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-187990005195.mit-edu.top/post/1480269753

  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-187990005195.mit-edu.top",cType: 'managed',cRay: '9107b7e68adf6ffe',cH: 'HmL0aXy07FML4Zhs7IN01CD5pca5dFFV2QEVNYLT5HA-1739312344-1.2.1.1-SGWzi8oxjJIBw_6r3y2qJewvX0a58kGIR1ELOfiBStZM8d6dSxMdVlB4EoRB.9zi',cUPMDTk: "\/post\/1480269753?__cf_chl_tk=lH2v1UVJRtyrmMnSQ2Vq718v8efWo9.wucfZDyuUTYg-1739312344-1.0.1.1-Ol9WrPpq.6VouFifL9ZTF0BRJ0yYdFuOSStqeBWtCqM",cFPWv: 'g',cITimeS: '1739312344',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1480269753?__cf_chl_f_tk=lH2v1UVJRtyrmMnSQ2Vq718v8efWo9.wucfZDyuUTYg-1739312344-1.0.1.1-Ol9WrPpq.6VouFifL9ZTF0BRJ0yYdFuOSStqeBWtCqM",md: "Af6sKiowE.lTPHoPHLmnPDpsxIhs3vRzXjxJZN2YZu4-1739312344-1.2.1.1-Sa39nI0wNhwa_tZfsdNFMRrRqm2wDCGcmRWKR0K4KiEgh8aFTXRaRc_BQ9fJgPyef7OJyI0__ksErL7V0hVFJhCH06K1W5Sm.DJCv_tJBzPZpU4imjHQmU.bgGwMlgi7Pok7bkc3xZhxqcu2ZBCSg7bwwejd_TbRR.dRGgqfYZy__RWmjYxoQg6ufzUroPpulf_DgKw_RWFr.29PyMb1ZWdfprQwevxFsUAUDTKjkMNgMdVPkemJJThUsIRLmq1GfnfBaPnsSmnUaPTOgWWTo67QCktCzdyGxk28jEblOV4QbzcIvmNwUj.OXax19cfqxMYwkye94Z2dV31lrRog4pXCEAyb0CYP4u4Z51t79VygbIUbO1HIIL1Sqwf.goC8MF6JnuwfxMgsAywT9fVF8z3oigkeATxtB5AuFq919Nv2gayau.URDUHl5RnQpaLwY9__.ZmjxqUr7J9874lP3sMfQvauGn7kbLaY25d16fvopELquD2d8paE3JO8j4d2r6aUzVyqZeOHbKT4SQ3Q.YmaYp5.5nvwYw.7kjhVs8Zu38AtEotKP1Fimd_3N9dOmat6nFRHKWlM1z6ubSbsyLA6RJnTpbXNDl34dLRrf3Rnf4yjbJJwxftsAuHgG7NjgAl6RXEDONyUhZaJeHIoc5hKWvwHUy3PINKSUOzEiezqHBgd54aNJ8leTJYazjB.bZY6mPKowpb74dbXBSLLgFlGSb3nAI5Z0cjy.VYF7QNI0Mrany9CeAH1Jmn.zM2I_HSGxMuZkuookw48s7yGy8xuqsAQqiwq2mZdTXNtG3JWSP4sjhIyZjGSYq8r1.Nf8bxQ8ojHNbcg0UA6rHivljzgkrpWEwoNxHfwm0xh8LsnuhJ7XcRpVJrH4iubxi40ddly54xDOUcm4v9jIfa6VnAocmlTmwl13XBpmQga4zDYUDUtei5cG4JtdOD30Cl4ZhDXBVEavBfHqzmB5dYuQ2n0ZzhY4F6P25U1Yf2HDFVRTK8fnUKXGBRDvAD1tykNFBhaCLGtG4WuBNHZYuuf91WK4iIE4fcPvgA1HcM7wSeSOiiGwcRUSY5I7xgfHgQw4UT5zgK_8CIZJEuJ2.I2cVjoc.ZXV0WG6FYjVyDFvtKdR9oybUcmk41QD37t0fPvrfnsr_0AT1DMNyTK2bMZzK55tk7uB9QYgS2P.oOQrnDwZTUjkbLjusaoH4AfJe4hgtJr4iX3gOPlRzYqoNB9fj5pdYpNCfexDUAPjzdGJUxTqhMUXyEJMONbu.o7DCwLFNZaHXlM4AJB6V6fKXNoy7n7Fj1cXT1RzrS_sNa3wsj.a2BxBReZKALh19kkoO.jkPhPq0kXxuiuyTVa1UD2jerV28zRHSxEDRYL.K8L4XcCSnnBA_KWJQr_iMuOIpuvHejo8SJZoWdZrwitruKRu_316Ex1KyjDSM14uc_lfG2GYwCSxQeZV_U0ye613eChszz3Eud8jXV0Oo8K7lbmHNipuC.cMwOtLoP0e1QWPd7zJ66r6DPLnJNZPFPZtO8sxYn9AMxjFcPZMIqMCJLvma2eEsb0MnozdiQziGNGVA7EUdHN8WjfFPj8WPpBu0tk1SciL1wh50F2c5j1X_PPRt9MqAYOCiTY2ZnH.BLvMORQCAKnkFIB9A4E7jx_.KJlnasomBmgCTl8PKyoe1ANJ.FEs.yLbVMbpCJgoIa1UG5fgT3d1gzRq3qKLT6.AgNfkJRDCnETPAe.HjqcG72TdPSdjgG7LycZw1PKQW5GShlDSUtijgGxW_9ubmqGWAkKVjlnF__Xzxaz8aaeS01KYYbTV6vDeT0rV9zXYkb_HWjKzaqKYaG37pBPJysGj2hjC2cCpteikLGlKLsZsIEKX9WxT8CUJS0zYgMWgudTSA7La.yaMIcSfvvi6QV8YglXV9BKwFPpv5bsCshp225KkDTU2.6UoZiexwIxhy8K0zOAc4nuRj6._Sw8AK4OiBR_yhnELiaHVoX4pg.zFBWBwXnS_L_kYEXJv52giMvRuSe6sEDOOJV53zDfwpFLzqMrEzOE5bgTSH4v7ku8EWKvPl5XwyZNrMPCKkb3rLLvcem.LKPQZ7tOBnSQeKpFRcIbqiGH5WYi3eLpD1K_VlRShAVR3ur.q8TOF4XjZDRexstsa_RrupWdNICFLAdcNLaDDGR_ddWCecxNxwWgaDvT6f_E0eTdR_goAvWGkf5FoOWSz188OFJkLMJXRb_k5P_b",mdrd: "Ifj36yhOV3NHp9z265Kdu03N942mjumlDpTQwFLdBHs-1739312344-1.2.1.1-PdUev7qVr0.obxkdLQufG0Hp4mgCd9V1SJd1iwtTD0gELFfRqp.95DevXNOT4TwE0uOqZmjxAoyP6qbqld9fKIlyPtykzNXF.Sz4qaNuP.V1hUUCDF4gOANJFh5iPY7JKOjmhvLLIqo1_cJXBM2hDsTiDsT2QyYT8ZdQkOb3gqSwqPnD_FLGrJsWPRERq6wxjb0IdCFjXJhCqJ2VrL2qxuYetVIFNaWBX3XiLedxN8toZpQqBOxJVgWkIpPI5yv8PU8RQJvqutZlthZCO.tIs4WBkwlmREmRNGU5ZiP2eE8DMUpQMKGBoP9MPI6UsoyKJLWtzPo83DnSD8TynYRp0TuCN9sYYkoXMVWW6Ncg1QPlR7quQgTmKMubur6jtHWL.iu66Nsfi9C8QhuP4vxRCt0jWBAnU7ibuUt3AXAFdh8UysQNWwg5BweP213387vL__7wzLy1W73jEKC74RYnn6Sr3mwf5TIqpkx6plWOUyOeaEMaYCV7Y1l7Y0sdLP_caCaDbyt.z5OSF4JtHLUeGIhiQegID_L1BpJ3MyYovzXjGbQes7F8NTxHT925lfOT42IDlgUYv5iBYfuK49jx1y384.du_J58Yu9RNRB6qYvfX2Dd.73oUEQ1AQMH2VtsmR0U40uUvykB7U8ke2qTTp66FHiS3XUpi_M9GmfZtPuacPiCPXqAusvHX9vicvrVG0Z43UL_MWadwltig4fbXnQ9DOZYJvMs.mcv9RnEEEgyGsUZfAUkk_okf5xPTX07P_tqqJ_XMMyynkwtTmeUAfWgwToerjzz20IH_7JejIo6bD_6tKg5bWFONTnxO5bInqGW_zODGzUDrrVUhauwd8nysFY_vH_QILvcypSilIcgt8N.iesLLlK5nHGgZVIy0grjii3Kokbg2bn7o9aQoB4DVDjS08VaMu2qX_G3NiPSbCeNx3hbziVV6Ltf5d_Fq5f8Aff6g9SL7Ph288HCl9p.dF17Zv1OyDZhi9Zu1Tck2ZIgLUueuXUJ5O6NGvQVlj4xjeljNv_bwu2IwqTAAeaUbVw67WyTY_ibln3ZbfE2gtrbQeNAOqPW_LwUAY.RGvpLag1mxcge6i.TDjacoN9MMgFN2E_19qg1hChCobKUzHzVJWgPxbnB4MKrsCZxsVbjNYI6X03DkW.INyZtFrjXl4Ouup3xsuoY8QwL14S2N3nCNgG.PniGP.PftrbfB_SjVYbhj9HJTNcPHSrwOwKHKgjjltA21CRzV_JApXmZx3pdQVqa4Yx3qbpw3hlMtav24T0Y1KimanO.mqxeG8jQjv9YOOgjoeZAZmVWGie.dfqK1zi1O3dsFoSDmOWviShp0V.9bVGg_9zB.0osXPAZdep5f9eNEHj5DieC8XO7.A5SlTM8uwnN2aVBcjONH6Qi8zZMOh.2DwAErc.Gv4VdUDa2QjyechoimBnv49.J71n4FTlH92m5oHPfes5_Mc7tBFF0OPUAj21xdikh4AybYHoeNHF2cr2JeBaa8SR.A9N.STx_yPk_iUWCEmn8Ed1K0FdjCeR.9Z.oD7K_CF8VGYx3p07SkuHtuTLRMQed72lMRTgOCaMhfCRmzoDCDJkJnPKSRgE3CAWtowoYZHoKpf7_GJwD8LcRgla5xpCZ.kySeiawXhH32GOUk.Bor3CrO_lh47L1lUh8lKomZnx5jYifLgSjNqPKaph2yPvAxt23rg6m.Ffbuexl_t0.HbL55JK.7WEPmsgJ.EiMclpOQaCgIk2LDqgx4UsHHM0aytSnu0Y7QpNntAi78Oiz4PoEIdqpum9UFzCX7HeNUQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9107b7e68adf6ffe';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\/1480269753?__cf_chl_rt_tk=lH2v1UVJRtyrmMnSQ2Vq718v8efWo9.wucfZDyuUTYg-1739312344-1.0.1.1-Ol9WrPpq.6VouFifL9ZTF0BRJ0yYdFuOSStqeBWtCqM" + 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