Domain tech-challenge.calco.nl
CLOUDFLARENET
Software information

cloudflare cloudflare

tcp/443 tcp/80 tcp/8443

  • Open service 2606:4700:20::681a:5c7:8443 · tech-challenge.calco.nl

    2026-01-21 16:04 

    HTTP/1.1 522 <none>
Date: Wed, 21 Jan 2026 16:04:55 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 15
Connection: close
Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Expires: Thu, 01 Jan 1970 00:00:01 GMT
referrer-policy: same-origin
x-frame-options: SAMEORIGIN
expect-ct: max-age=86400, enforce
x-content-type-options: nosniff
x-xss-protection: 1; mode=block
Server: cloudflare
CF-RAY: 9c180c591e2d8538-EWR
alt-svc: h3=":8443"; ma=86400


error code: 522
    Found 2026-01-21 by HttpPlugin
    Create report

  • Open service 2606:4700:20::681a:4c7:443 · tech-challenge.calco.nl

    2026-01-21 16:04 

    HTTP/1.1 522 <none>
Date: Wed, 21 Jan 2026 16:04:55 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 15
Connection: close
Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Expires: Thu, 01 Jan 1970 00:00:01 GMT
referrer-policy: same-origin
x-frame-options: SAMEORIGIN
expect-ct: max-age=86400, enforce
x-content-type-options: nosniff
x-xss-protection: 1; mode=block
Server: cloudflare
CF-RAY: 9c180c59cfe3df76-AMS
alt-svc: h3=":443"; ma=86400


error code: 522
    Found 2026-01-21 by HttpPlugin
    Create report

  • Open service 2606:4700:20::681a:5c7:80 · tech-challenge.calco.nl

    2026-01-21 16:04 

    HTTP/1.1 301 Moved Permanently
Date: Wed, 21 Jan 2026 16:04:35 GMT
Content-Length: 0
Connection: close
Location: https://tech-challenge.calco.nl/
Report-To: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=Y2up9%2B7oSGFSYWhhZus8fejvvoQv2yZUNHaJI19TMu4r%2B5HVKkjZWBWDcWjiwblIla%2F3zJwR82MlArTwUIh2zt6IN%2FvCYUsAIC88IBDNOP1yx%2F3wcZvjqOB%2BuIRkYp76K1U%3D"}]}
Nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
expect-ct: max-age=86400, enforce
referrer-policy: same-origin
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
x-xss-protection: 1; mode=block
Server: cloudflare
CF-RAY: 9c180c590961aecd-SIN
alt-svc: h3=":443"; ma=86400
    Found 2026-01-21 by HttpPlugin
    Create report

  • Open service 2606:4700:20::681a:4c7:8443 · tech-challenge.calco.nl

    2026-01-21 16:04 

    HTTP/1.1 522 <none>
Date: Wed, 21 Jan 2026 16:04:55 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 15
Connection: close
Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Expires: Thu, 01 Jan 1970 00:00:01 GMT
referrer-policy: same-origin
x-frame-options: SAMEORIGIN
expect-ct: max-age=86400, enforce
x-content-type-options: nosniff
x-xss-protection: 1; mode=block
Server: cloudflare
CF-RAY: 9c180c58fb66fd6c-SIN
alt-svc: h3=":8443"; ma=86400


error code: 522
    Found 2026-01-21 by HttpPlugin
    Create report

  • Open service 104.26.4.199:443 · tech-challenge.calco.nl

    2026-01-21 16:04 

    HTTP/1.1 522 <none>
Date: Wed, 21 Jan 2026 16:04:55 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 15
Connection: close
Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Expires: Thu, 01 Jan 1970 00:00:01 GMT
referrer-policy: same-origin
x-frame-options: SAMEORIGIN
expect-ct: max-age=86400, enforce
x-content-type-options: nosniff
x-xss-protection: 1; mode=block
Server: cloudflare
CF-RAY: 9c180c58e80c89aa-SIN
alt-svc: h3=":443"; ma=86400


error code: 522
    Found 2026-01-21 by HttpPlugin
    Create report

  • Open service 172.67.74.34:443 · tech-challenge.calco.nl

    2026-01-21 16:04 

    HTTP/1.1 522 <none>
Date: Wed, 21 Jan 2026 16:04:55 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 15
Connection: close
Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Expires: Thu, 01 Jan 1970 00:00:01 GMT
referrer-policy: same-origin
x-frame-options: SAMEORIGIN
expect-ct: max-age=86400, enforce
x-content-type-options: nosniff
x-xss-protection: 1; mode=block
Server: cloudflare
CF-RAY: 9c180c58f9a7fdb3-SIN
alt-svc: h3=":443"; ma=86400


error code: 522
    Found 2026-01-21 by HttpPlugin
    Create report

  • Open service 104.26.4.199:80 · tech-challenge.calco.nl

    2026-01-21 16:04 

    HTTP/1.1 301 Moved Permanently
Date: Wed, 21 Jan 2026 16:04:35 GMT
Content-Length: 0
Connection: close
Location: https://tech-challenge.calco.nl/
Report-To: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=d%2BriFL%2BhYvTlFkrP8OE5FSZdJL%2FTpOJmtv6EtGzvX%2F4zJh5atAzyqUOsNAFrhCczpat7DHOk%2B2M%2B1f0MKxEUYb9%2BCTwM1LlGWi1jhRmE6vEyyb3narM%3D"}]}
Nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
expect-ct: max-age=86400, enforce
referrer-policy: same-origin
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
x-xss-protection: 1; mode=block
Server: cloudflare
CF-RAY: 9c180c58dd93dac8-SJC
alt-svc: h3=":443"; ma=86400
    Found 2026-01-21 by HttpPlugin
    Create report

  • Open service 2606:4700:20::ac43:4a22:443 · tech-challenge.calco.nl

    2026-01-21 16:04 

    HTTP/1.1 522 <none>
Date: Wed, 21 Jan 2026 16:04:55 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 15
Connection: close
Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Expires: Thu, 01 Jan 1970 00:00:01 GMT
referrer-policy: same-origin
x-frame-options: SAMEORIGIN
expect-ct: max-age=86400, enforce
x-content-type-options: nosniff
x-xss-protection: 1; mode=block
Server: cloudflare
CF-RAY: 9c180c58bea2f797-EWR
alt-svc: h3=":443"; ma=86400


error code: 522
    Found 2026-01-21 by HttpPlugin
    Create report

  • Open service 2606:4700:20::681a:5c7:443 · tech-challenge.calco.nl

    2026-01-21 16:04 

    HTTP/1.1 522 <none>
Date: Wed, 21 Jan 2026 16:04:54 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 15
Connection: close
Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Expires: Thu, 01 Jan 1970 00:00:01 GMT
referrer-policy: same-origin
x-frame-options: SAMEORIGIN
expect-ct: max-age=86400, enforce
x-content-type-options: nosniff
x-xss-protection: 1; mode=block
Server: cloudflare
CF-RAY: 9c180c58b9dedc81-FRA
alt-svc: h3=":443"; ma=86400


error code: 522
    Found 2026-01-21 by HttpPlugin
    Create report

  • Open service 2606:4700:20::ac43:4a22:8443 · tech-challenge.calco.nl

    2026-01-21 16:04 

    HTTP/1.1 522 <none>
Date: Wed, 21 Jan 2026 16:04:55 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 15
Connection: close
Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Expires: Thu, 01 Jan 1970 00:00:01 GMT
referrer-policy: same-origin
x-frame-options: SAMEORIGIN
expect-ct: max-age=86400, enforce
x-content-type-options: nosniff
x-xss-protection: 1; mode=block
Server: cloudflare
CF-RAY: 9c180c58bbb70baa-AMS
alt-svc: h3=":8443"; ma=86400


error code: 522
    Found 2026-01-21 by HttpPlugin
    Create report

  • Open service 2606:4700:20::681a:4c7:80 · tech-challenge.calco.nl

    2026-01-21 16:04 

    HTTP/1.1 301 Moved Permanently
Date: Wed, 21 Jan 2026 16:04:35 GMT
Content-Length: 0
Connection: close
Location: https://tech-challenge.calco.nl/
Report-To: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=okAclOAHcViZvmeLYfG7Jwb0DtMwBxIuhEesGRIDEQRWvrIccyQ2eWqK2qrnaLbioGtqdDGUfIEybHuWkWj28BJtWWe4%2BXw2gzGKdcYkTCMhlnk02tlxujuiTdWqmzAWZzQ%3D"}]}
Nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
expect-ct: max-age=86400, enforce
referrer-policy: same-origin
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
x-xss-protection: 1; mode=block
Server: cloudflare
CF-RAY: 9c180c589b55dbb1-FRA
alt-svc: h3=":443"; ma=86400
    Found 2026-01-21 by HttpPlugin
    Create report

  • Open service 2606:4700:20::ac43:4a22:80 · tech-challenge.calco.nl

    2026-01-21 16:04 

    HTTP/1.1 301 Moved Permanently
Date: Wed, 21 Jan 2026 16:04:35 GMT
Content-Length: 0
Connection: close
Location: https://tech-challenge.calco.nl/
Report-To: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=2EKwNSsdFqsX3aFR54koK98HqKIaKg9dEubrNhqDOddOGnO4H69gf7Fb%2FDUwL4evX9dkHku4dhWEnD0oynKYT7x1tLPUrSVPK4hJD%2Fut4vDyTHarOkncJ8w9mmvPRaZkMig%3D"}]}
Nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
expect-ct: max-age=86400, enforce
referrer-policy: same-origin
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
x-xss-protection: 1; mode=block
Server: cloudflare
CF-RAY: 9c180c588bebcd34-LHR
alt-svc: h3=":443"; ma=86400
    Found 2026-01-21 by HttpPlugin
    Create report

  • Open service 104.26.5.199:8443 · tech-challenge.calco.nl

    2026-01-21 16:04 

    HTTP/1.1 522 <none>
Date: Wed, 21 Jan 2026 16:04:54 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 15
Connection: close
Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Expires: Thu, 01 Jan 1970 00:00:01 GMT
referrer-policy: same-origin
x-frame-options: SAMEORIGIN
expect-ct: max-age=86400, enforce
x-content-type-options: nosniff
x-xss-protection: 1; mode=block
Server: cloudflare
CF-RAY: 9c180c587eebd2ea-FRA
alt-svc: h3=":8443"; ma=86400


error code: 522
    Found 2026-01-21 by HttpPlugin
    Create report

  • Open service 104.26.5.199:80 · tech-challenge.calco.nl

    2026-01-21 16:04 

    HTTP/1.1 301 Moved Permanently
Date: Wed, 21 Jan 2026 16:04:35 GMT
Content-Length: 0
Connection: close
Location: https://tech-challenge.calco.nl/
Report-To: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=R6Q2tcy9WhmfuEQhOkZ2E1mhSW6j2O8ElCGi98vVqsbdzaEU9dJF53mr7cYXDODhsks%2BPZuKcMGQZvFIUJ3Efv3SLyxiyIhu1IFB1ga%2Bp4SF9USBcYk%3D"}]}
Nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
expect-ct: max-age=86400, enforce
referrer-policy: same-origin
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
x-xss-protection: 1; mode=block
Server: cloudflare
CF-RAY: 9c180c587aafdc6c-FRA
alt-svc: h3=":443"; ma=86400
    Found 2026-01-21 by HttpPlugin
    Create report

  • Open service 104.26.5.199:443 · tech-challenge.calco.nl

    2026-01-21 16:04 

    HTTP/1.1 522 <none>
Date: Wed, 21 Jan 2026 16:04:54 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 15
Connection: close
Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Expires: Thu, 01 Jan 1970 00:00:01 GMT
referrer-policy: same-origin
x-frame-options: SAMEORIGIN
expect-ct: max-age=86400, enforce
x-content-type-options: nosniff
x-xss-protection: 1; mode=block
Server: cloudflare
CF-RAY: 9c180c586c4bdc92-FRA
alt-svc: h3=":443"; ma=86400


error code: 522
    Found 2026-01-21 by HttpPlugin
    Create report

  • Open service 104.26.4.199:8443 · tech-challenge.calco.nl

    2026-01-21 16:04 

    HTTP/1.1 522 <none>
Date: Wed, 21 Jan 2026 16:04:54 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 15
Connection: close
Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Expires: Thu, 01 Jan 1970 00:00:01 GMT
referrer-policy: same-origin
x-frame-options: SAMEORIGIN
expect-ct: max-age=86400, enforce
x-content-type-options: nosniff
x-xss-protection: 1; mode=block
Server: cloudflare
CF-RAY: 9c180c589df4dca5-FRA
alt-svc: h3=":8443"; ma=86400


error code: 522
    Found 2026-01-21 by HttpPlugin
    Create report

  • Open service 172.67.74.34:80 · tech-challenge.calco.nl

    2026-01-21 16:04 

    HTTP/1.1 301 Moved Permanently
Date: Wed, 21 Jan 2026 16:04:35 GMT
Content-Length: 0
Connection: close
Location: https://tech-challenge.calco.nl/
Report-To: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=38nEqdB4CxZrS0YwHe7eMl9HZgM0Gh9Vnjb8TAz%2FfA2k7Yn8jSglECGWcAOcnMqMZAncUPclnALdtmSwfxbksxhI8l6L7q6M20RIERnAk9jZ8pYmI0w%3D"}]}
Nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
expect-ct: max-age=86400, enforce
referrer-policy: same-origin
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
x-xss-protection: 1; mode=block
Server: cloudflare
CF-RAY: 9c180c587b6ddbd4-FRA
alt-svc: h3=":443"; ma=86400
    Found 2026-01-21 by HttpPlugin
    Create report

  • Open service 172.67.74.34:8443 · tech-challenge.calco.nl

    2026-01-21 16:04 

    HTTP/1.1 522 <none>
Date: Wed, 21 Jan 2026 16:04:54 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 15
Connection: close
Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Expires: Thu, 01 Jan 1970 00:00:01 GMT
referrer-policy: same-origin
x-frame-options: SAMEORIGIN
expect-ct: max-age=86400, enforce
x-content-type-options: nosniff
x-xss-protection: 1; mode=block
Server: cloudflare
CF-RAY: 9c180c585a386913-FRA
alt-svc: h3=":8443"; ma=86400


error code: 522
    Found 2026-01-21 by HttpPlugin
    Create report

  • Open service 104.26.5.199:443 · tech-challenge.calco.nl

    2026-01-10 09:49 

    HTTP/1.1 522 <none>
Date: Sat, 10 Jan 2026 09:50:07 GMT
Content-Type: text/plain; charset=UTF-8
Content-Length: 15
Connection: close
Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Expires: Thu, 01 Jan 1970 00:00:01 GMT
referrer-policy: same-origin
x-frame-options: SAMEORIGIN
expect-ct: max-age=86400, enforce
x-content-type-options: nosniff
x-xss-protection: 1; mode=block
Server: cloudflare
CF-RAY: 9bbb4438987e3600-FRA
alt-svc: h3=":443"; ma=86400


error code: 522
    Found 2026-01-10 by HttpPlugin
    Create report
tech-challenge.calco.nl
Fingerprint:
1e72de5840392d8e2a2ff89ef4236977fdbc7c10a665574cc320aa7965a06354
CN:
tech-challenge.calco.nl
Key:
ECDSA-256
Issuer:
WE1
Not before:
2025-11-23 13:48
Not after:
2026-02-21 14:48
Domain summary

tech-challenge.calco.nl 18

1 recorded
IP summary

2606:4700:20::681a:5c7 1 2606:4700:20::681a:4c7 1 104.26.4.199 1 172.67.74.34 1 2606:4700:20::ac43:4a22 1 104.26.5.199 1

6 recorded

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