19e9c51f437497b4

Seen (all time)
(past week)
152M times (0.98%)
12M times (1.32%)
Rank (all time)
(past week)
17 / 9108431
14 / 1831336
TLS VersionTLS 1.0
Handshake VersionTLS 1.2
Cipher Suites
exact match
GREASE (0x0a0a)
TLS_CHACHA20_POLY1305_SHA256 (0x1303)
TLS_AES_128_GCM_SHA256 (0x1301)
TLS_AES_256_GCM_SHA384 (0x1302)
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca9)
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca8)
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 (0xc02b)
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 (0xc02c)
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030)
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)
TLS_RSA_WITH_AES_128_GCM_SHA256 (0x009c)
TLS_RSA_WITH_AES_256_GCM_SHA384 (0x009d)
TLS_RSA_WITH_AES_128_CBC_SHA (0x002f)
TLS_RSA_WITH_AES_256_CBC_SHA (0x0035)
Compression Methodsnull (0x00)
Extensions
exact match
GREASE (0x0a0a)
server_name (0x0000)
extended_master_secret (0x0017)
renegotiation_info (0xff01)
supported_groups (0x000a)
ec_point_formats (0x000b)
SessionTicket TLS (0x0023)
application_layer_protocol_negotiation (0x0010)
status_request (0x0005)
signature_algorithms (0x000d)
signed_certificate_timestamp (0x0012)
key_share (0x0033)
psk_key_exchange_modes (0x002d)
supported_versions (0x002b)
compressed_certificate (0x001b)
GREASE (0x0a0a)
pre_shared_key (0x0029)
Supported Groups
exact match
GREASE (0x0a0a)
x25519 (0x001d)
secp256r1 (0x0017)
secp384r1 (0x0018)
Signature Algorithms
exact match
ecdsa_secp256r1_sha256 (0x0403)
rsa_pss_rsae_sha256 (0x0804)
rsa_pkcs1_sha256 (0x0401)
ecdsa_secp384r1_sha384 (0x0503)
rsa_pss_rsae_sha384 (0x0805)
rsa_pkcs1_sha384 (0x0501)
rsa_pss_rsae_sha512 (0x0806)
rsa_pkcs1_sha512 (0x0601)
EC Point Formatsuncompressed (0x00)
ALPNh2
http/1.1
Key Share GREASE (0x0a0a) - 1-byte key
x25519 (0x001d) - 32-byte key
PSK Key Exchange Modes psk_dhe_ke (0x01)
Supported Versions
exact match
GREASE (0x0a0a)
TLS 1.3 (0x0304)
TLS 1.2 (0x0303)
TLS 1.1 (0x0302)
TLS 1.0 (0x0301)
Certificate Compression Algorithms brotli (0x0002)
Record Size Limit
nid1867240258588153780
Cluster Cluster #2
621 fingerprints, comprising 39.1% of connections
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Labels
uTLS generated code
// import tls "github.com/refraction-networking/utls"
tcpConn, err := net.Dial("tcp", "tlsfingerprint.io:443")
if err != nil {
	fmt.Printf("net.Dial() failed: %+v\n", err)
	return
}

config := tls.Config{ServerName: "tlsfingerprint.io"}
// This fingerprint includes feature(s), not fully supported by TLS.
// uTLS client with this fingerprint will only be able to to talk to servers,
// that also do not support those features. 
tlsConn := tls.UClient(tcpConn, &tlsConfig, tls.HelloCustom)
clientHelloSpec := tls.ClientHelloSpec {
	CipherSuites: []uint16{
		tls.GREASE_PLACEHOLDER,
		tls.TLS_CHACHA20_POLY1305_SHA256,
		tls.TLS_AES_128_GCM_SHA256,
		tls.TLS_AES_256_GCM_SHA384,
		tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,
		tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
		tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
		tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
		tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
		tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
		tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
		tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
		tls.TLS_RSA_WITH_AES_128_GCM_SHA256,
		tls.TLS_RSA_WITH_AES_256_GCM_SHA384,
		tls.TLS_RSA_WITH_AES_128_CBC_SHA,
		tls.TLS_RSA_WITH_AES_256_CBC_SHA,
	},
	CompressionMethods: []byte{
		0x00, // compressionNone
	},
	Extensions: []tls.TLSExtension{
		&tls.UtlsGREASEExtension{},
		&tls.SNIExtension{},
		&tls.UtlsExtendedMasterSecretExtension{},
		&tls.RenegotiationInfoExtension{Renegotiation: tls.RenegotiateOnceAsClient},
		&tls.SupportedCurvesExtension{[]tls.CurveID{
			tls.CurveID(tls.GREASE_PLACEHOLDER),
			tls.X25519,
			tls.CurveP256,
			tls.CurveP384,
		}},
		&tls.SupportedPointsExtension{SupportedPoints: []byte{
			0x00, // pointFormatUncompressed
		}},
		&tls.SessionTicketExtension{},
		&tls.ALPNExtension{AlpnProtocols: []string{"h2","http/1.1"}},
		&tls.StatusRequestExtension{},
		&tls.SignatureAlgorithmsExtension{SupportedSignatureAlgorithms: []tls.SignatureScheme{
			tls.ECDSAWithP256AndSHA256,
			tls.PSSWithSHA256,
			tls.PKCS1WithSHA256,
			tls.ECDSAWithP384AndSHA384,
			tls.PSSWithSHA384,
			tls.PKCS1WithSHA384,
			tls.PSSWithSHA512,
			tls.PKCS1WithSHA512,
		},},
		&tls.SCTExtension{},
		&tls.KeyShareExtension{[]tls.KeyShare{
			{Group: tls.CurveID(tls.GREASE_PLACEHOLDER), Data: []byte{0}},
			{Group: tls.X25519},
		}},
		&tls.PSKKeyExchangeModesExtension{[]uint8{
			tls.PskModeDHE,
		}},
		&tls.SupportedVersionsExtension{[]uint16{
			tls.GREASE_PLACEHOLDER,
			tls.VersionTLS13,
			tls.VersionTLS12,
			tls.VersionTLS11,
			tls.VersionTLS10,
		}},
		&tls.UtlsCompressCertExtension{},
		&tls.UtlsGREASEExtension{},
		&tls.GenericExtension {Id: 0x0029}, // WARNING: UNKNOWN EXTENSION, USE AT YOUR OWN RISK
	},
}
tlsConn.ApplyPreset(&clientHelloSpec)
        
n, err = tlsConn.Write([]byte("Hello, World!"))
// or tlsConn.Handshake() for better control

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