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://blog-affqbtuhh.mit-edu.top/post/7639845012

  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="390"></head><body class="no-js"><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: "blog-affqbtuhh.mit-edu.top",cType: 'managed',cRay: '90f7e057cb1481df',cH: 'Qgrv1vPSdT2WaAZK.Hmrs2qDwD9eawep9FlsNKMYKgQ-1739146228-1.2.1.1-dGRocNL6CCHUcE37yHgVYNiKMSkxRgVd5DNty7YHIr_XEQsBZ6vkaW1SnVYvaFWg',cUPMDTk: "\/post\/7639845012?__cf_chl_tk=BazvhnFLcmMxSM9hVYQVEpxSpu4rG2PtmqBigTWWavQ-1739146228-1.0.1.1-7YwYavMJ7GSSVbuNrjcmJ2O7VpJG41pzx7TaOyveUdg",cFPWv: 'g',cITimeS: '1739146228',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7639845012?__cf_chl_f_tk=BazvhnFLcmMxSM9hVYQVEpxSpu4rG2PtmqBigTWWavQ-1739146228-1.0.1.1-7YwYavMJ7GSSVbuNrjcmJ2O7VpJG41pzx7TaOyveUdg",md: "WrlM95SgmVuTT.K.FGaT30uBx_1KJC3W7EtY2H2HgsE-1739146228-1.2.1.1-5yMVS4qyLPjsqIyse6WcFLRRFJ4sT33qQ_vtrFEzjuC.41jyiPSP5KNm7gGCGlQcRqRgZyMmBzMSRJU0WLmYNG0AcwCmRJa5ZD7QttMj6bMlVayq_mImhI6hmu6ji0y6TIJxpJDA5pSf48stfEU88LtRemfr8ikYdVxKm8KvPMOdJ5QG._KrqnErnl.z2_.R4DB0VfTKFykc1DSLsWuo95DANzjIShXL6y67GwoGwP2M848AruGLP7lx0pSIR1dlox1SyugQRrmo_Zes9pMnmNG2EjOE5AJZTuP5jM_DD00kSkMC9JK2ddUo8jfn_qqKfZBuexf3KZzS3_5RLPXKEci2PHjXGmhuHfpaxvU6vXB.X2YMyPfzJRnYzXQdACTvk5aByv2fWWNCvHAsgcoXu.nlqHhj_kIIxdpa4ZYYCjWbv7xSkfSQf97PGsUlEu.NcKaZEl.rfkzvvLFb1YgXR_xz6HaC84aV7LNGpt9DpzSNOlnbRuU5uQojBKdyH.BIOsfI5FLPpPkqkIFdOtmTaR4fEcuXNAdhDvrPnx.4zAuI1.qf51MmjclOvSdFmQYArXwxwt0LQehFnEuBuR37pvcsb4UvQKMinNVWi4ZFD3HUcKjk97UyW2B4OWoPZGIea8BtBx4cb50pT3MGQgSVAJJjg_ZxKl0UlAfcf46l3nIrU8KeC09K3LfPAYGmZRgH.66RQXbl4c0xh98fQcpW0N6zkcmjdde8A_wXPfUF2HLQgYyX6l7D1bNgaByrbLhUQYqKEM91ReHALlIQwMnEx7YScv0DBagJqybpckwWh61TaUdoTBDHVTGduqy02b0S1U_ctGRw2GJrI2JAbglynBiYzKEX6pZ32a9zcMabCHuf9op2noTPiSv2.b2nGrIpqn5O9fmB4K8X0gCuHpIJ7nYRuq8wx_aT.NdXmO428xUI2EDFmAUz_eYyB68Ax_lAqgsuVyQN9a533tFG.vMZFwR0hds1TMrOXDNC3gB0eWOMj5N1nGU2G.qz2zc5KqO.C.mT3y7tl4_Pe4huPvJhED3P2MnepokxhpDQ4xLJe8wmcyKQ4aNPjIq_3OBHfiXYLZXffIAcsyfcjsVbNd.oYm8B2ekm2pgt2mwX38hv1XoxLRv2tWlDnSO6Jw_wVFSUweeoDdDm1kaYhWiFMrX8tFMaD4UQItYa5MXgoRN.Z_ZAUt8AXZPdI3LK6L6r5j8pNSMMikX_wz.aMoJEGfyyjzudQqe2d2nadzXvW7YC4DVIJmFF9ohCMDYrMGhb7Y_WtJgqunO1aKJDe4ZjWv7pu3Iozv22wpG3fyJXMJC2ZczKlR7LxxQ5XYZnCII8XospzE4aMwVLnToiuCk.sIoH5KqfNMfh_J95wuW4IivtkkBatGqRw0lfSDTXXIim.hTpoutt4zGj45ahFp7dgK.mCgPvnCuBqYzm4ifICgtTkfjnHTYjBN_iBg.fFvQe68wtstcJ0vpdM._0rBFHYUYYFXDSMK3FItYPzxolovOHxK2Y6Sz.7w2uCmGZ6XPmWssjB0DGDbZAbbX68i1ixeNICWf8YMTnH7TJ32_UkajayvcwhDv8JOeRabBNmcJM0LPY4nQ7GtkifBhWwO5aIhPX7MwE9SUxp0.WvQDYD014TQrRFYE.278XF2U85bLpv2re8PKju8a2PJbOwGZMft1kU3P3k.qJXyFls3af2yu6Bh.ERrXFL4JN_CcDhDPFibvFKS2QXnCLbDmvMj2Li9pA248E163ha9WuZZEjmn.sW9ofUIWkvSANlhawfRI6dQD6g9zrito8JPEfpxODvKUvzUj4qSndU4ptJ8sExvKLm_9X52.kic8yc6ScvZNE8AM_ywYgxktxr7S_X6rMLGaWYWyO44rFZwQsLLalixfpRVWl2jxzCwrWB6ohmDA8NasVPWNaSiLqAX8nwBxxTOSca5MDIlTlxOa10CzqAH0tRecFlatj6hylUlFOjJKhrRqHlquN_2d_dnBIVy_2LjkAj.AT35sil9n.rAqQpYzz91Jnw5awYjqTWzCabDuygmp0fhZ8.8K1ttPx4asp3bPYEv1ow0jwxIg1WXKaI7F_pV7IVD3Ipx9ugG0OX9m3GjMvIOhlGMk18Eed4bzaEKiiz8CLWheJwDRdZaZpJUKbKTfCJdDhuQ8FgrukcdydduV8FR1SHEjIf4zhk1Q_XyLc71KoD.9y1sANGRutrOWMquNmKiXXHhEB2kxQqd5HYfoA",mdrd: "1.lWVLV_cSq2wuCX2ypgijwTtfPvDo5hjuXmwEngpZ8-1739146228-1.2.1.1-AXrmV5kD6jCR7ZtUiWG1eKvq9rxmR8T9OxmRz3XKS75NWSK0tqxGgN.4HRn7k_TtI_s3.i762XrAsQsReTcS7Cz0792nnpvwrlXm352UBP8ugK_QMOYKD23Mm7QDkHlem7ihMlJGkFdlc.imnzCwB2FxYZ6eQ3F06vn0MotHT_zql9XhpJXhqJEFhQHvu_3kfmlk8Q4lhUApCs6vJxkMWkREIhFt9NJh16GIcQyBfcynGqKIolE37FiYeC98tqON1ignixkas.J2uNnTbAuYbgiwX.lxCVffBHtEF02s9Kavo9g3e4RceAhjtRO7rkqOrfnQiMZX9WLATZE_GP2TFmql4am3U37EcL8kkVVoL0llbxWkK0JEPJRki0xzO308UUDdnegwCrnP_aCSO9fknAbTRV.IpcvD_6SyZS7Ilr65ka2G2o1PCG2lWmNcXD_.gvKBJwZ4b81w4xDX9iBdsfp2V3ohzZp7NJclTPgm7uupnoJj397L7yJFkBLvbH9iiz8fii.JYxTPCyACKQv2.s7jsNMTMFbcQ18oc85rkDIVm3pBBuYA.yEmVDJxGpXYhMYpYUxJipfTyxUqbcg0X6bsFFuEplN08RyVl60Gjnl4OhtsTYIUHO8pLbm7LYBrM_GgxtxTWyfLCOx1GB5gIOJNF4.kCXKpQDCWDGmyEwCqISgElW2ynPpT9hezfHgBNN21Dctff02FeZb_7dx.5_cyE2sftLJwZpf5IKyUE.A4EILmJL.xfrlFvZl4XDSDAl3sixM7s8a2cKcPEX09D8DgXYjLZrP5kKyeQBa2Vx9JsvQCik9P5G2c5gGdqy9mc_TcRnOzADTwgi2wZB5GVatH2iiXg5zazWz3wz9adqcSpX7cksmxlmjTtzci1_Wes0JMdoJ0MtokgAroFWKdoZPRFr1oCqPhJQ3hkIO.Emxse5JXzzTMJR.Awu56bfS_xysz4sU8SkMadbkmarovf8ur4X5_Sz6JqEUnmUjqlN0kwp1dOEs4zEyWSZ3wiZ4LqVcgLKeW0jWrxj6clfgJ9tuCgvv7wx7qckmE7EHhNWW2yBQATDFCPg0IYfXhR.gLiCTRiMVeCsWW5UkeXqMYhTKZdVQF1BjJXAUy81y.zY0leYc8L5CGSu__M7cPts_Kv4d2KbuViH6MWn65KP_NOQLSULEAFDsuGli_ZdetsSPkZfg610ljwOJ.aIIIfk0MZL5i5nZR0qc5giQgk15svoDkH0pFy9c4K6KMf4Sauf7kvuof6l4YZnIBDLv.dQt8MFnp9s5hXKCAOfDEeKGMtIqpFZ9xnheeiRrrspu7AnVwLMdsPNouetryO3_6rL9.ZKvNnZondtVly8iHDppOQFxMCmb6aOUNJyO.pXOS2mQ_n3JEYA_s1aDiPHSyqObjo69C6siJGpR2FAkOJeYUr9fAhD0atJa1JRRxBjL6hnsxXP_ptBrIslEcn69MFVVkJN6EJvdUlfAWFq4884TOZXpu8y5D0nJuK2nbajRPAw38bNVqceoBvqqBB1Uon2MBbqwgzFmxcvkExZOHvA3BeBYpMfRTCuPSSFyoTM4Os934EV_oHi0qzXmB9g1Kjn8blDq1dslb1KWPSvjcfrbwg8htvcBLOt6CMje.PgWuDTdpLJciJWxb1Rm3kUDH9Lv66CfCc793L5NA3YNzw5uhf_4C.CAqwIRIzgq_gKoZwV6Qidz0MIE2TRxGnErbZaVSD8ImI7BmPuRClYsfuXLJfcwB9pKyVW64i3JKUKLbx12LrkXIK73UzixK9uxeERkJqnEDoDPwB4_tLeayZwoAVDPqQC0LATAlJTxya72fnwlV0b05pd7b7Ds1Ie4PCkdI"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7e057cb1481df';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, "\/post\/7639845012?__cf_chl_rt_tk=BazvhnFLcmMxSM9hVYQVEpxSpu4rG2PtmqBigTWWavQ-1739146228-1.0.1.1-7YwYavMJ7GSSVbuNrjcmJ2O7VpJG41pzx7TaOyveUdg" + 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