Domain > academy.calco.nl

More information on this domain is in AlienVault OTX

DNS Resolutions

Date	IP Address
2025-11-22	104.26.4.199 (ClassC)

HTTP/1.1 301 Moved PermanentlyDate: Sat, 22 Nov 2025 13:43:25 GMTContent-Type: text/htmlContent-Length: 167Connection: keep-aliveCache-Control: max-age3600Expires: Sat, 22 Nov 2025 14:43:25 GMTLocation: https://academy.calco.nl/Report-To: {endpoints:{url:https:\/\/a.nel.cloudflare.com\/report\/v4?seoBMVkCbuJtRHVnlM6GSSx467Zgtww7p6ttAibjRxg6JZ9Fr3lpDdmwcU7agFVpn8sHvzV1RcCdlgOM5J7IkbZXvlv%2BARVSPfCH2TM67kMs7Rt9JLmqp3WzJHFOFWA4kcR4%3D},group:cf-nel,max_age:604800}NEL: {success_fraction:0,report_to:cf-nel,max_age:604800}expect-ct: max-age86400, enforcereferrer-policy: same-originx-content-type-options: nosniffx-frame-options: SAMEORIGINx-xss-protection: 1; modeblockServer: cloudflareCF-RAY: 9a28db0f1b649314-PDXalt-svc: h3:443; ma86400server-timing: cfL4;desc?protoTCP&rtt6309&min_rtt6309&rtt_var3154&sent1&recv3&lost0&retrans0&sent_bytes0&recv_bytes55&delivery_rate0&cwnd249&unsent_bytes0&cid0000000000000000&ts0&x0

html>head>title>301 Moved Permanently/title>/head>body>center>h1>301 Moved Permanently/h1>/center>hr>center>cloudflare/center>/body>/html>

Port 443

HTTP/1.1 403 ForbiddenDate: Sat, 22 Nov 2025 13:43:25 GMTContent-Type: text/html; charsetUTF-8Content-Length: 6469Connection: closeaccept-ch: Sec-CH-UA-Bitness, Sec-CH-UA-Arch, Sec-CH-UA-Full-Version, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Platform, Sec-CH-UA, UA-Bitness, UA-Arch, UA-Full-Version, UA-Mobile, UA-Model, UA-Platform-Version, UA-Platform, UAcf-mitigated: challengecritical-ch: Sec-CH-UA-Bitness, Sec-CH-UA-Arch, Sec-CH-UA-Full-Version, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Platform, Sec-CH-UA, UA-Bitness, UA-Arch, UA-Full-Version, UA-Mobile, UA-Model, UA-Platform-Version, UA-Platform, UAcross-origin-embedder-policy: require-corpcross-origin-opener-policy: same-origincross-origin-resource-policy: same-originorigin-agent-cluster: ?1permissions-policy: accelerometer(),browsing-topics(),camera(),clipboard-read(),clipboard-write(),geolocation(),gyroscope(),hid(),interest-cohort(),magnetometer(),microphone(),payment(),publickey-credentials-get(),screen-wake-lock(),serial(),sync-xhr(),usb()server-timing: chlray;desc9a28db0f6c5cf8cbCache-Control: private, max-age0, no-store, no-cache, must-revalidate, post-check0, pre-check0Expires: Thu, 01 Jan 1970 00:00:01 GMTReport-To: {endpoints:{url:https:\/\/a.nel.cloudflare.com\/report\/v4?smRfuM%2FS0DeCr1VKEvaeKi20%2FLMyFJDRBwZS57eADB2rXFQoo75t6wzcDiugyyZGF%2BV8JUn%2FJQW0R%2Flyiqt1LElRSpRxtUFVp9mcdYYd%2FBtiKLhXwmkChHX2%2BQmo6y6ndlUU%3D},group:cf-nel,max_age:604800}NEL: {success_fraction:0,report_to:cf-nel,max_age:604800}expect-ct: max-age86400, enforcereferrer-policy: same-originx-content-type-options: nosniffx-frame-options: SAMEORIGINx-xss-protection: 1; modeblockServer: cloudflareCF-RAY: 9a28db0f6c5cf8cb-PDXalt-svc: h3:443; ma86400server-timing: cfL4;desc?protoTCP&rtt5846&min_rtt5531&rtt_var1819&sent4&recv6&lost0&retrans0&sent_bytes2843&recv_bytes727&delivery_rate516313&cwnd252&unsent_bytes0&cid609bae60cbcaa8df&ts27&x0

!DOCTYPE html>html langen-US>head>title>Just a moment.../title>meta http-equivContent-Type contenttext/html; charsetUTF-8>meta http-equivX-UA-Compatible contentIEEdge>meta namerobots contentnoindex,nofollow>meta nameviewport contentwidthdevice-width,initial-scale1>style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;padding-left:1.5rem;max-width:60rem}@media (width  720px){.main-content{margin-top:4rem}}.h2{line-height:2.25rem;font-size:1.5rem;font-weight:500}@media (width  720px){.h2{line-height:1.5rem;font-size:1.25rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme: dark){body{background-color:#222;color:#d9d9d9}}/style>meta http-equivrefresh content360>/head>body>div classmain-wrapper rolemain>div classmain-content>noscript>div classh2>span idchallenge-error-text>Enable JavaScript and cookies to continue/span>/div>/noscript>/div>/div>script>(function(){window._cf_chl_opt  {cvId: 3,cZone: academy.calco.nl,cType: managed,cRay: 9a28db0f6c5cf8cb,cH: 4lzYywvFhDe2pS6qEBYEDWry9jWeknXz.DZwkdY0lvY-1763819005-1.2.1.1-fxV6Xtc3kVPqe6y2DsR0dCAfa5ETQb8hWVUKnOaujSXOMJrVaU0vZrEmz47zPMzM,cUPMDTk:\/?__cf_chl_tkNGYjzMwVMo8RExGUSNqfOmSBnKgqY.HsnB_U5WbUhAQ-1763819005-1.0.1.1-ZcGZ7U2rrg_lBmqrRcjU_1jns4pmrZ_D4pm4obd3rZc,cFPWv: b,cITimeS: 1763819005,cTplC:0,cTplV:5,cTplB: 0,fa:\/?__cf_chl_f_tkNGYjzMwVMo8RExGUSNqfOmSBnKgqY.HsnB_U5WbUhAQ-1763819005-1.0.1.1-ZcGZ7U2rrg_lBmqrRcjU_1jns4pmrZ_D4pm4obd3rZc,md: 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Domain > academy.calco.nl

Is this malicious?

DNS Resolutions

Port 80

Port 443