It looks like this is a web page, not a feed. I looked for a feed associated with this page, but couldn't find one. Please enter the address of your feed to validate.

Source: https://km.bsru.ac.th

  1. <!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: "km.bsru.ac.th",cType: 'managed',cRay: '93d5cb70f8760848',cH: 'yZvuysTAIF0jmShmyHixlOQz5eb6osXNyzOQ_LeeRGo-1746841920-1.2.1.1-IIrIdyTLqcH9AqkqfZzc3TuMgu7PQBWOmYR8dqWl8eSApRdRVW7Z5iZtis16Zr8M',cUPMDTk: "\/?__cf_chl_tk=jqjt8_IRQ6uGQsAsidODXpToQNF0DvF4cWfNpbPTXXo-1746841920-1.0.1.1-8xBU.kkMT77RAt58NkotuDukbnfSXmmvoAS2mtj0aGQ",cFPWv: 'b',cITimeS: '1746841920',cTplC: 0,cTplV: 5,cTplB: 'cf',fa: "\/?__cf_chl_f_tk=jqjt8_IRQ6uGQsAsidODXpToQNF0DvF4cWfNpbPTXXo-1746841920-1.0.1.1-8xBU.kkMT77RAt58NkotuDukbnfSXmmvoAS2mtj0aGQ",md: "t.96f9nazpbrqazaDdy9E6mxJWJsRBcYCQCFxj1P534-1746841920-1.2.1.1-96G4PRFKPhHHSh1oMrsZjh6vF58Ek1Rbp4B0896Oqr8nN7aLMDlXc23xlYRbM2mPvXqQsq8ODoIPsg7mEwKVdNJaPHDbj2O1nbYVRNAOmSCxQBbvgj0goeqkTJTr4Gqe5m3Hf6Gu56nNBt1t.PkEzF3Acxz8.x9wGa7vwSUy5pGcXCJ5tTBPM_HOW0kQWT8m5BOTNMqAuSyEqx.cEyzs3WlZK4xWefUXxkjNs8iNaniA1BePRi12IFk1nhfcY_DAWmcfgu868CJ5_z_.WVdEz5QRqc8On2_Y3JU35TGhnvNFbzhCoxzFCQsZMe_YbcGPiSgAYW.Q6iDth6q4qLwbl2PQpXO69vNTF4PHTXpDyOMdafEYAJD6iY1d45KXexnzWQkERqMyRoyh63Ex6eSLdJnIYrujigxyTreJWRHE0hkfL5sr80N7_3dT9t_lmLWFy5ZlF9VtbBWYFJVQrKC9ZZMO8I_fNhnjCR2FZm1QxlPoOZ32fU2WmAg7rKedhEUD7zjHB8xlKwNXa8C6Rk7luITMkwJjQM_j5I3_NiJgnx5XKVneEC8BUyjI4.vbnKpdk5c9XEjmCwpk2fJmEe17C_gkobAEI.K3E8XTqqOlZ3MlNsJfamKWtSV8ri.liWAuN43M51tcVtI8XsSDXEbrPp.RqNzIplPoBSGvTELYlLgUf1zZypsrIuf9UxmWjOVHWc7kpeh3NrjvpCayqo0ApfWy70J7k7ZmLiPtCeUHwMUMpImywNt5UYUPrImOUpQjPPOtq8VxB67Silp20K5eGw",mdrd: "YyWuYBdIju07ooc21JE1Lf9H4N5K7r5Ui4NMOmxvWM0-1746841920-1.2.1.1-YLdFbaAlVc_3jk8A_jJEiyNSbtokqLogIEznciAoqcFgaP.PsQVjf..TD_EsTifwDtRKhf.hDoKNsBKXceM7ELLRSA3E3oRBiOCPvDAJnrd4Lb3Cohzy2GV2qewKP26WirifdAG4fXUOKj7d6RSogSkySeTvGxLn58LUxNPphHY_Z8kLb4HVp3vgPDHd8gIQqz1NEMnQjPeVMMryVM1MyxeIp2GS7rwyDa50aJGhv9zm0BEHPukhWnnMJDOIpuZi1HzOxrd8Giyhs8cTGSVhaXQcSTOevNp3tp8NOdXApxGluzlmRw7EttA2sa1fgkf5kJRpES21qA7A8woY4pz9f8l.kLWfYGUL_YDP31TVDlgv0fgz9vWdsu7ugiwZacEXvWcILWs__p06u42Zd3nhH83rBi1wKrhGLLkmJ2cyFPHUtLR1dAdDlMHgkIDdu7vt.WpvLsHwWk2354eeRmB6JewC8CLpARhwltUOs74c62yRiOiRiftdPK3foyucME2WcwmXeZq_UDzEWqq8bab_RE83bFZxRLzs4heDhYstMSCH_bKvnxHkVfYaWCaNDCv9JzmW2YsSQl20l9LO5NEcZIsvofmnj8RCNDlm3tqHRn3kk706UnuoFa7kPstsAGFmT6.Jx0HvrKGFidD5SURWAlSfqC2TNv3qJgKA_tdBOYOWHYK54FaaKZ5_53liHtT4A3Hgmu1gcDHIOlbhbCfAb5eRg27SKK134kBvNQHmKthF1phMz3rIWB8TbmMfPK.H3SiQ6.L7KuKwg75mZExfAfemDDnN3sRBV7hzXADbELY1nRF0YBPQoRp0fj4iZzgAvlw3r8FAxJH.aZi10naNvG3DUszBGdt_42qyOeiwcHuQS02INpoZ7z25_QzgUaYgtJEhhf6rkpGMvsUU1d5tNT4LitZtBPb5y.Od3w7VEJWDfbKgap.ipOZX3jKJhxbR7oYxTygD5Ywk2geWZs7cOR0.mXfjSsmMXHKmlY6LVccGkyM5_iIk4F2pIwNGQGAnFBiXmhEw7jWn58ce4Sd3CnKaQ8fxeW.AHFuchTm1rlae_k_OK4fNPzWYJmcB1om_NT0Cu3c3qt7caJfX7uYqKMntpOIIyjzOPbDU74JfhVb5dRaMcNNAJDzoxdqiSzIRCxmNUEDKBkVI6oRFzs1sIWvXGnOfLZ9qhSDSynHs8YYF.kEriddcwnFLAV0jEMnb52Pez0X4EAI4JZrtWbZgP4kk.1O_XbXJgGX9GwbO1DEJzICZy02eYLgTWmBd4PysvMcglcok.huYeTKVb2099WekEKFeXZEWUyRmZRVPrvzkXBuMvMFleTR7tBRAWdvpaT5NRGt0mjvJZDBTSz4W6bAzt57_BRnScnAZ2rYNXYVFJrVvu2Zsvqpfg5PHD8ObxRFzotRUwl64RE69WGIL43TAoB7wsd_IdilIrnwApNSZZJNQt0LX3wKwqLKEX798sfNS71nNAV3g8G4c9BbiqIHjRsw80n1RfP8s2JmHUZkSE75dM3JgKZALJqzi4bDphUNrNmpyzA7e6bYVCEK6Pgv5mXUs5ZLAxnjRRGa9yWMJN7fWa5Ko4aac7SjewW6SgtbK_il0hs3q9LpTvj1YdJFc0Q1N._4WmxqZPdhpf0IXTeGvW8QVgw.fNwp1L0ht2zqXDtk6o9jtKS73QrOAUPYvPr3LDKKoePDSXSCsOUfcGfbkbjSSCuh7e0785oaHSNwlho5ijIYTll_gk6L8IRzSDQa6jH.95DZ9l.mR5OHuBpVTExrebAk9635O9Ge4vHT0_9KqmQook8ZkH3jLomnyWz4vlq27oAY7_jbjW5LW3i06zHp4wKAeSyP4JZX_pPLMdi66VyOFeRR91Jd.Fg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=93d5cb70f8760848';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/?__cf_chl_rt_tk=jqjt8_IRQ6uGQsAsidODXpToQNF0DvF4cWfNpbPTXXo-1746841920-1.0.1.1-8xBU.kkMT77RAt58NkotuDukbnfSXmmvoAS2mtj0aGQ" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>
Copyright © 2002-9 Sam Ruby, Mark Pilgrim, Joseph Walton, and Phil Ringnalda