%
17 NPN (0x3374) 1109 15.6%
18 pre_shared_key (0x0029) 198 6.0%
19 token_binding (0x0018) 163 3.7%
20 heartbeat (0x000f) 1537 3.7%
21 record_size_limit (0x001c) 177 3.5%
22 encrypt_then_mac (0x0016) 516 2.2%
23 early_data (0x002a) 23 2.2%
24 ChannelID (0x7550) 356 1.0%
25 post_handshake_auth (0x0031) 38 0.2%
26 signature_algorithms_cert (0x0032) 46 0.1%
27 status_request_v2 (0x0011) 49 0.1%
28 Unknown (0xff03) 26 0.1%
29 extended_random (0x0028) 56 0.0%
30 LEGACY_ChannelID (0x754f) 45 0.0%
31 LEGACY_token_binding (0x5500) 21 0.0%
32 LEGACY_padding (0x8b47) 22 0.0%
33 Unknown (0x4242) 2 0.0%
34 Unknown (0xff02) 2 0.0%
35 Unknown (0x2cf0) 3 0.0%
36 Unknown (0x2cf2) 3 0.0%
37 Unknown (0xd50a) 6 0.0%
38 Unknown (0xef00) 1 0.0%
39 max_fragment_length (0x0001) 2 0.0%
40 Unknown (0x2cee) 1 0.0%
41 Unknown (0xffce) 1 0.0%