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-affsx5j3h.mit-edu.top/post/5620193748

  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,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMiIgaGVpZ2h0PSIzMiIgZmlsbD0ibm9uZSI+PHBhdGggZmlsbD0iI0IyMEYwMyIgZD0iTTE2IDNhMTMgMTMgMCAxIDAgMTMgMTNBMTMuMDE1IDEzLjAxNSAwIDAgMCAxNiAzbTAgMjRhMTEgMTEgMCAxIDEgMTEtMTEgMTEuMDEgMTEuMDEgMCAwIDEtMTEgMTEiLz48cGF0aCBmaWxsPSIjQjIwRjAzIiBkPSJNMTcuMDM4IDE4LjYxNUgxNC44N0wxNC41NjMgOS41aDIuNzgzem0tMS4wODQgMS40MjdxLjY2IDAgMS4wNTcuMzg4LjQwNy4zODkuNDA3Ljk5NCAwIC41OTYtLjQwNy45ODQtLjM5Ny4zOS0xLjA1Ny4zODktLjY1IDAtMS4wNTYtLjM4OS0uMzk4LS4zODktLjM5OC0uOTg0IDAtLjU5Ny4zOTgtLjk4NS40MDYtLjM5NyAxLjA1Ni0uMzk3Ii8+PC9zdmc+);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-affsx5j3h.mit-edu.top",cType: 'managed',cRay: '90fcdf61eb2bd68f',cH: '9MdB5UyB_32oGJNX4YMHtz68sIj0dg7OcIZfqlTT_ds-1739198617-1.2.1.1-qnNPSx.1tKOnQAfGyvFgOZzrd_CQpX1RBuBD6ksEDSH_qNfORkGifBmNJr3Dgyiz',cUPMDTk: "\/post\/5620193748?__cf_chl_tk=EfiiDOJSgg0myhqroWd7ud.BtFN.j6C35h.jj26r0Dk-1739198617-1.0.1.1-3XmkC6u6mNvrUW4bxFZU0oXBTsNbDQD9uAMYBSdu6j0",cFPWv: 'g',cITimeS: '1739198617',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5620193748?__cf_chl_f_tk=EfiiDOJSgg0myhqroWd7ud.BtFN.j6C35h.jj26r0Dk-1739198617-1.0.1.1-3XmkC6u6mNvrUW4bxFZU0oXBTsNbDQD9uAMYBSdu6j0",md: "ae3h0nG91nk5ga.XyMjgOsWI9Qae3tpImWCgPLaZ.P4-1739198617-1.2.1.1-i.8LyFaLKIYBH5Lc1HYnNOjK2vi6ZzUGsR6Qwqn1RXsi5Tgb_9_kCFXRmFkgm9juqd8rbMbsmuDs.fWoG_dkuOXfGD6XMoLxkxK0bKxxxgP23tRb81PYSSjCSvLFIN3Od2Oyr21A_H8rACXw3isQ7t8aRwHe1ed6OZQQhLskwGABmdWnu_p62E4lgE4FSwk1WL3jj09ypa928EjQf9zIA4pI6fbd41HAhFh8QBgYT3tKFTsBj3ed_TBghtQ3r5AFX9e_J3k3g6dYlfNt3nrmF4uzG6F4t0tuAfo1I4uxA.jzAkt10yfz413NaEjFQgdjjsHNyXkLyfmPSYpHSeGHz8hxYm.MHuJk3ROc._.x2p3Fl3fvsMaenEM9Fa1zpN0QZSRpvH3uxZ21MXg9wCTZrkUrg3P4x9wb3MCpztAYT3nszBz0uKzVlKMwLLcfPeUIw.j4Gpbkc31ZtEPlF6nNCBUHcR65KHpwRToWmEsQ4TO8AoD1SdBGnox3G27TCFWd5ZRXZp1xPeJXxJOmD0Z_4MgZZDOoL2XswlqqhHmN4G8bW1V5IuIB9cptwVPtfMq9uuPn2LehOyE5pt6nxIl0UnlO8Xjsa4iIUABzjAaq97uIfX631gq1E2CndsMCmFMQOYaOQEhYlM9rNeWe8i6Y6A5.TooQmdzuuZh2ZpnIKsxnQQe95jD_.IskEbJWFQLSFlYiVYrg5wyfSnySYla3xpIXvGKqQycDrthCRMXTdobXTHpB5mgVBVyIpXF3BTCgLrgv7gcR2.o4QtydM5ZZIwYuotOvAFZKu.qOOLrJ8s_hR9_V04hWyv8s6Xu_r.hEjcbaujbj6LLIJaKifIEAtUbtmjMen8CLtQkkYcH1k_xaiNDfJ7LG.k_pdX3g9_kOake0TvOknxZp_M7U5Zy20Tsdag7kw8ZDJqEPAucR17tjuMIDUlYk.CYKM0Ul74rFjnSParwB.s3ZlYUWjidcr1Mw6W9pNDOFksfVEvzwYPM9yu1jHDlRkcAJ3jF2QgzW6.d_9TSPT5UiKVC6zFBYFjcd2Kga4DVyLD5HkJakgozCBSuyr288NFhUEc4OYENzF2HIAqrbcnxMyw6zw_MHXfPlFA.Arz7VQn7Axjp7VqFbSnDlNRoKcq6Zi5ACivkazj1g1UrhisL4f4NBZYN9eL6hcAPNiXNXxvZAkb4l6ZrTeB92b8Pgs4A.5U417e1InrEj.FgI0kuVxC7HqSrWqvw8nYAfHAnyHtPUFmXvo7IoR3VimO4qIAHk2sxbxVXexGfuyU_qW_CsMKku.op6PgcPEia1ONfvRLiBVswb9_.M0k90TTIzzRgGZJbGfZcRj97ROmCe7N3E4RNXf0vLjRkb7rbQmaEHWK6mgAWIds3I.R3Lz02YpngpbeoS0ER6T35ZKeXeBRiHrtUrEvA.6zuFtjRE3ljcJNgYQMz7696hIo6VInBnZSuftTN076E6PWfql5VwPT36SAUKQqWZXBuyVVGXo4sLwJaaZ4c7LSSlQrPB4Camp4n43GZttmoKMYKyYrf0._ic4uTmIdSeQQ6W1I9MYos_b_SFlgZ9gJN9xiypnNasxvnf.bn.MzgqD7_79RhViK3oCMhkL_.Nrho33OshdBVPO4BFe87JebVe0rD27o7zvWJDUw8zUfQCp5XtK22wA5_0qO9SUnA0onv9jlIIDYY0TMWZcBoQEH4nE_9v5.dQt900ytijdy_Wvplp.VFfjuONtYBhlgm2CcxRJ1kyszL5LijYZLPAIk9MJMuYFHLAkd.nmSUBYzsBEqDHVmV2Y_5wE3DHs7MlNrZRdjsflHZsiYkrVqHcAiPO5XBZ7DQh3MphY.kGZooFTAaVry4nr4BNoVmqFOp1.IE77MRIqMZBSG2f8asx46i2pFi..0oe8uqBtFJ6Td0Bw4_EMlfICF9QQvX9HF.SxyZPlVH.Fd59c68rANLMSLennh7.SZM6n3Upd9kzxGqtgB6qoX0thR2GZ_Ie2mUGjY6R79nRTWRzGs83OSMTvU.cSmRWzpG2MKec9NEgAqywWWjXHHZURWe07Oc0830KYh89kaXVEHdNOX60L3CT9SO6cvrCOS1Vop9iE0iwHzqngcTCayXPqgtfAeDjwkQhulEGF82mjaSud1IXmUUBtyKeDdas4D6kE6c1yneIIXQFkvwXEdFl9hKx2qo5lCo43a_T8KPpUszAxB57pUy4tR8GYQRfVJyvK0hFGOYv9UGK",mdrd: "Ae5Wu8JiltFpAYgOYfmyY007CC_B4ibwAAcGSsIZE3A-1739198617-1.2.1.1-q6dA7SteHkeXbF0_Ffb3fSuq3IYCDRTPaFjWQBqlxa_vafZXvQYTZgflF0KHj1R6r2_QbbRuFIm7RiOuKZQ2o0Ar9z_Za1RwogXiH3_p18piWW3iwwITK_9rwUFKfJGd6BFNFwKs6df49dj3.MLixoNPeY2.LYt62cPNxU26Q4_x9M6oiYn5jr0rDD8uUnApVBXGnOGbnUGus8YNktn.qaxfIjxyvs2BRbbgYanTdZKPCgDhvdRwPVG6XFtwGSswd3rNIin6e2fTjC1EMpaE7z1Kc2O7cnRHCqBYID0b8THpnqQd21A4AbhEOu3OnuyP9Offf67ZWpyz3YodIxbCd7gkzWr0BDkEFk3uxc0EHgYZ0uiUIBj3KbhKn2ro_OD2MNTBgP9Eu3eJRjeiXZoQgHkqDJyErMENDu7gx22pNEYjjlmMHWfSJD9EgxhmJvZo4NCIYVnpkGpBrfkqQ5e_iu3zl1jOqtoN0fhMkY8lutZJiSWiqNqad_6yE2.h9r2JYzJeCpuEftPjnVW5XovYDe2tAxCW2xzU0e_5V8tXZ2ETVS7zGCvfwm2zFIL4NHD_zCTjDakXESABtmILCITyLAPCrud0CDjT_YQtBZSUJoJpuHS5UFg83jWXUS8ndsyhqjuQhrqSw8N_yWAvCh53cs9hfF3Yp5IaLa.grVvsbJPMbaH7wAvwrem_jBG_PlAcDC9GoNeg6FFcsfhr5fwQnRtcMIzxQluu.crlNEq8X_kMAeWpTozLAZor5mdjAQJYHAroYp94IkUMfSPTyosEQLg5ZnYKzuHKmmTYZGcbvj9Vy1pYtxA93pMW451bsnakbe7gs2t7_.TLVkgqrRoI3BQz2bIrJvS7xHX39uEabA3C9RAWCtqBnXmJ.6QCw5A62PgdacUfYI7WUo5s7s3vukLQFvbOl5hW3n3emgVkkesoJYl3MB4q_yTIxcUEFe_o9T2_Z2.onXav1f.8MW2SgNUwsI.WQNWjOv1.Z2f9ryaz.UzegFJtKy.rXFkLq6NeOen4fTl8wupqahuh3lMdgLOtHt0EQmv1kVr7lgCIfx6zOXd7rHPCla3HXC0iDj22tMWyigvm0L7u_np1jr188VNZUP8hL2h5EuoFkrxy5WHK4KtBgXapJXP26fJOScMCZN_JFlpMhCD7nnu7UNHqN7S_3nElsAjPn4qAONn.fv8SKTFBpUPAXDDHTBjA0zPFnoORDTsgdASTg0zQcdckfAOrjNyVYkfldVKpNHxAZ2CxH.cptxmNvZpRbvZMhccpnGCbQ8MI1KAhc4w07wnMX2pXlxL4XZkleeOywelEl7dl_VgZCwzwXbpZEO_wrIjQVrTUR5qUxz3Eszuv.NxpFQCaY9nZh10eoZ07iA5g5RxMLptYK7izGbx8lonzeEz9AutKJ3DooFGPoe0EykGqXh.kW3O7RtNTAkCpg51Yp7vaD7v7a8poSOddOkMs0WHhBS86y_YfIio.E4lmog5b2YMTfj5uRyWXpxxAmqFZHemBNs1jQVysKy8MVro3Pd43ZW3K1JQA2KzdGwpIIZvqY1msJ6SEkJTKY7lZ36zOG3F2obwfCKyeU9gIuXmjw3qq5o3eRqwb2Ir2HMZITEt5u4RS6UazO6izQrZFIWDXQC9nWRrBs5zArW.aTMWMs.cHP6Q06MW4o.zikFtzdgcVAlsbd6zvbVCR9qEwHfZWRHrta1WzfOUf52xvAdZE3wUB2tVpB5c3VSTK27uJgh9zMZ2jma9aF5Wv_ZcLsXLr82_Ck0gTWT6pGbgngxqgfAkWmwa2N6hgMWcj91vaYBIGjA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fcdf61eb2bd68f';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\/5620193748?__cf_chl_rt_tk=EfiiDOJSgg0myhqroWd7ud.BtFN.j6C35h.jj26r0Dk-1739198617-1.0.1.1-3XmkC6u6mNvrUW4bxFZU0oXBTsNbDQD9uAMYBSdu6j0" + 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