Network (ASN)
AS208172
first seen 2026-06-18 19:20 · last seen 2026-10-30 17:05 · JSON
Last 7 days (2 observations)
Distinct clients per day (last 30 days, peak 2/day)
Distinct clients are counted by IP-hash per complete UTC day — unlike observation counts this is insensitive to one chatty client, but NAT merges clients and address rotation splits them.
Decomposed attributes
| Network name | Proton AG |
|---|---|
| Domain | proton.ch |
Co-observed signals
Signals from other families seen in the same observation. A fingerprint spread thinly across many lower-layer signatures is a classic inconsistency signal.
TLS ClientHello (JA4)
| fingerprint | co-occurrences |
|---|---|
t13d1516h2_8daaf6152771_d8a2da3f94cd Match?Exact match in Thumbprint's published controlled catalog captures: chromium 149.0.7827.102, chrome 149.0.7827.102, chrome 149.0.7827.156, +25 more.The fingerprint page shows the full measured match list. More on the catalog. | 11 |
t13d1515h1_8daaf6152771_0a20fe35d3a5 | 11 |
t13d1515h1_8daaf6152771_de4a06bb82e3 | 9 |
q13d0311h3_55b375c5d22e_653d80c3fe9d Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chromium 149.0.7827.102, chrome 149.0.7827.102, +56 more.The fingerprint page shows the full measured match list. More on the catalog. | 3 |
t13d1715h2_5b57614c22b0_a54fffd0eb61 | 3 |
t13d4312h1_c7886603b240_b26ce05bbdd6 | 2 |
t13d181100_85036bcba153_d41ae481755e | 2 |
t13d1714h2_5b57614c22b0_53a6d0ab1c42 | 2 |
t13d1516h1_8daaf6152771_1a63afa7c478 | 2 |
t13d1516h2_8daaf6152771_02713d6af862 Match?Exact match in Thumbprint's published controlled catalog captures: chromium 131.0.6778.33, chromium 134.0.6998.35, chromium 133.0.6943.16.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
HTTP request (JA4H)
| fingerprint | co-occurrences |
|---|---|
ge11nn13enus_9db22d02e17a_000000000000_000000000000 | 16 |
ge11nn14enus_4a2973d235de_000000000000_000000000000 | 6 |
ge20nr11enus_187a9385d229_000000000000_000000000000 | 4 |
ge20nr13nbno_54728652be35_000000000000_000000000000 | 3 |
ge20nr13itit_5907f7c6644a_000000000000_000000000000 | 3 |
ge20nr13enus_54728652be35_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: chromium 149.0.7827.102, chrome 149.0.7827.102, edge 149.0.4022.52, +10 more.The fingerprint page shows the full measured match list. More on the catalog. | 2 |
ge11nn050000_b223a0ebb0b5_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: python-requests 2.34.2, python-requests 2.33.1, python-requests 2.32.3.The fingerprint page shows the full measured match list. More on the catalog. | 2 |
ge11nn040000_e1d2031bdfea_000000000000_000000000000 | 2 |
ge30nr13enus_54728652be35_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: chromium 149.0.7827.102, chrome 149.0.7827.102, edge 149.0.4022.52, +10 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
ge30nr14enus_186438911b7e_000000000000_000000000000 | 1 |
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
1:65536;2:0;4:6291456;6:262144|15663105|1:1:0:220|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chromium 149.0.7827.102, chrome 152.0.7977.83, +81 more.The fingerprint page shows the full measured match list. More on the catalog. | 7 |
1:65536;2:0;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chromium 131.0.6778.33, chromium 151.0.7922.34, chrome 151.0.7922.137, +57 more.The fingerprint page shows the full measured match list. More on the catalog. | 4 |
1:65536;2:0;4:131072;5:16384|12517377|3:0:0:22|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 155.0.1, +31 more.The fingerprint page shows the full measured match list. More on the catalog. | 2 |
1:65536;2:0;4:131072;5:16384|12517377|3:0:0:42|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 154.0, firefox 152.0.5, firefox 152.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
3:100;4:10485760;2:0|1048510465|0|m,s,a,p Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1, curl 8.5.0.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
2:0;4:2097152;3:100;9:1|10485760|0|m,s,p,a | 1 |
1:65536;2:0;4:131072;5:16384|12517377|5:0:0:22|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0.3, firefox 154.0, firefox 153.0, +12 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
1:65536;2:0;4:131072;5:16384|12517377|7:0:0:22|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0.3, firefox 155.0, firefox 154.0, +3 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
1:65536;2:0;4:6291456;6:262144|15663105|3:1:0:220|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chromium 151.0.7922.34, chromium 147.0.7727.15, chromium 145.0.7632.6, +26 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
TCP SYN (p0f)
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
64240_2-4-8-1-3_1460_8 | 20 |
64240_2-4-8-1-3_1460_10 | 16 |
65535_2-4-8-1-3_1240_6 | 4 |
65535_2-4-8-1-3_1240_8 | 1 |
QUIC transport params
| fingerprint | co-occurrences |
|---|---|
q12_97eeb91f9c98 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chrome 152.0.7977.83, chrome 151.0.7922.137, +64 more.The fingerprint page shows the full measured match list. More on the catalog. | 2 |
q07_e80dd4933807 Match?Exact match in Thumbprint's published controlled catalog captures: safari 26.5.2, urlsession 6.3.3, safari 26.6.2, +2 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
q11_76f709dc036e Match?Exact match in Thumbprint's published controlled catalog captures: chromium 148.0.7778.96, chromium 147.0.7727.15.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
User-Agent
Country
| fingerprint | co-occurrences |
|---|---|
US · United States | 18 |
FR · France | 7 |
NO · Norway | 5 |
SG · Singapore | 5 |
MX · Mexico | 5 |
IT · Italy | 5 |
NL · Netherlands | 2 |
JP · Japan | 2 |
CA · Canada | 1 |
GB · United Kingdom | 1 |
TLS supported groups
| fingerprint | co-occurrences |
|---|---|
0a0a,001d,0017,0018 | 3 |
001d,0017,001e,0019,0018,0100,0101,0102,0103,0104 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.13.0, php-guzzle 8.3.1, curl 7.88.1, +10 more.The fingerprint page shows the full measured match list. More on the catalog. | 2 |
Cross-transport links
TLS ClientHello fingerprints observed from the same client via the beacon's correlation id on the other transport (e.g. this stack over TCP ↔ that stack over QUIC).
| fingerprint | linked observations |
|---|---|
q13d0311h3_55b375c5d22e_653d80c3fe9d | 5 |
t13d1516h2_8daaf6152771_d8a2da3f94cd | 5 |