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-affj1mjah.mit-edu.top/post/2739541860

  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-affj1mjah.mit-edu.top",cType: 'managed',cRay: '90f7e996cfcb0668',cH: 'RPRMf1n0I1ny5oVXf7LZIvoYcEZvCy9EbTV3D0FMApM-1739146607-1.2.1.1-45ecqUz26Z_.uVY9PRjhnfXahog5282lug5DB6eufc4740eYpu3dXJWeNHENtcs3',cUPMDTk: "\/post\/2739541860?__cf_chl_tk=.kZjajyISgnSPg896Ex3UcfR5FgCfQL7b5kp8WR_AYw-1739146607-1.0.1.1-FfgUNVpwyt1oEbTUPPV4Bx7EGz8RcaZ3g3aR6jezmcc",cFPWv: 'g',cITimeS: '1739146607',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/2739541860?__cf_chl_f_tk=.kZjajyISgnSPg896Ex3UcfR5FgCfQL7b5kp8WR_AYw-1739146607-1.0.1.1-FfgUNVpwyt1oEbTUPPV4Bx7EGz8RcaZ3g3aR6jezmcc",md: ".bFiNOoykj1W9FOEK2D9nvubSiKSutM09cVzp7iD6wQ-1739146607-1.2.1.1-L2WRhjsuuz.5kHxCTsD7TfM8n1jKEDiq9XKu2ag93_A9BfMLwUCfB6_oi7bhZqUM0zWoomz_EpaRIESCZaMKpQKQ1PYNWZR0ynJJXqx_RBU4jveX1_x_eATbVGUNSBTs_zgqfjMJ3wfhNXf_7MPpati.IKdt3I2BO.W3nT.bGPFfN7uu197vmUqRvZoxOxNJ3C5YV_biiht60C5wal7n6EupEqJkhGg0w.7TuUc.s.M7nOkx0ozfMZ93NpsQQSHZZu.qKGX7JoN5k.mzMMEZXNbdC_7sCyhtEdXdiIZX6.2hTew7i2uW_SyClcoytQsHOZxEjUOk3XNBVlerrKuORHW.Z6B.CPz_5OErCyaNoLOTZsHUsuhRF0rwY7kVMGBFcsKOZll6PJHhHL6foH.0C0C2wR.7IcmSFGzG._auIqoEWS4yVAVMkA5xZuNeoATjRZxvFE0ru0gpahbN6aVPUGcB6Xqry7vOKrcp2fwmcb3XK0pKBITIz_MrsIq1761nkos0c5GXyr9_TVj_DLsWKvf6cTw7kGOYYVQC9xym5oWqoSgH4a6eR_Jp9wOTkwSePdOiepUL1rdqv6w4it9s9NFg9b5EFFzU0kh9bEw6Ikm1HKZWIB2wHdSJfdYfjzhrjNUazvrACVCQkgYY6STsqv62KwPCWgYSNrLq8nbfJrZQc4yU6Dynw40q8FiPxJ0gcnTbKBo9rsFbbKBmIvg5EQS4CtgZoJaewrOR1sZeGva7AUibOfSmW0cUEeyTpQ_Kt8DpQkahcUXbcnC2Ke2rBUQVn48aKpOe9ndOwfw0kijVpbpUKcjkBUACSUnLLQOKcLPpmXUV26yfo.JRBAURfr0T0CCP3AqyuVRrYo5FmAlrZSbBnK63tuTNW3w_tLhu39aLphvJVCmiglwXLFSoP3VF_yrVqnVG2P5UnV4cW6PQQUPxJCzTaDZzuaCJBVWs8i.Z4h.sXAu72Hz7POItUjuZ9sAtUu5T9JvRlO6gZavI5n1C2mifdjwmmGD63F1rM7Cm0Rx_0N3xt7ogm6qsnoh07kzlQ6Oy6PDRkhKdcUo78e8kSTHWRonbtmIvVgiNraJYLkuh1EUdGnLTiZ2xeQ0N34kjuFq9clkbpaI1MzAtZOjJ.ukc_Qv4.NAzsMfz814CKqW01.MzLS7ayp2YlaQHDUnZnpMVwUsl0vRO4Mp4aHgJiYGrmd5mnU5hzKcZZDOImoWcustHXIDkfFNJph8q3FlBa.LgsuBZsxGZmWVsBJqqAsra08MtQr4ToU1_R9XOyttfS.2.o8m1zRfbOJ30dkxDIamKq7npX1pp4UURJPqrM1bkrc0B4aUlIoXmj58MqLyi492EATQ36xszWvRvK91iC15Vz_VOMmCCWP.e0c9S2SBK1Gjhuj7TcZ0H.TbBBqYcVUCuBHlgmIv_tFhe8UB0_7swXBKHXlnV1VTMCXQWf.PX9J4JsL7uGdZsI8hc_KUt79UDcWxu9hv1I.G86mEVQzOd3mm2L2zurfwUbzOUy2d3jeOejKeLU2_LBwLXB3fX2i4kFvVWebkaMv1sGrHYKseMwhmhd0LuqKi8CU.MhxGm9j2Kboqc9W75tzBGXJVlT1T7mQ87MA3olkefgNib1hrK4BuItr6.5v3qtS_aWLy7DBl9n53FrHtzsMsdqbDrxa5h6AaLzyhZ.22zP_NNQjbmxOQO1nRWKY.j9EVEj.dUV8OdM.aktf5MB8KYa1ypBrqCbvLWAy8CQ9A9UF9cAaW4pU6uLX2F6ky1Op2V1zkUyuaW.dzeO9PgsflhRUhUt6MqanVy6SkskdbYSPWsQ_cpR8SCb_XCB8a7bbqfm9Md9_9SzctwRu94w5IT_ihJbzYXXxPYC29eBbe8E_qTJp.6p2EpAP_oLCI8D2K8ikzzscvVz8YobIWy0iGDV4B13h46nHQkKHGzG2CGnbtLRBYoEHeFWTPJGF0FvQJCbkEbitnLy9C6FS49jlUPj7LMif8httJZlGGTlUOBGOVhh7nKQiCInBxJRrbyeSbDFi9wHspucRmvsOzLPO8WD_3RmmvASgF9UcPJgOkTiQVm9J7ncrgCn_RgR2ZE4ky1mah4jw3vAkKbhPL_ORqz9w3RkDskaYI2QUAUrtW.3iSU_JUaP5II73R9dUKBJqzsDDrQanYIETVc3ohAK7RR8Grlouni.VIs0TS3lQ7jzVmjF1xTi2vkhGVCNkkBG__qeR3a18_frI97oBy1",mdrd: "lRN3YCYCde7BoHIYBYWEiU4ivXQeMqv4nUi0zVY_bw4-1739146607-1.2.1.1-.1VFWglGusxOtFKE6Hvw9JqP1tRT_Qd_WLjjh2NDJ42Jaaxjj5nQ16u_HWFykNdXf.dREeD6CB2XmX7Y__cnbNZ4ty9r0cs7OiTsTIk8.ktRiOP7KS68QNUnrWd0dVug8GGodqUcdhR.rdBiw9UDjK5.U70Q920n4EXwt3tHNvq5EBMpXmuMZZIuAWacNKEFJx0wIrTma51idln2wXtX5sHzeMQRB2xyVUIOX7l.6.HsTFhAltfSmYndAMgIYKfUcPuIq6Ha2LSp09U3_eEIk6HOJkrBfYJ6jBna8DflaZgoIdif3v5hlDuKnZuneaWuO4DKwcOL8ezko7Q9KHKgBUXe8_2Kq0fwi_8mx5PhrEkT.xq4hXERBC_FYmf.O1G_W_C0PwE9OuqIkxdTRIRQR10ZdnmH5.7MMmtqG13bvOppwmixhdK.fsz9ZGpEbQSa_YwHPBY4bvw0zxmhKbFpDNqzWyvyREXW23OJGLoJTRm93oD0zUrOY.frt8xR0WjL0yPE_v.9zTpQvwyzwvKcnAPAn4POMbfAD6Xfz7S.NgQPM59IhFnA4htZ4vrTz0Hvl_RF_cGNdr2DO4OTiZOv.cAX3rhDMZAQslmDFZ3zLC4eB.fkUzTb9m_CR4ieI5Dm1fWqwAceq8.a9ot0ISoxfkiqthVjngd.StKS00i1yG87rMVYo5y5GYmZb8PtKlP7cUaYAURuFrqEDmhB3m0pLf7_12krXZxvX3vtFRanXy91uTIKvkKKAK02QMlyWt7jRuvdGxUYii8PTbkAadPYo3KRvFoFWWUylC9U6RaC0.dvkKOzz5d2PVzcvkYgsVJ0jTzFCtTHJf8OdvRrlIK_UoKfJaxdSJqXANwA_a53thElugwRZYsWwzCnqwwWuK.ASOCFzlIjMjz1MdaGPDM29hL9Y8jbD_Lvkh2S1fH0pHsADWoCv_I.RRVX9tApN61LB9acT_29811SUjFq.B0yQrtaNb8ijSFsvcIVHg.nSUA4XCsaX5G7VIUksdLdidYZY63wZf_ONtaWZKGol0av5DmEhPFcf13vQLWb0srS3.h6Dyqx9uKX1vvQMA7K.vXDoaBmIlng5AwhypKkMWvRQmydKSYNpNsWlI1ca4qRzsd7LrK84xcs8LrhuJi9tHewvdvqjsKwMF0T1iFGytXsGC_qgOML0R6YHN89MZ5GltfBWExK4JiY1VH9tV3s7Li8u.pB5jKsxi2p4M3an3PXeRLwXz9xJooWdQljlgRGmODm_igbcp6qwPrFG4TU_2R_OWJfLlIRE3Q0FZqiY1FzhPIUxk5tw.BnGIGe6bS6XZbu5b.b7QxCxa3PiPhDFGL.3Vb7cAD5r87EWyOlXUlcr27Y1scaI6HJK7PIi3pxNnW3clsdArpMtiCnd8YNWAPfHDYBpTieVonNuFv5flKJTgFkuEmVlrNswJV3JtetnjIAFJahSI.Lbmt0Fm31BJFC3Q31Y3dhn1DRVe5PHwa2RW3uRJUQ1v0TpNGrHa85P.mc7DPNV9I7AYL3FzPSdjciEhABjTZu6_7uj07juDKD0AXfpMejEHbtb0e4RI5RZFo7xwc9LFscGv8.aD09M61zcvfLGq4154sMVgtm3EAjRpOySRluqTaI_5bFB1kSbxnUN8N0vOhTk0EzqjA8GlvifZ8jhZZ4bNnKzbUu6RcEncgg177JbKtv460vcc7HBshQRG_PlxElRS8R3DLMpuOZm6zLTKNBW2f93gPXYgSOtG89N_Mc.FVOf002O8Jju3wUIJltj1oX.MngxO6WtwkGTULpXIuSYb96A.fDeIVspEi9vSF59frKN9yqVJCMMQI"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7e996cfcb0668';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\/2739541860?__cf_chl_rt_tk=.kZjajyISgnSPg896Ex3UcfR5FgCfQL7b5kp8WR_AYw-1739146607-1.0.1.1-FfgUNVpwyt1oEbTUPPV4Bx7EGz8RcaZ3g3aR6jezmcc" + 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