Network (ASN)

AS214481

first seen 2026-06-12 09:40 · last seen 2026-10-23 22:27 · JSON

Distinct clients per day (last 30 days, peak 25/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 nameWojciech Czapkowicz
Domainchunkserve.com

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)

fingerprintco-occurrences
t13d3013h2_1d37bd780c83_8537cf56674e Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.18.0.The fingerprint page shows the full measured match list. More on the catalog.25
t13d1312h1_f57a46bbacb6_ab7e3b40a6774
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.3
t13d1515h1_8daaf6152771_0a20fe35d3a51

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn030000_bf75ddd0bb29_000000000000_00000000000025
ge20nr14engb_34822288a69d_000000000000_0000000000002
ge11nn040000_88d30a62b7ad_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: wget 1.25.0.The fingerprint page shows the full measured match list. More on the catalog.1
he11nn030000_042112399351_000000000000_0000000000001
ge11nn040000_e1d2031bdfea_000000000000_0000000000001
he11nn030000_fe444ad14866_000000000000_0000000000001
ge11nn14enus_4a2973d235de_000000000000_0000000000001
ge20nn15engb_37ac3c14a8b9_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
3:100;4:65536;2:0|1048510465|0|m,s,a,p Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.13.0, curl 8.18.0, curl 8.21.0, +8 more.The fingerprint page shows the full measured match list. More on the catalog.25
1:65536;2:0;4:6291456;6:262144|8290305|0|m,s,a,p3

TCP SYN (p0f)

fingerprintco-occurrences
4:49+15:0:1460:mss*29,11:mss,sok,ts,nop,ws::09
4:55+9:0:1460:mss*29,11:mss,sok,ts,nop,ws::09
4:49+15:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:03
6:51+13:0:1440:mss*45,8:mss,sok,ts,nop,ws:flow:03
4:48+16:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:02
4:55+9:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:02
4:48+16:0:1460:mss*29,11:mss,sok,ts,nop,ws::02
4:54+10:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:112+16:0:1254:65535,8:mss,nop,ws,nop,nop,sok:df,id+:01
4:53+11:0:1436:mss*45,7:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
42340_2-4-8-1-3_1460_1120
64240_2-4-8-1-3_1460_76
64800_2-4-8-1-3_1440_83
64620_2-4-8-1-3_1436_71
65535_2-1-3-1-1-4_1254_81

User-Agent

fingerprintco-occurrences
curl/8.14.125
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/154.0.0.0 Safari/537.363
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.362
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 15.7; rv:149.0) Gecko/20100101 Firefox/149.01
Mozilla/5.0 (Macintosh; Intel Mac OS X 15_7_5) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.0 Safari/605.1.151

Country

fingerprintco-occurrences
NL · Netherlands32
PL · Poland1

TLS supported groups

fingerprintco-occurrences
11ec,001d,0017,001e,0018,0019,0100,0101 Match?Exact match in Thumbprint's published controlled catalog captures: python-httpx 0.28.1, python-requests 2.34.2, curl 8.23.0, +4 more.The fingerprint page shows the full measured match list. More on the catalog.25
0a0a,11ec,001d,0017,0018 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 156.0.8078.48, edge 155.0.4283.62, chrome 156.0.8078.47, +11 more.The fingerprint page shows the full measured match list. More on the catalog.1