Top Extensions (past week)

Rank Extension Fingerprints Connections
1 supported_groups (0x000a) 6112 99.7%
2 signature_algorithms (0x000d) 5892 99.2%
3 server_name (0x0000) 6545 98.9%
4 ec_point_formats (0x000b) 6071 98.9%
5 GREASE (0x0a0a) 683 97.6%
6 extended_master_secret (0x0017) 3745 92.4%
7 status_request (0x0005) 2961 86.0%
8 renegotiation_info (0xff01) 2799 85.8%
9 application_layer_protocol_negotiation (0x0010) 2601 82.0%
10 supported_versions (0x002b) 1551 75.1%
11 key_share (0x0033) 1448 74.8%
12 psk_key_exchange_modes (0x002d) 1376 73.6%
13 signed_certificate_timestamp (0x0012) 1103 69.6%
14 padding (0x0015) 1737 67.2%
15 SessionTicket TLS (0x0023) 4082 64.9%
16 compressed_certificate (0x001b) 185 40.4%
17 pre_shared_key (0x0029) 257 8.1%
18 NPN (0x3374) 946 5.4%
19 encrypt_then_mac (0x0016) 773 4.2%
20 record_size_limit (0x001c) 255 4.2%
21 heartbeat (0x000f) 1296 3.8%
22 token_binding (0x0018) 130 2.4%
23 post_handshake_auth (0x0031) 111 1.0%
24 early_data (0x002a) 28 0.8%
25 ChannelID (0x7550) 240 0.6%
26 status_request_v2 (0x0011) 88 0.3%
27 signature_algorithms_cert (0x0032) 95 0.3%
28 Unknown (0xff03) 14 0.0%
29 extended_random (0x0028) 35 0.0%
30 LEGACY_ChannelID (0x754f) 24 0.0%
31 Unknown (0x4242) 4 0.0%
32 LEGACY_token_binding (0x5500) 11 0.0%
33 Unknown (0x0022) 10 0.0%
34 LEGACY_padding (0x8b47) 12 0.0%
35 Unknown (0xef00) 1 0.0%
36 Unknown (0x2cf0) 1 0.0%
37 Unknown (0x2cf2) 1 0.0%
38 max_fragment_length (0x0001) 3 0.0%
39 Unknown (0xff02) 1 0.0%
40 Unknown (0xffce) 2 0.0%
41 cert_type (0x0009) 1 0.0%
42 Unknown (0xfff0) 1 0.0%