Network (ASN)

AS211680

first seen 2026-06-11 01:47 · last seen 2026-10-31 15:42 · JSON

Last 7 days (19 observations)

Distinct clients per day (last 30 days, peak 10/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	`NSEC - Sistemas Informaticos, S.A.`
Domain	`nsec.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)

fingerprint	co-occurrences
`t12d330600_5172cef6ed69_021165082e1c`	291
`t12d130600_2d7513195f68_021165082e1c`	30
`t13d1812h1_85036bcba153_d41ae481755e`	20
`t12i330500_5172cef6ed69_021165082e1c`	8
`t13i1909h1_9dc949149365_97f8aa674fd9`	8
`t12i130500_2d7513195f68_021165082e1c`	7
`t13d1910h1_9dc949149365_97f8aa674fd9`	1

HTTP request (JA4H)

fingerprint	co-occurrences
`ge11nr040000_e1d2031bdfea_000000000000_000000000000`	310
`ge11nr040000_88d30a62b7ad_000000000000_000000000000`	27
`po20nn07*000_8db2b212706a_000000000000_000000000000`	9
`ge20nn06*000_b74359a06b81_000000000000_000000000000`	9
`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
`po20nn08*000_b01858152300_000000000000_000000000000`	1
`ge20nn07*000_11cdd62b56ea_000000000000_000000000000`	1

HTTP/2 frames (Akamai)

fingerprint	co-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.	20

TCP SYN (p0f)

fingerprint	co-occurrences
`4:55+9:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0`	159
`4:52+12:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0`	64
`4:51+13:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0`	60
`4:57+7:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0`	29
`4:50+14:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0`	21
`4:49+15:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0`	7
`4:54+10:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0`	6
`6:47+17:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:0`	6
`6:46+18:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:0`	2
`6:55+9:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:0`	2

TCP SYN (JA4T)

fingerprint	co-occurrences
`64240_2-4-8-1-3_1460_7`	309
`64800_2-4-8-1-3_1440_7`	18

User-Agent

fingerprint	co-occurrences
`Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.6312.86 Safari/537.36`	345
`python-httpx/0.28.1`	20

Country

fingerprint	co-occurrences
`NL` · Netherlands	183
`US` · United States	182

TLS supported groups

fingerprint	co-occurrences
`0017,0018,0019`	59
`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.	4
`11ec,001d,0017,0018,0019` Match?Exact match in Thumbprint's published controlled catalog captures: firefox 157.0.1, firefox-esr 153.5.1esr, firefox 158.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog.	2