www.kalmanfilter.net Open in urlscan Pro
2607:f1c0:100f:f000::253 Public Scan

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Submitted URL:
http://www.kalmanfilter.net/
Effective URL:
https://www.kalmanfilter.net/default.aspx
Submission: On June 06 via api (June 6th 2024, 7:00:10 am UTC) from US — Scanned from DE

Summary HTTP 39 Redirects Links 1 Behaviour Indicators

Summary

This website contacted 10 IPs in 3 countries across 9 domains to perform 39 HTTP transactions. The main IP is 2607:f1c0:100f:f000::253, located in United States and belongs to IONOS-AS This is the joint network for IONOS, Fasthosts, Arsys, 1&1 Mail and Media and 1&1 Telecom. Formerly known as 1&1 Internet SE., DE. The main domain is www.kalmanfilter.net.
TLS certificate: Issued by Encryption Everywhere DV TLS CA - G2 on March 28th 2024. Valid for: a year.

This is the only time www.kalmanfilter.net was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
1 12	2607:f1c0:100... 2607:f1c0:100f:f000::253	8560 (IONOS-AS ...) (IONOS-AS This is the joint network for IONOS)
2	2a00:1450:400... 2a00:1450:4001:809::2008	15169 (GOOGLE) (GOOGLE)
7	2a04:4e42:200... 2a04:4e42:200::485	54113 (FASTLY) (FASTLY)
2	2a00:1450:400... 2a00:1450:4001:803::200a	15169 (GOOGLE) (GOOGLE)
9	2606:4700::68... 2606:4700::6811:190e	13335 (CLOUDFLAR...) (CLOUDFLARENET)
1	2606:4700:310... 2606:4700:310c::ac42:2f70	13335 (CLOUDFLAR...) (CLOUDFLARENET)
2	2a00:1450:400... 2a00:1450:4001:803::200e	15169 (GOOGLE) (GOOGLE)
3	2a00:1450:400... 2a00:1450:4001:80f::2003	15169 (GOOGLE) (GOOGLE)
1	2a00:1450:400... 2a00:1450:400c:c00::9d	15169 (GOOGLE) (GOOGLE)
1	2001:4860:480... 2001:4860:4802:34::36	15169 (GOOGLE) (GOOGLE)
39	10

12 2607:f1c0:100f:f000::253 (United States) 1 redirects

ASN8560 (IONOS-AS This is the joint network for IONOS, Fasthosts, Arsys, 1&1 Mail and Media and 1&1 Telecom. Formerly known as 1&1 Internet SE., DE)

www.kalmanfilter.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2a00:1450:4001:809::2008 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.googletagmanager.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

7 2a04:4e42:200::485 (United States)

ASN54113 (FASTLY, US)

cdn.jsdelivr.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2a00:1450:4001:803::200a (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

fonts.googleapis.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

9 2606:4700::6811:190e (United States)

ASN13335 (CLOUDFLARENET, US)

cdnjs.cloudflare.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2606:4700:310c::ac42:2f70 (United States)

ASN13335 (CLOUDFLARENET, US)

website-widgets.pages.dev	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2a00:1450:4001:803::200e (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.google-analytics.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

3 2a00:1450:4001:80f::2003 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

fonts.gstatic.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:400c:c00::9d (Brussels, Belgium)

ASN15169 (GOOGLE, US)

stats.g.doubleclick.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2001:4860:4802:34::36 (United States)

ASN15169 (GOOGLE, US)

region1.google-analytics.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
12	kalmanfilter.net 1 redirects www.kalmanfilter.net	715 KB
9	cloudflare.com cdnjs.cloudflare.com — Cisco Umbrella Rank: 260	171 KB
7	jsdelivr.net cdn.jsdelivr.net — Cisco Umbrella Rank: 354	166 KB
3	gstatic.com fonts.gstatic.com	111 KB
3	google-analytics.com www.google-analytics.com — Cisco Umbrella Rank: 65 region1.google-analytics.com — Cisco Umbrella Rank: 2406	21 KB
2	googleapis.com fonts.googleapis.com — Cisco Umbrella Rank: 70	3 KB
2	googletagmanager.com www.googletagmanager.com — Cisco Umbrella Rank: 78	171 KB
1	doubleclick.net stats.g.doubleclick.net — Cisco Umbrella Rank: 130	350 B
1	pages.dev website-widgets.pages.dev — Cisco Umbrella Rank: 190766	22 KB
39	9

	Domain	Requested by
12	www.kalmanfilter.net	1 redirects www.kalmanfilter.net
9	cdnjs.cloudflare.com	www.kalmanfilter.net cdnjs.cloudflare.com
7	cdn.jsdelivr.net	www.kalmanfilter.net cdn.jsdelivr.net
3	fonts.gstatic.com	fonts.googleapis.com
2	www.google-analytics.com	www.googletagmanager.com www.google-analytics.com
2	fonts.googleapis.com	www.kalmanfilter.net
2	www.googletagmanager.com	www.kalmanfilter.net www.googletagmanager.com
1	region1.google-analytics.com	www.googletagmanager.com
1	stats.g.doubleclick.net	www.google-analytics.com
1	website-widgets.pages.dev	www.kalmanfilter.net
39	10

This site contains links to these domains. Also see Links.

Domain
accessibility-widget.pages.dev

Subject Issuer	Validity	Valid
www.kalmanfilter.net Encryption Everywhere DV TLS CA - G2	`2024-03-28` - `2025-04-10`	a year	crt.sh
*.google-analytics.com WR2	`2024-05-21` - `2024-08-13`	3 months	crt.sh
jsdelivr.net GlobalSign Atlas R3 DV TLS CA 2023 Q3	`2023-09-27` - `2024-10-28`	a year	crt.sh
upload.video.google.com WR2	`2024-05-21` - `2024-08-13`	3 months	crt.sh
cdnjs.cloudflare.com E1	`2024-06-02` - `2024-08-31`	3 months	crt.sh
website-widgets.pages.dev GTS CA 1P5	`2024-04-13` - `2024-07-12`	3 months	crt.sh
*.gstatic.com WR2	`2024-05-21` - `2024-08-13`	3 months	crt.sh
*.g.doubleclick.net GTS CA 1C3	`2024-05-13` - `2024-08-05`	3 months	crt.sh

This page contains 1 frames:

Primary Page: https://www.kalmanfilter.net/default.aspx
Frame ID: 77DAF1DFC21436B30A773B856FB49DC9
Requests: 39 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

Kalman Filter Tutorial

Page URL History Show full URLs

http://www.kalmanfilter.net/ HTTP 307
https://www.kalmanfilter.net/ HTTP 302
https://www.kalmanfilter.net/default.aspx Page URL

Detected technologies

MathJax (JavaScript Graphics) Expand

Overall confidence: 100%
Detected patterns

([\d.]+)?/mathjax\.js

Bootstrap (Web Frameworks) Expand

Overall confidence: 100%
Detected patterns

<link[^>]* href=[^>]*?bootstrap(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)[^>]*?(?:\.min)?\.css
bootstrap(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)[^>]*?(?:\.min)?\.js

Microsoft ASP.NET (Web Frameworks) Expand

Overall confidence: 100%
Detected patterns

\.aspx?(?:$|\?)

Font Awesome (Font Scripts) Expand

Overall confidence: 100%
Detected patterns

<link[^>]* href=[^>]+(?:([\d.]+)/)?(?:css/)?font-awesome(?:\.min)?\.css
<link[^>]* href=[^>]*?(?:F|f)o(?:n|r)t-?(?:A|a)wesome(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)
(?:F|f)o(?:n|r)t-?(?:A|a)wesome(?:.*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)

Google Analytics (Analytics) Expand

Overall confidence: 100%
Detected patterns

google-analytics\.com/(?:ga|urchin|analytics)\.js

Google Font API (Font Scripts) Expand

Overall confidence: 100%
Detected patterns

<link[^>]* href=[^>]+fonts\.(?:googleapis|google)\.com

Google Tag Manager (Tag Managers) Expand

Overall confidence: 100%
Detected patterns

googletagmanager\.com/gtag/js

jQuery (JavaScript Libraries) Expand

Overall confidence: 100%
Detected patterns

jquery.*\.js(?:\?ver(?:sion)?=([\d.]+))?

jsDelivr (CDN) Expand

Overall confidence: 100%
Detected patterns

<link [^>]*?href="?[a-zA-Z]*?:?//cdn\.jsdelivr\.net/
//cdn\.jsdelivr\.net/

Page Statistics

39
Requests

100 %
HTTPS

100 %
IPv6

9
Domains

10
Subdomains

10
IPs

3
Countries

1380 kB
Transfer

2493 kB
Size

6
Cookies

1 Outgoing links

These are links going to different origins than the main page.

URL: https://accessibility-widget.pages.dev/

Search URL Search Domain Scan URL

Page URL History

This captures the URL locations of the websites, including HTTP redirects and client-side redirects via JavaScript or Meta fields.

http://www.kalmanfilter.net/ HTTP 307
https://www.kalmanfilter.net/ HTTP 302
https://www.kalmanfilter.net/default.aspx Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

39 HTTP transactions
0 data transactions

Method
Protocol Status Resource
Path Size
x-fer Time
Latency Type
MIME-Type IP
Location

GET
H2

200

Primary Request default.aspx Show response
www.kalmanfilter.net/
Redirect Chain

http://www.kalmanfilter.net/
https://www.kalmanfilter.net/
https://www.kalmanfilter.net/default.aspx

31 KB
9 KB

200ms
199ms

Document
text/html

2607:f1c0:100f:f000::253
IONOS-AS This is ...

General

Check archive.org

Show headers Download Go to

Full URL: https://www.kalmanfilter.net/default.aspx
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 2607:f1c0:100f:f000::253 , United States, ASN8560 (IONOS-AS This is the joint network for IONOS, Fasthosts, Arsys, 1&1 Mail and Media and 1&1 Telecom. Formerly known as 1&1 Internet SE., DE),
Reverse DNS
Software: Microsoft-IIS/10.0 / ASP.NET
Resource Hash: ce4e7b7890decc54b0fd3a89f4733265879815f9e2bfb3477e8d3216f16ca4a1

Request headers

Accept-Language: de-DE,de;q=0.9;q=0.9
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36

Response headers

cache-control: private
content-encoding: gzip
content-length: 9065
content-type: text/html; charset=utf-8
date: Thu, 06 Jun 2024 07:00:05 GMT
server: Microsoft-IIS/10.0
vary: Accept-Encoding
x-aspnet-version: 4.0.30319
x-powered-by: ASP.NET

Redirect headers

cache-control: private
content-length: 162
content-type: text/html
date: Thu, 06 Jun 2024 07:00:04 GMT
location: https://www.kalmanfilter.net/default.aspx
server: Microsoft-IIS/10.0
x-powered-by: ASP.NET

GET
H2 200 js Show response
www.googletagmanager.com/gtag/ 196 KB
71 KB 63ms
40ms Script
application/javascript 2a00:1450:4001:809::2008
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://www.googletagmanager.com/gtag/js?id=UA-1608873-2

Requested by

Host: www.kalmanfilter.net
URL: https://www.kalmanfilter.net/default.aspx

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:809::2008 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Google Tag Manager /

Resource Hash

a65f2aada0d1fdff21d637f515aff302cdf9ec027bbad99b73255c56a817e34d

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains
X-Xss-Protection	0

Request headers

sec-ch-ua: "Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer: https://www.kalmanfilter.net/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Thu, 06 Jun 2024 07:00:05 GMT
content-encoding: br
strict-transport-security: max-age=31536000; includeSubDomains
server: Google Tag Manager
vary: Accept-Encoding
content-type: application/javascript; charset=UTF-8
access-control-allow-origin: *
cache-control: private, max-age=900
access-control-allow-credentials: true
cross-origin-resource-policy: cross-origin
access-control-allow-headers: Cache-Control
content-length: 72661
x-xss-protection: 0
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
expires: Thu, 06 Jun 2024 07:00:05 GMT

GET
H2 200 bootstrap.min.css
cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/css/ 158 KB
26 KB 37ms
7ms Stylesheet
text/css 2a04:4e42:200::485
FASTLY

General

Check archive.org

Show headers Download Go to

Full URL

https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/css/bootstrap.min.css

Requested by

Host: www.kalmanfilter.net
URL: https://www.kalmanfilter.net/default.aspx

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a04:4e42:200::485 , United States, ASN54113 (FASTLY, US),

Reverse DNS

Software

Resource Hash

4ffcc598ee6cff4692c1cea272cd8a2f195f6dec32473e94370d6cdcfa5fe601

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains; preload
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer: https://www.kalmanfilter.net/
Origin: https://www.kalmanfilter.net
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

strict-transport-security: max-age=31536000; includeSubDomains; preload
date: Thu, 06 Jun 2024 07:00:05 GMT
x-content-type-options: nosniff
content-encoding: br
age: 1828037
x-jsd-version: 4.6.0
x-cache: HIT
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400
content-length: 26291
x-served-by: cache-fra-etou8220101-FRA
x-jsd-version-type: version
etag: W/"27681-LKxK/BIJg5IUESlr1Oj9ipS6I34"
vary: Accept-Encoding
content-type: text/css; charset=utf-8
access-control-allow-origin: *
access-control-expose-headers: *
cache-control: public, max-age=31536000, s-maxage=31536000, immutable
accept-ranges: bytes
timing-allow-origin: *

GET
H2 200 css
fonts.googleapis.com/ 11 KB
1 KB 39ms
17ms Stylesheet
text/css 2a00:1450:4001:803::200a
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://fonts.googleapis.com/css?family=Saira+Extra+Condensed:100,200,300,400,500,600,700,800,900

Requested by

Host: www.kalmanfilter.net
URL: https://www.kalmanfilter.net/default.aspx

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:803::200a Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

ESF /

Resource Hash

35ed570f1401e54e8bc79fc024ba8058530d283dc4a8aca79e328624f99bd538

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000
X-Content-Type-Options	nosniff
X-Frame-Options	SAMEORIGIN
X-Xss-Protection	0

Request headers

sec-ch-ua: "Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer: https://www.kalmanfilter.net/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

strict-transport-security: max-age=31536000
date: Thu, 06 Jun 2024 07:00:05 GMT
content-encoding: gzip
x-content-type-options: nosniff
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
x-xss-protection: 0
last-modified: Thu, 06 Jun 2024 07:00:05 GMT
server: ESF
cross-origin-opener-policy: same-origin-allow-popups
x-frame-options: SAMEORIGIN
content-type: text/css; charset=utf-8
access-control-allow-origin: *
cache-control: private, max-age=86400, stale-while-revalidate=604800
timing-allow-origin: *
link: <https://fonts.gstatic.com>; rel=preconnect; crossorigin
expires: Thu, 06 Jun 2024 07:00:05 GMT

GET
H2 200 css
fonts.googleapis.com/ 55 KB
2 KB 46ms
24ms Stylesheet
text/css 2a00:1450:4001:803::200a
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://fonts.googleapis.com/css?family=Open+Sans:300,300i,400,400i,600,600i,700,700i,800,800i

Requested by

Host: www.kalmanfilter.net
URL: https://www.kalmanfilter.net/default.aspx

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:803::200a Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

ESF /

Resource Hash

b17609553b24140fc01409b78fa834fe878de6410fe9e8996b0a5f6a984ddd6d

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000
X-Content-Type-Options	nosniff
X-Frame-Options	SAMEORIGIN
X-Xss-Protection	0

Request headers

sec-ch-ua: "Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer: https://www.kalmanfilter.net/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

strict-transport-security: max-age=31536000
date: Thu, 06 Jun 2024 07:00:05 GMT
content-encoding: gzip
x-content-type-options: nosniff
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
x-xss-protection: 0
last-modified: Thu, 06 Jun 2024 05:28:38 GMT
server: ESF
cross-origin-opener-policy: same-origin-allow-popups
x-frame-options: SAMEORIGIN
content-type: text/css; charset=utf-8
access-control-allow-origin: *
cache-control: private, max-age=86400, stale-while-revalidate=604800
timing-allow-origin: *
link: <https://fonts.gstatic.com>; rel=preconnect; crossorigin
expires: Thu, 06 Jun 2024 07:00:05 GMT

GET
H2 200 font-awesome.min.css
cdn.jsdelivr.net/npm/font-awesome@4.7.0/css/ 30 KB
7 KB 37ms
7ms Stylesheet
text/css 2a04:4e42:200::485
FASTLY

General

Check archive.org

Show headers Download Go to

Full URL

https://cdn.jsdelivr.net/npm/font-awesome@4.7.0/css/font-awesome.min.css

Requested by

Host: www.kalmanfilter.net
URL: https://www.kalmanfilter.net/default.aspx

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a04:4e42:200::485 , United States, ASN54113 (FASTLY, US),

Reverse DNS

Software

Resource Hash

799aeb25cc0373fdee0e1b1db7ad6c2f6a0e058dfadaa3379689f583213190bd

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains; preload
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer: https://www.kalmanfilter.net/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

strict-transport-security: max-age=31536000; includeSubDomains; preload
date: Thu, 06 Jun 2024 07:00:05 GMT
x-content-type-options: nosniff
content-encoding: br
age: 1815734
x-jsd-version: 4.7.0
x-cache: HIT
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400
content-length: 7114
x-served-by: cache-fra-etou8220024-FRA
x-jsd-version-type: version
etag: W/"7918-USx9eQM+MCipvmG1QM8aaHDIlvg"
vary: Accept-Encoding
content-type: text/css; charset=utf-8
access-control-allow-origin: *
access-control-expose-headers: *
cache-control: public, max-age=31536000, s-maxage=31536000, immutable
accept-ranges: bytes
timing-allow-origin: *

GET
H2 200 flag-icon.min.css
cdnjs.cloudflare.com/ajax/libs/flag-icon-css/3.1.0/css/ 33 KB
2 KB 63ms
25ms Stylesheet
text/css 2606:4700::6811:190e
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://cdnjs.cloudflare.com/ajax/libs/flag-icon-css/3.1.0/css/flag-icon.min.css

Requested by

Host: www.kalmanfilter.net
URL: https://www.kalmanfilter.net/default.aspx

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700::6811:190e , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

0fe6690c98e11b16b97dfc9092e4efc228b8027b4518165ae235214a97658633

Security Headers

Name	Value
Strict-Transport-Security	max-age=15780000
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer: https://www.kalmanfilter.net/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Thu, 06 Jun 2024 07:00:05 GMT
content-encoding: br
x-content-type-options: nosniff
cf-cache-status: HIT
nel: {"success_fraction":0.01,"report_to":"cf-nel","max_age":604800}
strict-transport-security: max-age=15780000
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https://cdn.jsdelivr.net/npm/jquery@3.6.0/dist/jquery.min.js

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URL: https://www.kalmanfilter.net/default.aspx
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
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Reverse DNS
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Request headers

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Referer: https://www.kalmanfilter.net/default.aspx
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sec-ch-ua-mobile: ?0
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sec-ch-ua-platform: "Win32"

Response headers

date: Thu, 06 Jun 2024 07:00:05 GMT
content-encoding: gzip
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server: Microsoft-IIS/10.0
etag: "b2a78c676763da1:0"
x-powered-by: ASP.NET
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GET
H2 200 TeX-AMS_HTML-full.js Show response
cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.2/config/ 305 KB
75 KB 25ms
24ms Script
application/javascript 2606:4700::6811:190e
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.2/config/TeX-AMS_HTML-full.js?V=2.7.2

Requested by

Host: cdnjs.cloudflare.com
URL: https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.2/MathJax.js?config=TeX-AMS_HTML-full

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

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Reverse DNS

Software

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Resource Hash

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Security Headers

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Request headers

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Referer: https://www.kalmanfilter.net/
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sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Thu, 06 Jun 2024 07:00:05 GMT
content-encoding: br
x-content-type-options: nosniff
cf-cache-status: HIT
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cf-ray: 88f685fd8e180b52-AMS
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GET
H2 200 js Show response
www.googletagmanager.com/gtag/ 294 KB
100 KB 41ms
41ms Script
application/javascript 2a00:1450:4001:809::2008
GOOGLE

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Full URL

https://www.googletagmanager.com/gtag/js?id=G-D24V8KSHP1&l=dataLayer&cx=c

Requested by

Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtag/js?id=UA-1608873-2

Protocol

Security

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Server

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Reverse DNS

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Resource Hash

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Security Headers

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Request headers

sec-ch-ua: "Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer: https://www.kalmanfilter.net/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Thu, 06 Jun 2024 07:00:05 GMT
content-encoding: br
strict-transport-security: max-age=31536000; includeSubDomains
server: Google Tag Manager
vary: Accept-Encoding
content-type: application/javascript; charset=UTF-8
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x-xss-protection: 0
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
expires: Thu, 06 Jun 2024 07:00:05 GMT

GET
H2 200 analytics.js Show response
www.google-analytics.com/ 52 KB
21 KB 31ms
7ms Script
text/javascript 2a00:1450:4001:803::200e
GOOGLE

General

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Full URL

https://www.google-analytics.com/analytics.js

Requested by

Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtag/js?id=UA-1608873-2

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

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Reverse DNS

Software

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Resource Hash

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Security Headers

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Request headers

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Referer: https://www.kalmanfilter.net/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

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content-encoding: gzip
x-content-type-options: nosniff
date: Thu, 06 Jun 2024 06:29:08 GMT
last-modified: Tue, 12 Dec 2023 18:09:08 GMT
server: Golfe2
age: 1857
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alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 20994
expires: Thu, 06 Jun 2024 08:29:08 GMT

GET
H3 200 us.svg
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1 KB 27ms
26ms Image
image/svg+xml 2606:4700::6811:190e
CLOUDFLARENET

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Full URL

https://cdnjs.cloudflare.com/ajax/libs/flag-icon-css/3.1.0/flags/4x3/us.svg

Requested by

Host: cdnjs.cloudflare.com
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Protocol

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Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
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sec-ch-ua-platform: "Win32"

Response headers

date: Thu, 06 Jun 2024 07:00:05 GMT
content-encoding: br
x-content-type-options: nosniff
cf-cache-status: HIT
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strict-transport-security: max-age=15780000
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GET
H2 200 fontawesome-webfont.woff2
cdn.jsdelivr.net/npm/font-awesome@4.7.0/fonts/ 75 KB
75 KB 7ms
7ms Font
font/woff2 2a04:4e42:200::485
FASTLY

General

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Full URL

https://cdn.jsdelivr.net/npm/font-awesome@4.7.0/fonts/fontawesome-webfont.woff2?v=4.7.0

Requested by

Host: cdn.jsdelivr.net
URL: https://cdn.jsdelivr.net/npm/font-awesome@4.7.0/css/font-awesome.min.css

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a04:4e42:200::485 , United States, ASN54113 (FASTLY, US),

Reverse DNS

Software

Resource Hash

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Security Headers

Name	Value
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X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer: https://cdn.jsdelivr.net/npm/font-awesome@4.7.0/css/font-awesome.min.css
Origin: https://www.kalmanfilter.net
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

strict-transport-security: max-age=31536000; includeSubDomains; preload
date: Thu, 06 Jun 2024 07:00:05 GMT
x-content-type-options: nosniff
age: 1908424
x-jsd-version: 4.7.0
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POST
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211 B 14ms
14ms XHR
text/plain 2a00:1450:4001:803::200e
GOOGLE

General

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Full URL

https://www.google-analytics.com/j/collect?v=1&_v=j101&a=453508436&t=pageview&_s=1&dl=https%3A%2F%2Fwww.kalmanfilter.net%2Fdefault.aspx&ul=de-de&de=UTF-8&dt=Kalman%20Filter%20Tutorial&sd=24-bit&sr=1600x1200&vp=1600x1200&je=0&_u=YEBAAUABAAAAACAAI~&jid=2085326363&gjid=10226640&cid=1386134924.1717657205&tid=UA-1608873-2&_gid=1671452245.1717657205&_r=1&gtm=457e4630za200&gcd=13l3l3l2l1&dma_cps=sypham&dma=1&tag_exp=0&jsscut=1&npa=1&z=2133030206

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URL: https://www.google-analytics.com/analytics.js

Protocol

Security

TLS 1.3, , AES_128_GCM

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Reverse DNS

Software

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Resource Hash

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Security Headers

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Request headers

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sec-ch-ua-platform: "Win32"
Referer: https://www.kalmanfilter.net/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
Content-Type: text/plain

Response headers

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date: Thu, 06 Jun 2024 07:00:05 GMT
x-content-type-options: nosniff
last-modified: Sun, 17 May 1998 03:00:00 GMT
server: Golfe2
content-type: text/plain
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GET
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fonts.gstatic.com/s/opensans/v40/ 47 KB
47 KB 35ms
9ms Font
font/woff2 2a00:1450:4001:80f::2003
GOOGLE

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Full URL

https://fonts.gstatic.com/s/opensans/v40/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-muw.woff2

Requested by

Host: fonts.googleapis.com
URL: https://fonts.googleapis.com/css?family=Open+Sans:300,300i,400,400i,600,600i,700,700i,800,800i

Protocol

Security

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Reverse DNS

Software

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Resource Hash

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Security Headers

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Request headers

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Origin: https://www.kalmanfilter.net
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Tue, 04 Jun 2024 14:39:21 GMT
x-content-type-options: nosniff
age: 145244
content-security-policy-report-only: require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/apps-themes
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alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
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expires: Wed, 04 Jun 2025 14:39:21 GMT

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font/woff2 2a00:1450:4001:80f::2003
GOOGLE

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Full URL

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Security

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Reverse DNS

Software

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Resource Hash

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Security Headers

Name	Value
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Request headers

sec-ch-ua: "Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer: https://fonts.googleapis.com/
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Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Wed, 05 Jun 2024 21:20:51 GMT
x-content-type-options: nosniff
age: 34754
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cache-control: public, max-age=31536000
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expires: Thu, 05 Jun 2025 21:20:51 GMT

GET
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www.kalmanfilter.net/img/book/ 496 KB
496 KB 316ms
315ms Image
image/png 2607:f1c0:100f:f000::253
IONOS-AS This is ...

General

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Show headers Download Go to Show image

Full URL: https://www.kalmanfilter.net/img/book/3Dbook.png
Requested by: Host: www.kalmanfilter.net
URL: https://www.kalmanfilter.net/default.aspx
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Request headers

sec-ch-ua: "Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
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Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Thu, 06 Jun 2024 07:00:05 GMT
last-modified: Sat, 23 Sep 2023 21:23:19 GMT
server: Microsoft-IIS/10.0
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content-type: image/png
accept-ranges: bytes
content-length: 507562

GET
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21 KB 516ms
516ms Image
image/png 2607:f1c0:100f:f000::253
IONOS-AS This is ...

General

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Show headers Download Go to Show image

Full URL: https://www.kalmanfilter.net/img/Overview/Kalman.png
Requested by: Host: www.kalmanfilter.net
URL: https://www.kalmanfilter.net/default.aspx
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 2607:f1c0:100f:f000::253 , United States, ASN8560 (IONOS-AS This is the joint network for IONOS, Fasthosts, Arsys, 1&1 Mail and Media and 1&1 Telecom. Formerly known as 1&1 Internet SE., DE),
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Request headers

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Referer: https://www.kalmanfilter.net/default.aspx
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Thu, 06 Jun 2024 07:00:05 GMT
last-modified: Sat, 17 Apr 2021 16:00:31 GMT
server: Microsoft-IIS/10.0
etag: "3bd04acba233d71:0"
x-powered-by: ASP.NET
content-type: image/png
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POST
H2 200 collect Show response
stats.g.doubleclick.net/j/ 1 B
350 B 59ms
20ms XHR
text/plain 2a00:1450:400c:c00::9d
GOOGLE

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Full URL

https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j101&tid=UA-1608873-2&cid=1386134924.1717657205&jid=2085326363&gjid=10226640&_gid=1671452245.1717657205&npa=1&_u=YEBAAUAAAAAAACAAI~&z=1524053835

Requested by

Host: www.google-analytics.com
URL: https://www.google-analytics.com/analytics.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:400c:c00::9d Brussels, Belgium, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Golfe2 /

Resource Hash

6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains; preload
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
sec-ch-ua-platform: "Win32"
Referer: https://www.kalmanfilter.net/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
Content-Type: text/plain

Response headers

pragma: no-cache
strict-transport-security: max-age=31536000; includeSubDomains; preload
date: Thu, 06 Jun 2024 07:00:05 GMT
x-content-type-options: nosniff
last-modified: Sun, 17 May 1998 03:00:00 GMT
server: Golfe2
content-type: text/plain
access-control-allow-origin: https://www.kalmanfilter.net
cache-control: no-cache, no-store, must-revalidate
access-control-allow-credentials: true
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 1
expires: Fri, 01 Jan 1990 00:00:00 GMT

POST
H2 204 collect
region1.google-analytics.com/g/ 0
258 B 62ms
16ms Ping
text/plain 2001:4860:4802:34::36
GOOGLE

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Full URL: https://region1.google-analytics.com/g/collect?v=2&tid=G-D24V8KSHP1&gtm=45je4630v890084445za200&_p=1717657205303&gcd=13l3l3l2l1&npa=1&dma_cps=sypham&dma=1&tag_exp=0&cid=1386134924.1717657205&ul=de-de&sr=1600x1200&uaa=x86&uab=64&uafvl=Google%2520Chrome%3B125.0.6422.141%7CChromium%3B125.0.6422.141%7CNot.A%252FBrand%3B24.0.0.0&uamb=0&uam=&uap=Win32&uapv=10.0.0&uaw=0&are=1&frm=0&pscdl=noapi&_eu=AAAI&_s=1&sid=1717657205&sct=1&seg=0&dl=https%3A%2F%2Fwww.kalmanfilter.net%2Fdefault.aspx&dt=Kalman%20Filter%20Tutorial&en=page_view&_fv=1&_ss=1&tfd=948
Requested by: Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtag/js?id=G-D24V8KSHP1&l=dataLayer&cx=c
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2001:4860:4802:34::36 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
Software: Golfe2 /
Resource Hash: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

sec-ch-ua: "Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer: https://www.kalmanfilter.net/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

pragma: no-cache
date: Thu, 06 Jun 2024 07:00:05 GMT
server: Golfe2
content-type: text/plain
access-control-allow-origin: https://www.kalmanfilter.net
cache-control: no-cache, no-store, must-revalidate
access-control-allow-credentials: true
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 0
expires: Fri, 01 Jan 1990 00:00:00 GMT

GET
H2 200 glowCookies.min.css
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1 KB 7ms
7ms Stylesheet
text/css 2a04:4e42:200::485
FASTLY

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Full URL

https://cdn.jsdelivr.net/gh/manucaralmo/GlowCookies@3.1.3/src/glowCookies.min.css

Requested by

Host: www.kalmanfilter.net
URL: https://www.kalmanfilter.net/glowCookies/glowCookies.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a04:4e42:200::485 , United States, ASN54113 (FASTLY, US),

Reverse DNS

Software

Resource Hash

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Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains; preload
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer: https://www.kalmanfilter.net/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

strict-transport-security: max-age=31536000; includeSubDomains; preload
date: Thu, 06 Jun 2024 07:00:05 GMT
x-content-type-options: nosniff
content-encoding: br
age: 773214
x-jsd-version: 3.1.3
x-cache: HIT
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400
content-length: 992
x-served-by: cache-fra-etou8220024-FRA
x-jsd-version-type: version
etag: W/"1171-sNuW53iZRk91kJe0zkMM0ckNvtU"
vary: Accept-Encoding
content-type: text/css; charset=utf-8
access-control-allow-origin: *
access-control-expose-headers: *
cache-control: public, max-age=31536000, s-maxage=31536000, immutable
accept-ranges: bytes
timing-allow-origin: *

GET
H2 200 memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTVOmu1aB.woff2
fonts.gstatic.com/s/opensans/v40/ 46 KB
46 KB 7ms
7ms Font
font/woff2 2a00:1450:4001:80f::2003
GOOGLE

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Full URL

https://fonts.gstatic.com/s/opensans/v40/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTVOmu1aB.woff2

Requested by

Host: fonts.googleapis.com
URL: https://fonts.googleapis.com/css?family=Open+Sans:300,300i,400,400i,600,600i,700,700i,800,800i

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:80f::2003 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

sffe /

Resource Hash

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Security Headers

Name	Value
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X-Xss-Protection	0

Request headers

sec-ch-ua: "Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer: https://fonts.googleapis.com/
Origin: https://www.kalmanfilter.net
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Tue, 04 Jun 2024 14:34:02 GMT
x-content-type-options: nosniff
age: 145563
content-security-policy-report-only: require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/apps-themes
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 47136
x-xss-protection: 0
last-modified: Thu, 14 Dec 2023 02:04:09 GMT
server: sffe
cross-origin-opener-policy: same-origin; report-to="apps-themes"
report-to: {"group":"apps-themes","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/apps-themes"}]}
content-type: font/woff2
access-control-allow-origin: *
cache-control: public, max-age=31536000
accept-ranges: bytes
timing-allow-origin: *
expires: Wed, 04 Jun 2025 14:34:02 GMT

GET
H3 200 fontdata.js Show response
cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.2/jax/output/HTML-CSS/fonts/TeX/ 43 KB
11 KB 23ms
23ms Script
application/javascript 2606:4700::6811:190e
CLOUDFLARENET

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Full URL

https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.2/jax/output/HTML-CSS/fonts/TeX/fontdata.js?V=2.7.2

Requested by

Host: cdnjs.cloudflare.com
URL: https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.2/MathJax.js?config=TeX-AMS_HTML-full

Protocol

Security

QUIC, , AES_128_GCM

Server

2606:4700::6811:190e , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

9257119566e818b9b7e30a6d8128b08b0eed21f72aa953466fae3c10224eb350

Security Headers

Name	Value
Strict-Transport-Security	max-age=15780000
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer: https://www.kalmanfilter.net/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Thu, 06 Jun 2024 07:00:05 GMT
content-encoding: br
x-content-type-options: nosniff
cf-cache-status: HIT
nel: {"success_fraction":0.01,"report_to":"cf-nel","max_age":604800}
strict-transport-security: max-age=15780000
age: 1785918
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=86400
content-length: 10474
last-modified: Mon, 04 May 2020 16:13:12 GMT
server: cloudflare
cf-cdnjs-via: cfworker/kv
etag: "5eb03f18-ac7e"
vary: Accept-Encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=mo8fB3JeHXC%2FyrXWM5SZQaNdtNW3TOSsVdj8XWRDkPNbmGJB8HVeOrdVRXJJMaYLV10wSb5nRrQ1sF8O5huK8FeSxVRrcAOmoISUfl0nTMjhf1a4jXmKvBU4Q%2BzhpQLg9VRBaHXT7bXYCQXGu6Smz4NF"}],"group":"cf-nel","max_age":604800}
content-type: application/javascript; charset=utf-8
access-control-allow-origin: *
cache-control: public, max-age=30672000
accept-ranges: bytes
timing-allow-origin: *
cf-ray: 88f686006d275c48-AMS
expires: Tue, 27 May 2025 07:00:05 GMT

GET
H2 200 favicon.ico
www.kalmanfilter.net/img/favicon/ 125 KB
125 KB 417ms
416ms Other
image/x-icon 2607:f1c0:100f:f000::253
IONOS-AS This is ...

General

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Full URL: https://www.kalmanfilter.net/img/favicon/favicon.ico
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 2607:f1c0:100f:f000::253 , United States, ASN8560 (IONOS-AS This is the joint network for IONOS, Fasthosts, Arsys, 1&1 Mail and Media and 1&1 Telecom. Formerly known as 1&1 Internet SE., DE),
Reverse DNS
Software: Microsoft-IIS/10.0 / ASP.NET
Resource Hash: 35d215211cca4cfb4f417157d996836dcb93a87365ba779aa4773cd8c309cd63

Request headers

sec-ch-ua: "Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer: https://www.kalmanfilter.net/default.aspx
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Thu, 06 Jun 2024 07:00:05 GMT
last-modified: Mon, 11 May 2020 20:54:25 GMT
server: Microsoft-IIS/10.0
etag: "8a1cff5ad627d61:0"
x-powered-by: ASP.NET
content-type: image/x-icon
accept-ranges: bytes
content-length: 127571

GET
H3 200 MathJax_Main-Regular.woff
cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.2/fonts/HTML-CSS/TeX/woff/ 33 KB
34 KB 40ms
25ms Font
application/octet-stream 2606:4700::6811:190e
CLOUDFLARENET

General

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Full URL

https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.2/fonts/HTML-CSS/TeX/woff/MathJax_Main-Regular.woff?V=2.7.2

Protocol

Security

QUIC, , AES_128_GCM

Server

2606:4700::6811:190e , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

55c77dfef369aee9bf4058c15f01b7d8c245177cd0e2a6ecb1d1ae71a7443d6f

Security Headers

Name	Value
Strict-Transport-Security	max-age=15780000
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer: https://www.kalmanfilter.net/
Origin: https://www.kalmanfilter.net
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Thu, 06 Jun 2024 07:00:05 GMT
content-encoding: br
x-content-type-options: nosniff
cf-cache-status: HIT
nel: {"success_fraction":0.01,"report_to":"cf-nel","max_age":604800}
strict-transport-security: max-age=15780000
age: 7299481
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=86400
content-length: 34168
last-modified: Mon, 04 May 2020 16:13:12 GMT
server: cloudflare
cf-cdnjs-via: cfworker/kv
etag: "5eb03f18-8574"
vary: Accept-Encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=7SgJUHplOkdro5PCf9TMD7xT%2FljLgPmBUarNGqMNscEHu8uP1YsITuOKmLGc8TOWtKtvcLry1MwzFKXRLZAWhZ3lD%2Bgo3wIeRIXybxnUvQOfTWJzY5gx%2BbYaI3xu5W%2B8ygGesbFgkfZFVnVHMrNcVGqQ"}],"group":"cf-nel","max_age":604800}
content-type: application/octet-stream; charset=utf-8
access-control-allow-origin: *
cache-control: public, max-age=30672000
accept-ranges: bytes
timing-allow-origin: *
cf-ray: 88f68600db9196e8-AMS
expires: Tue, 27 May 2025 07:00:05 GMT

GET
H3 200 MathJax_Math-Italic.woff
cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.2/fonts/HTML-CSS/TeX/woff/ 19 KB
19 KB 68ms
53ms Font
application/octet-stream 2606:4700::6811:190e
CLOUDFLARENET

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Full URL

https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.2/fonts/HTML-CSS/TeX/woff/MathJax_Math-Italic.woff?V=2.7.2

Protocol

Security

QUIC, , AES_128_GCM

Server

2606:4700::6811:190e , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

8db815a915b38f569e5c06686cae5489a9a396607915fdc21eeb052e61d6c27c

Security Headers

Name	Value
Strict-Transport-Security	max-age=15780000
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer: https://www.kalmanfilter.net/
Origin: https://www.kalmanfilter.net
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Thu, 06 Jun 2024 07:00:05 GMT
content-encoding: br
x-content-type-options: nosniff
cf-cache-status: HIT
nel: {"success_fraction":0.01,"report_to":"cf-nel","max_age":604800}
strict-transport-security: max-age=15780000
age: 126174
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=86400
content-length: 19289
last-modified: Mon, 04 May 2020 16:13:12 GMT
server: cloudflare
cf-cdnjs-via: cfworker/kv
etag: "5eb03f18-4b9c"
vary: Accept-Encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=10ygu%2B7bCeoa2wf%2BvuVMvZEUv7x%2Fm4MbrB79BB%2F0xXjMsOjdrsAcvR1vlg2Ct3Hw%2Fv7mAYWnDvI2%2F3GNurHxdkAQKVwocTXLg7FBpoht1zfHXbWrvyuWzdh1fqrME3FAJSsULNYSU1u49ejoo%2FItx969"}],"group":"cf-nel","max_age":604800}
content-type: application/octet-stream; charset=utf-8
access-control-allow-origin: *
cache-control: public, max-age=30672000
accept-ranges: bytes
timing-allow-origin: *
cf-ray: 88f68600db9896e8-AMS
expires: Tue, 27 May 2025 07:00:05 GMT

GET
H3 200 MathJax_Size1-Regular.woff
cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.2/fonts/HTML-CSS/TeX/woff/ 6 KB
6 KB 67ms
52ms Font
application/octet-stream 2606:4700::6811:190e
CLOUDFLARENET

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Full URL

https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.2/fonts/HTML-CSS/TeX/woff/MathJax_Size1-Regular.woff?V=2.7.2

Protocol

Security

QUIC, , AES_128_GCM

Server

2606:4700::6811:190e , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

2cf985fbe70694eda52314ccab5a052a177691e05d90c0be44d05e57da22d001

Security Headers

Name	Value
Strict-Transport-Security	max-age=15780000
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer: https://www.kalmanfilter.net/
Origin: https://www.kalmanfilter.net
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Thu, 06 Jun 2024 07:00:05 GMT
content-encoding: br
x-content-type-options: nosniff
cf-cache-status: HIT
nel: {"success_fraction":0.01,"report_to":"cf-nel","max_age":604800}
strict-transport-security: max-age=15780000
age: 130084
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=86400
content-length: 5725
last-modified: Mon, 04 May 2020 16:13:12 GMT
server: cloudflare
cf-cdnjs-via: cfworker/kv
etag: "5eb03f18-16a0"
vary: Accept-Encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=TzBOUTL1Wosaixh0YsJK681n%2Fz1agw73TpzKZDGUUooMwZIPed%2F0BhvaqqgTGXjoIom9de7yms%2FTZ%2Bl%2B67SCvW7UHaLJa6zbnzBGYeLAlIiFBkLHPAxci%2FSvMRAUWhPxhEhWEvcEzrIVbUKu2jN5UjDX"}],"group":"cf-nel","max_age":604800}
content-type: application/octet-stream; charset=utf-8
access-control-allow-origin: *
cache-control: public, max-age=30672000
accept-ranges: bytes
timing-allow-origin: *
cf-ray: 88f68600db9496e8-AMS
expires: Tue, 27 May 2025 07:00:05 GMT

GET
H3 200 MathJax_Size4-Regular.woff
cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.2/fonts/HTML-CSS/TeX/woff/ 5 KB
6 KB 22ms
22ms Font
application/octet-stream 2606:4700::6811:190e
CLOUDFLARENET

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Full URL

https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.2/fonts/HTML-CSS/TeX/woff/MathJax_Size4-Regular.woff?V=2.7.2

Protocol

Security

QUIC, , AES_128_GCM

Server

2606:4700::6811:190e , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

b74a498e11a67b0aa866298778cdc99a79309bb81cba53c9fc6f42c1eec8b302

Security Headers

Name	Value
Strict-Transport-Security	max-age=15780000
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer: https://www.kalmanfilter.net/
Origin: https://www.kalmanfilter.net
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Thu, 06 Jun 2024 07:00:05 GMT
content-encoding: br
x-content-type-options: nosniff
cf-cache-status: HIT
nel: {"success_fraction":0.01,"report_to":"cf-nel","max_age":604800}
strict-transport-security: max-age=15780000
age: 1074576
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=86400
content-length: 5097
last-modified: Mon, 04 May 2020 16:13:12 GMT
server: cloudflare
cf-cdnjs-via: cfworker/kv
etag: "5eb03f18-1428"
vary: Accept-Encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=6Y0ALYC0xaOY2mFvMFcX0lV12P0j9NHk6FB5HpVasUbHFuGNqA%2FTLR02zZpYkBj1nfF3CEwL878XLa%2Fe5No3OnD4ZtxUby%2B2YI6tAyo%2BHCvjcLCqip0LJFMykfkMNNBdhf1qFns3bugEUpixnvqt5R91"}],"group":"cf-nel","max_age":604800}
content-type: application/octet-stream; charset=utf-8
access-control-allow-origin: *
cache-control: public, max-age=30672000
accept-ranges: bytes
timing-allow-origin: *
cf-ray: 88f686016c3196e8-AMS
expires: Tue, 27 May 2025 07:00:05 GMT

Verdicts & Comments Add Verdict or Comment

15 JavaScript Global Variables

These are the non-standard "global" variables defined on the window object. These can be helpful in identifying possible client-side frameworks and code.

6 Cookies

Cookies are little pieces of information stored in the browser of a user. Whenever a user visits the site again, he will also send his cookie values, thus allowing the website to re-identify him even if he changed locations. This is how permanent logins work.

Domain/Path	Expires	Name / Value
www.kalmanfilter.net/	1969-12-31 23:59:59	Name: ASPSESSIONIDCUCCTRAC Value: GKLHNCKALOONEJGMOOOPKAFN
.kalmanfilter.net/	1970-01-20 21:09:03	Name: _gid Value: GA1.2.1671452245.1717657205
.kalmanfilter.net/	1970-01-20 21:07:37	Name: _gat_gtag_UA_1608873_2 Value: 1
.kalmanfilter.net/	1970-01-21 06:43:37	Name: _ga_D24V8KSHP1 Value: GS1.1.1717657205.1.0.1717657205.0.0.0
.kalmanfilter.net/	1970-01-21 06:43:37	Name: _ga Value: GA1.1.1386134924.1717657205
www.kalmanfilter.net/	1969-12-31 23:59:59	Name: asw Value: {"lang":"en","position":"bottom-right"}

Indicators

This is a term in the security industry to describe indicators such as IPs, Domains, Hashes, etc. This does not imply that any of these indicate malicious activity.

cdn.jsdelivr.net
cdnjs.cloudflare.com
fonts.googleapis.com
fonts.gstatic.com
region1.google-analytics.com
stats.g.doubleclick.net
website-widgets.pages.dev
www.google-analytics.com
www.googletagmanager.com
www.kalmanfilter.net
2001:4860:4802:34::36
2606:4700:310c::ac42:2f70
2606:4700::6811:190e
2607:f1c0:100f:f000::253
2a00:1450:4001:803::200a
2a00:1450:4001:803::200e
2a00:1450:4001:809::2008
2a00:1450:4001:80f::2003
2a00:1450:400c:c00::9d
2a04:4e42:200::485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www.kalmanfilter.net Open in urlscan Pro 2607:f1c0:100f:f000::253 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Page Title

Page URL History Show full URLs

Detected technologies

Page Statistics

39 Requests

100 %HTTPS

100 %IPv6

9 Domains

10 Subdomains

10 IPs

3 Countries

1380 kBTransfer

2493 kBSize

6 Cookies

1 Outgoing links

Page URL History

Redirected requests

39 HTTP transactions Everything HTML Script AJAX CSS Image Expand all 0 data transactions

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www.kalmanfilter.net Open in urlscan Pro
2607:f1c0:100f:f000::253 Public Scan

Screenshot
Live screenshot

Full Image

39
Requests

100 %
HTTPS

100 %
IPv6

9
Domains

10
Subdomains

10
IPs

3
Countries

1380 kB
Transfer

2493 kB
Size

6
Cookies

39 HTTP transactions
0 data transactions