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-421251883511.mit-edu.top/post/6394201785

  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-421251883511.mit-edu.top",cType: 'managed',cRay: '910f840ec8e80a8f',cH: 'Op4_SzZCI97kcA9cLZ..xoYM81L.6y31MEBIicUmQ5Y-1739394106-1.2.1.1-TtGQ2WiEdSRlJcVyb.JBTuPpuDQ0GM7R7AcFMpp4pgLHlh2njFiSCBreSZKdkyBL',cUPMDTk: "\/post\/6394201785?__cf_chl_tk=anAvT2OfDDbh1mMi9WaKQBUjCqmFQuavjJXmVNpBvOs-1739394106-1.0.1.1-JSpkqfHDLPlcwmy8c9v.RV6Xd6lUDGXB2lD2rnh7gLo",cFPWv: 'b',cITimeS: '1739394106',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/6394201785?__cf_chl_f_tk=anAvT2OfDDbh1mMi9WaKQBUjCqmFQuavjJXmVNpBvOs-1739394106-1.0.1.1-JSpkqfHDLPlcwmy8c9v.RV6Xd6lUDGXB2lD2rnh7gLo",md: "cA7TXT1O_lMbzSXSOd53Ak3NfivBoEiY.m3FipPDzNE-1739394106-1.2.1.1-Wbilaz95auh0WrBR_gMgmItevvvcQWX0seXgRANkeeBTPK8w0JvivALfkU1sU_MsPk960fC8fqgr6czOipWeiuHpCKT0hNaSxgcCEB4nWYvg0NhngI_oiPtmkTPVZAAb5Rzn4TwUA9vOI00cemIbUl6rUWIeaU8Vjkk38eMNsm5vO2BeP5bRu5c9NSWejVR7cWsbUX2XfJxuo2kCoscxJerVBZgCJqwQDagEfAffAaKInkC7DDZBYMevSsj1dXZcxf8l4rDIswm4SgSpqg.6QnO5P9dga_i9r6HNHKqNxGryRrlahrEMhf96OX00XMj9J4sr746CZfcUXISYLJv_vLxtPypcXMJ1NXi8cQjuNNOCtE4vBds3N19Sawp_JdiJXoiiCpRG7V8kHVfb3t30RDvDhI_0AWQXKn4ezFhgscGvAXuIs_g9s0fPLlQgCtivDGQVYRU_CHeafGi5bj8NCEVT_GlHfDGzhdnSDMcmSZNJce593MWeq9CapjTlnJJZHBTDJRtR390MOrZWa5Q_WeDRJcuZexIkCjteT1D78TNXnDfiSJvHZWFFz_4iPRcN6C6r3BRi32N7YpvAuV8zxaYk_rVeGLGeMjuea5hW0aZxV739wWBMrctndhxj0BD25UXGs7LTXotFybbh4bJRfd3RVEFnKCfLN6mvYZk6G4d1iiP.x4h2S6hWTraYGgWwDXZx8KO3YxZ8DYsnYvonBU5D2g6JQ19wjO4XxJxyyUr7KvSCzkNML6GIKcbjJOC44PT7OYMgGbE_lQGjegSEdllzt01uWzW3Gsd5fSOkVDTfFtsg5WFp4joPLy4vVSui53rTINlwl9t5rWQ2ytAooJjqFnZ_DVWb1Uh0KNgxIjEi5uWdwuuwc8KAOZqheeFTPETEqgf8vmyckFrk_gnJPFCI4.EFar3tQoOoKuzM920x2GfejrYh5UCUlObV2ISW8M1sNLPkJSN9ctCC4uHyy.s.0iu1GkqmItTA0yfo5oO0NS82XHcGXE5BwwKW7jikyIYl1fB3_.vkiqm56IMb.1gef0DviS2DXHzSKwdBHRxO6Jt4mtyWambhGKw_5S5FMFUQVDaMdaUQm2IF_rKemy4vtIOwRF3zuI9hbQsostQ5XbEpEYEdnU8sw4.fNNVbme3bdkJwf28F2VRGrlnlHQmpNyxgBRIUN3IxGvpatPSRWB7.9pdJJu.4C6n2uPp4thZ7tbYzyg7473wjOQiYLCfWt7HtUGcGvPxMIbp2HMUApQjIvyaugfMU3s2LOD9VbeJMICjGVPn7ZoPRg7YIArB._hHxcSTlMiJBiDw0eM6DaGTIPRs43cIkqKj4jUuHnd2wkqUxloVO5YH0Xl.LGRar4khisOXs6wYFz7apOiFCodW1B29kaBtcIj9byd.MA8rEX7gOJdVrEP8PWwSHKsVMBwIWXUp8Fi4k.WClb9mt.6w7DyEgL7MfTvl2nW.OsDKYuV9dT6OAO6H3b5ZgU7BsxToYFNu970kKKaomeLZCnmF8mWdK_d4p1dBRh6a0KesHPe.tyYxJnbPjYt4CQXddHApst.aPyl_LJvTmHihnYo35J9yx08ISO05EIFQetsoFrdIE3cR8TPjG8GbjjNpvodw6g.Cu_1EdYrzSqKS3WRrqnSieIJ5zP3ROVsgzgpjmqwlcmuEAVz8fzXdm9tnMYyskR0kTZwFFyS7vXlUiC9eH2A01jkW41aLmXymhJY6.6WVaB0yNT4HELB...Kx55l2Cr3WRRM.FxfHEW0kFSg7vjJYqbIEzYbZ_LhYtD.VeunQ1fSDJeX_jeYY15FIuo73GqZhRXiQT15N4amy3S75l2baduQksn8ETjkNP7.17f.EoSBobwcP.4_q54_TPj8m.ltCdgkGfgVXI13F1PryMHeRsxlWODLbCWZb5flkylmG_0M9QbNhPM_QulB5aB2T22jEVMbxk1a8L4zzlhjrfM9XTj2V67OaQmU8o6clzb92vKqY8c1QXYcS2jMYZXikwpdU9B9fhlBsXm1Ru6UZ4EJFcNpIZ_JUp1Iwd.aGmfF0q4AFw7TnP3MniGfCakYj8uQPobqLhXODROhOo.JWxKC4I.HjkHqKhmqfpngumzCUmW_pYvGKaso.xQuZ2rAyySWEs0pFTVaW09VvSFWYUIougGHCOoNKX1syhqsz8NxZvRaiEEV2EXBvlJr40eXyT5L__LLiPwDfihnOPpy5Ap6kxE.TADLH3Zyh7",mdrd: "NdKRWnI_0DAkfg6lQrGMV46Yglyfe3lJNP5jYt1aJpQ-1739394106-1.2.1.1-mJSkyOoZvYadMwOmOy1u.sgsKsA3L4O1q6LTts5sKYskv0mjKTxrTG34c79H_KLslEN1q5bKUAu45UPaaQfRmH7rAFRbQNYGTuerJJyf2ks8rPGLwOCLJh97aeumkRSzP36mJVV1UZUD7nLdzkHLNIYsxLVAie9qityd6sdDBAzVVIgm.o7JLcg5647OElIY8FOBC.P2svAyvsQb5FkctwSs.fodOvmFsPIL.ujxOCl5xrfWtZOBhKQWgfaNezSeS1VEjl3dnM7z3LhxXF7MuyoqAXDRAqBfQCYy6wBC6HxB2BlBJUomtYQ_w2horKJHtCDd8fJI0BqYN4FaUzxEZzN0NIjaFfePcSvJeZwJ9ak.V_apon.UFYjJ8sniOFTkkdvhP2YNPNltT3ip1uv1sL2In52rGW5shxfyhPnBtfipswz5t0v4H.cKG09RMkr.iaxTIhtQr5UuOBGmu8twcma.8UnkNtDw2VS8rjwGm9gAyX6leaM1A61HQqETsn1BPivEo7IKIbs1exIczbbWNU69H42bwtRHcCTHEqTRbKpYDUGW7gJwHkyljK7HsgTBul7Al193M56hjcGc13e1Nue35_72OxSu9DacRoOrXevO3bofH_kd.rCAl5kQCCltTMhu_7as200A.Ev9h0V9AmBTe4aLbBOtk_J430wopKFZf7Gcrp.pmKfzk1zZTr__.ohOvb_gouFWbtmrb3ClAlGJkkfupmdg8pobowqUq5xw9ebOd4r7T2FwNVHNR7cLQG1_jMBFZWAQXtg_q8ZU6.3mHBPrVnjGe4XRDKYDHe9isM3yaRrN7VSWbP1cZiXH1.xkoYQaV65swvPDIn4eq8WwKowc6wvMU1XZ7LUm5_Fgr1SMmi6DphMhkvvw1C4rXdzdbrFxCY7zAs3W8A8dk0x4HChc4dvLVAQ350_fKoAdR1HyW9ov5_XPnXkitsx6dqpsUThmH6S8hFhmOxvUzKEC_0HdneiEsAkHGY3BVcs8ZXtDpDGROvaYJtsncY.1xwhzA_8yIsXbV8Gge9RzWAv1J0Ti.mBjHdErmr07Y.SAl7zJNtUd7RKHc6iNkG0A5l5K1BgTx3DSLl2pu923ZPOuh2eoGrgVphnLSMizQOhZ1VUhvRfB7YlIZxAVXX5P4BDZYqschxwHzbEhrmln0HGWRxuuDeXDwDTvJCq4FaQ.7jud911H5ej_YMMJsAPr4ef64qfEC6FSlhY8nXGsi7EpBu53.QtagxvUWD_8ESaTMhnD88FQjfjEPjqOyWNDZIzRJHByN9bN59SV7or7jdFHl1LbBJyS42rp517gtmqtCRit5D9M1bO29Eh3MjVTdkoWq2asM.m_1bmFUKfnB2YzIRB5A56jkP8P7M5dDade5UfwG_Aa.mxLEMOkWDBR_y4baAdzv1M_et8dJ5UeY5FlBM3CEsFFrtNZT2SsJmgL4YGrI.jkL9QvEDwFWwvbYCsyluu7crHK6b3MfYqLtOlw6pcruqfqNwNUmehQw9xJspj5qopAdoYJrUkevq4xl4STETocLYqSxZoWXiP49yYAKVbxdoCLnJVBl.oTWpsI.NMdOE9KCFxE4yKCsoGrCTpkTYdwnY8FuOAf7lcr3VWu.9H17sSpVlEGAX3lUvsrU0w160nGyhS_OFq08FPAYV7ijN8ox4uMBa.T3XzLBuA3xD9i.ieyMX4H4yPkKDE7T5q.thlpJa7NBDl6cYsq85lB83DTnIDSUDGZ4YjR_V6tRtw_Ruq_WfCiewKrxHHWp3JHHpdJPmBIkmsx6jAVCaGosPgEV6jWRyZLn4_yS.3ACHlNLSYmsB_UmXtfOi8"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=910f840ec8e80a8f';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\/6394201785?__cf_chl_rt_tk=anAvT2OfDDbh1mMi9WaKQBUjCqmFQuavjJXmVNpBvOs-1739394106-1.0.1.1-JSpkqfHDLPlcwmy8c9v.RV6Xd6lUDGXB2lD2rnh7gLo" + 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