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403 Forbidden - ctsei.com
HTTP Status: 403
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Date: Sat, 10 May 2025 16:45:21 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: close
accept-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, UA
cf-mitigated: challenge
critical-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, UA
cross-origin-embedder-policy: require-corp
cross-origin-opener-policy: same-origin
cross-origin-resource-policy: same-origin
origin-agent-cluster: ?1
permissions-policy: accelerometer=(),autoplay=(),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=()
referrer-policy: same-origin
server-timing: chlray;desc="93dae81288ba92d0"
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
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
Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=adDgSWtzzhwtsAB8nOreWk%2BSr4wVSKWb8N6fKF8UoCWlFRLFWx2xNwj%2B5SaXp%2B561N%2B5xly9SqZrB5Ac0s3SeBJYrPlMdpcF2w%2B%2BEJZRqqbTIcF5am349XFQPJq6qN2P%2BxlL79J85IY%3D"}],"group":"cf-nel","max_age":604800}
NEL: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
Server: cloudflare
CF-RAY: 93dae81288ba92d0-CPH
alt-svc: h3=":443"; ma=86400
server-timing: cfL4;desc="?proto=TCP&rtt=16251&min_rtt=16251&rtt_var=8125&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=165&delivery_rate=0&cwnd=249&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"

HTTP Code 403 Forbidden

403 status code indicates that access to the requested resource is denied, even with authentication.

When is Code 403 used?

  • When accessing restricted content without necessary permissions
  • When security rules block a request
  • When an IP address is banned

What does Code 403 mean for the user?

The user is informed that they do not have permission to access the resource.

GET / HTTP/1.1
Host: ctsei.com
Accept: */*
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])

<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><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;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#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-equiv="refresh" content="360"></head><body><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "ctsei.com",cType: 'interactive',cRay: '93dae81288ba92d0',cH: 'w1heIKL5InvEdztJKDuw07NOA5v1ZxuzmKM.NhOdMX0-1746895521-1.2.1.1-1zMBp239GinBCZToZH3.Incr2Xw_NPhaO_QeVIQS2wwu5cuaTIst4XiOnbblfPha',cUPMDTk: "\/?__cf_chl_tk=Tdv0e8pHtDeYJQlD5tIhzBb3Kq0r1X0QDsE3KeTwqdM-1746895521-1.0.1.1-KZNGMJx7opi6vmHTzeRolvWB52EXIBExROR8qq3P6DI",cFPWv: 'b',cITimeS: '1746895521',cTplC: 0,cTplV: 5,cTplB: 'cf',fa: "\/?__cf_chl_f_tk=Tdv0e8pHtDeYJQlD5tIhzBb3Kq0r1X0QDsE3KeTwqdM-1746895521-1.0.1.1-KZNGMJx7opi6vmHTzeRolvWB52EXIBExROR8qq3P6DI",md: "2wugD7KibiomJUcSgU3cA.91wuavUc.44W3IbV4y5GY-1746895521-1.2.1.1-2M38Px4.d9wvbmQDUYjVCr32b_osMjtZ651.EyLHSg1JYXq4NOyny6bdK.DdIxOB7OtmuSs7sz6MRd6LF5ZeNdjo3ZXJKL8R.fmhPtmSCIwwV9kn.YnDA20Q_CtN7hBKxu.vsuI.IDkTEoiHkPhBi5NDlzzWBM_nLuyp2_eafy5eX7WB1OiQOnFvWyK_f2_v.ZJft4CJ1z5UxLG2TuhgmWaqCjrNYbN7i2mF9qcxfZKi6g79MHAEb3.IhnAhTbXVhlMnYFhgBUhsSBZYC7UGRO1toDpzRnmqORJ0Vd.9W3e1vrsSNAzDg5IExB7uZj64ImUDXRyaiqx7puMKK0xZaZjip9I.ghbSpWvOKP27v170AarEwbn.Mlv.OvwR.vXlUOENx.yH09rlyY2IjpWAHEQXKWieNXoPfB3AJpIV63izOSsQF9puIowl3w38jTBSyZzr2WTAWmfe285cL2NcCHdmd8w2bLHs0Q97rZETY9Z65fh3oxAySYEwss1weQs7PLlirM66qG9n5izKGxjOxASS4cze59BYYu_mp5p8iAx4ArTG6fp_3xjk.vuyPw4ROnpOaalkjmSBnH_qF9cdoEPIWtgwffGYp12CnR7sptr.wuCSVbK4pEuPm5PZdWS9PlOC0HH0A8swsdnmcwkvEsDomNLVv9S8wc1ayXfdp33n7NiJwcoKFe.EV1LY.IgiSxRJPJk7XWwXIG9qQNbQAyOVZ_cXAcw3OlpcOJ2LMmTku0HshsWKZ16FoWpWBavvcd8bHq8ATrOx5vvr0VbVE8A58f25zx6jRJfLjkXqo7v9cfTYuh3vdKN3V2ByCNuCkkZO31Q9Pxq2jmt6PqpnTqYxCwxVV3CyaDeZXa.7D3JZvnxF1dWRQoDlxYyUViCKjl3ZlAkXy.ueDPAxw_pf6ENDJN_zQdfIYfA7yaMdji8zAvu.jFd6oPG4NVTOHGnWpCGr9OuWLLsQXH.X9YdIGCj5c50Dx2o_Lt5L8pK8pAOxc_7fAzaXIWJArr1JJANL",mdrd: "jvWp6vS7YAZr0EMeHIc5QIs6uMXnhAAROTuDgheMzvM-1746895521-1.2.1.1-MkhnYaPqO2Gk89Ede4KDyGjjtZu2a05eBUN3nCVgO.aYgohj9zL0T0LmrcQeo4lX.0aI_YEqEXYF69_4auU6PUSUtsYHMJkwgFc3AqBZi2HxVheMU4r6elK5cjO1Tyjgt.SW1ljp.pUR3dSjRDzSfhUYLgA0JyXT9OqEZE2m9cnIHGGOPIJa0MA7_BXkYD63KLlGAe8zgQil2tvm_oul0QkhkGp0.GB3VSFU_8TAnALKFV4oUOnobl7mWE4z9xkMkDvJBahROmm07Fy_mCDz_je2gx2ZvTmLOcL_eMATNyoALxsrlcmi6J3_HhtIjU5_r1HKMeV9WuJVptgZ4SubLTYhAFyLrScWpjMQsd2TqMRj_Awl.haR0IRkdr6Qh9o2uRDAN9eRuiu55OKxQ.oEg19Elb5T4m8bWB9YSAH7WWCXWUH_SU3EBLnLAbmJm8adtcB.oG.PgceMNIxISf1rzquPWK5jiSY4pvj46s16ZOOALfPV.RLk9s89ZwUvS7CP9qLn.1nnop_CpLl5.iobUO.lDnt6_blhdNhn1o54vFJyBANKeVhrIiE9OM6sKF7IIG.uVmCpgBw0nfrs73UsSb3FIDHcS7omkPxF8JGziaWfCGWQU9fOrMV8tgsK3Zr50MUAPmFgpEizhRkhYT3Vu896TRoAbHpmlkAriAefi9Y"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=93dae81288ba92d0';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? 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Whois info of domain

Domain Name: CTSEI.COM
Registry Domain ID: 2102638848_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.gname.com
Registrar URL: http://www.gname.com
Updated Date: 2024-04-22T00:38:58Z
Creation Date: 2017-03-06T05:50:03Z
Registry Expiry Date: 2026-03-06T05:50:03Z
Registrar: Gname.com Pte. Ltd.
Registrar IANA ID: 1923
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +65.65189986
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: LEAH.NS.CLOUDFLARE.COM
Name Server: MIKE.NS.CLOUDFLARE.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-10T16:45:06Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
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