Network (ASN)

AS211680

first seen 2026-06-11 01:47 · last seen 2026-09-15 04:39 · JSON

Last 7 days (42 observations)

Distinct clients per day (last 30 days, peak 11/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 nameNSEC - Sistemas Informaticos, S.A.
Domainnsec.pt

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
t12d330600_5172cef6ed69_021165082e1c200
t12d130600_2d7513195f68_021165082e1c20
t13d1812h1_85036bcba153_d41ae481755e12
t12i330500_5172cef6ed69_021165082e1c8
t12i130500_2d7513195f68_021165082e1c7
t13i1909h1_9dc949149365_97f8aa674fd95

HTTP request (JA4H)

fingerprintco-occurrences
ge11nr040000_e1d2031bdfea_000000000000_000000000000205
ge11nr040000_88d30a62b7ad_000000000000_00000000000027
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.8
po20nn07*000_8db2b212706a_000000000000_0000000000005
ge20nn06*000_b74359a06b81_000000000000_0000000000005
po20nn08*000_b01858152300_000000000000_0000000000001
ge20nn07*000_11cdd62b56ea_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:4096;2:0;4:65535;5:16384;3:100;6:65536|16777216|0|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: python-httpx 0.28.1.The fingerprint page shows the full measured match list. More on the catalog.12

TCP SYN (p0f)

fingerprintco-occurrences
4:55+9:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:097
4:51+13:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:058
4:52+12:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:052
4:50+14:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:021
4:49+15:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:07
4:54+10:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:06
6:47+17:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:04
6:48+16:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:02
6:52+12:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:02
6:46+18:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:02

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_7204
64800_2-4-8-1-3_1440_710

User-Agent

fingerprintco-occurrences
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.6312.86 Safari/537.36240
python-httpx/0.28.112

Country

fingerprintco-occurrences
US · United States133
NL · Netherlands119