Top Extensions (past week)

Rank Extension Fingerprints Connections
1 supported_groups (0x000a) 5808 99.7%
2 signature_algorithms (0x000d) 5449 99.4%
3 server_name (0x0000) 5758 99.2%
4 ec_point_formats (0x000b) 5763 97.3%
5 extended_master_secret (0x0017) 3427 90.0%
6 status_request (0x0005) 2822 85.5%
7 renegotiation_info (0xff01) 2745 84.3%
8 application_layer_protocol_negotiation (0x0010) 2368 78.6%
9 supported_versions (0x002b) 1051 68.0%
10 key_share (0x0033) 961 67.9%
11 psk_key_exchange_modes (0x002d) 944 67.1%
12 signed_certificate_timestamp (0x0012) 1054 66.4%
13 padding (0x0015) 1534 61.3%
14 GREASE (0x0a0a) 498 59.2%
15 SessionTicket TLS (0x0023) 4332 56.1%
16 compressed_certificate (0x001b) 125 28.9%
17 pre_shared_key (0x0029) 222 9.1%
18 NPN (0x3374) 940 8.3%
19 heartbeat (0x000f) 1584 3.8%
20 record_size_limit (0x001c) 192 3.7%
21 token_binding (0x0018) 125 3.6%
22 encrypt_then_mac (0x0016) 683 2.5%
23 early_data (0x002a) 29 2.3%
24 ChannelID (0x7550) 270 0.7%
25 post_handshake_auth (0x0031) 44 0.5%
26 status_request_v2 (0x0011) 64 0.1%
27 signature_algorithms_cert (0x0032) 59 0.1%
28 Unknown (0xff03) 21 0.0%
29 extended_random (0x0028) 43 0.0%
30 LEGACY_token_binding (0x5500) 15 0.0%
31 LEGACY_ChannelID (0x754f) 33 0.0%
32 LEGACY_padding (0x8b47) 13 0.0%
33 Unknown (0x4242) 3 0.0%
34 Unknown (0x2cf0) 3 0.0%
35 Unknown (0x2cf2) 3 0.0%
36 Unknown (0xff02) 2 0.0%
37 max_fragment_length (0x0001) 2 0.0%
38 Unknown (0xef00) 1 0.0%
39 Unknown (0xffce) 4 0.0%
40 cert_type (0x0009) 1 0.0%
41 Unknown (0x2cee) 1 0.0%