Top Extensions (past week)

Rank Extension Fingerprints Connections
1 supported_groups (0x000a) 5176 99.9%
2 signature_algorithms (0x000d) 4987 99.6%
3 server_name (0x0000) 5016 99.6%
4 ec_point_formats (0x000b) 5094 98.9%
5 extended_master_secret (0x0017) 3575 96.1%
6 renegotiation_info (0xff01) 2620 89.9%
7 status_request (0x0005) 2584 89.2%
8 application_layer_protocol_negotiation (0x0010) 2432 87.0%
9 supported_versions (0x002b) 1946 84.1%
10 key_share (0x0033) 1827 83.8%
11 psk_key_exchange_modes (0x002d) 1745 83.4%
12 signed_certificate_timestamp (0x0012) 1005 75.7%
13 padding (0x0015) 1634 72.1%
14 GREASE (0x0a0a) 434 70.5%
15 SessionTicket TLS (0x0023) 3422 54.6%
16 compressed_certificate (0x001b) 269 37.1%
17 Unknown (0x4469) 56 27.5%
18 pre_shared_key (0x0029) 399 9.6%
19 encrypt_then_mac (0x0016) 810 4.7%
20 NPN (0x3374) 688 4.0%
21 record_size_limit (0x001c) 290 2.8%
22 Unknown (0x0022) 100 2.3%
23 post_handshake_auth (0x0031) 180 2.1%
24 heartbeat (0x000f) 990 1.6%
25 early_data (0x002a) 44 0.8%
26 signature_algorithms_cert (0x0032) 163 0.3%
27 ChannelID (0x7550) 141 0.2%
28 status_request_v2 (0x0011) 133 0.1%
29 token_binding (0x0018) 50 0.1%
30 Unknown (0xff03) 12 0.0%
31 max_fragment_length (0x0001) 28 0.0%
32 extended_random (0x0028) 28 0.0%
33 LEGACY_ChannelID (0x754f) 13 0.0%
34 Unknown (0x4242) 3 0.0%
35 LEGACY_token_binding (0x5500) 4 0.0%
36 LEGACY_padding (0x8b47) 4 0.0%
37 Unknown (0xef00) 1 0.0%
38 server_certificate_type (0x0014) 1 0.0%
39 Unknown (0x2cf0) 1 0.0%
40 Unknown (0x2cf2) 1 0.0%
41 Unknown (0xffce) 2 0.0%
42 Unknown (0xff02) 1 0.0%