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-affxfm3vu.mit-edu.top/post/1235986074

  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-affxfm3vu.mit-edu.top",cType: 'managed',cRay: '90f7b4602c7b81e1',cH: 'UO3wfns1JYadnfksWYCCDvnOuQtvfbnpoFdBqesbvG4-1739144427-1.2.1.1-q4.W17uv6I4D9tvCgMP8B81oSEZztaqhNRBs9j1iUlpQFYgczwasBfGFSPnIOM8L',cUPMDTk: "\/post\/1235986074?__cf_chl_tk=X5CJY12CsspbDt5BrYHB9lbAdRK2KkIiz3E9cfs5u8k-1739144427-1.0.1.1-7wBeZ4Xz6V39m1JgM6cdsnD9nK8raDOylPOyZxONmX0",cFPWv: 'g',cITimeS: '1739144427',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1235986074?__cf_chl_f_tk=X5CJY12CsspbDt5BrYHB9lbAdRK2KkIiz3E9cfs5u8k-1739144427-1.0.1.1-7wBeZ4Xz6V39m1JgM6cdsnD9nK8raDOylPOyZxONmX0",md: "XRDTHRDIDD68I00Kn3O4IXrCEVEjbw9FWIkweHC8o_Y-1739144427-1.2.1.1-adS7qS6Nh8ItlhPIm2vVFEV5JnHQC6FduY8F516fqsjb7f0HfYlPVJwG6gjbbZojtFfNMitwO5Xfmeax1O4CQX2xx_04h51bJaQiZg_wKSRfZ5mrKh.u7rnrWknDqfHAV0S45.C0a5O_Kp8X6D_y4F.quOt3xi01SrXHRdOF3zcto9BXDampZDoJ1fEoV._wjzhlM4UjGXREXK1bHkzFkiIvjFIgCvaF4prQ9vceb0QPqEwkrgBUPfBrCLVfF5sy4S_2hqEjbDXlNWf3lZHP3ADQYkXJ9pkOG0oXLLvx48.5IsbvzYpmlaNSyg2TNFySJTkAhmMCZfaAwtmY12PUz8K..vJYSYQjdCqoLhde4UifOF0v5nJCQzF9u_ZXftJuJ6BOD7Q27yHBDo1qu7ANCLtgeHtCXzy_faPglLZtaKwZ2l5x6vfR8ZGTAQxu1DJIIoAh0M8I6JnVFvwRCHJuDvVxMyY26EOqnqiFppDkavggXW7ku_XobOyf1OQffHv.b1W9Hchc8bwPkjuHjUNE1d4XfzumiAAwO5U6aIysq80JtQwlCH5evnZzGwS.63pI0FF1tvvY9J6zY79rqcfDbGScOStywx4wKMsvwjo4CCdqFVwcOAjDHQRoui3aFHpeKYqez.lNv4TOyiD00LwuAtkcMo8bbv5K0LB7x5oO0zZRTryOIcY_VrPEVHv1vDGG5PQEoRvNgSx0g5J2YYI78dgMCGBKFLPfp_dF6ifFqQffA0B2Mc3FUfXLaP9qFPxtBAdoL6yauFkUyxYIr56vwAvN.4CKQx_XHTn3cvZx3xYew5Xhw6kxJZgtHnv1n73En0s5ZBB0OL7TZKYnpMWCYJEowyg9zgcT_8WKh2HY9ni6I.zw4S5XeF76Mzo6zCbTLaumtVrXWwZHLIvlrdbqCwoF25LgntavCAEgnwhDRRB9M4wsQsTwhqicnSCXKW4JbLDTAh8vACccFNv5h7B30e_YPbcGL2iSG5V2m2qNJd1pcClOyW6lRpUAg84GOVnfPsdAtGT.DvEYpgX9rmN2ji2k5LNJpZBHOIGW3vgJogCAFKP6h7aiEMFZgstHqPioVmftDWGgOGMc166wTQsW7pF.P609eVHBYnjgrvOawd8OhL4NtpuYRlxNvqcRMeFebPk4JiZaC31W0TOICLguvD9cMgSPYb7o18LngT4n_ZBb4gIdCUL1ut4ieFcMZo1bbanTpW8fLQwwjYgqkZfnZVK4jW1ErmWDUQAu8URZtSW_NuT7_RmnbZ3B7c6xCpw82nT0oAxDgFUUgTrn7zDyZVB3jjVQfoYg83B3ukT0OSxIpMg72Cs_RUp06jHOVK6T_8juXDmbSiUCplvEl89p0ZbdnYqUV..VK41hzxEfj50YJAO7ErTzmb87mDKTZFC8hlIhIpdDkCIePIW0PE4CYsp.zf8a8GyiNy5RS471iUaXtvZiSNKQZfKtJVF7_NRkHOHR2BPVzHKWmIe8myEX83pS_iL5oJdQ4AF1StejJqRSOFSEnh_7oz9Rf5M.9SpzzZ8Qet0052hfPFmSptz59N_weHQz4taufxxt9GxpSk35XyN1k6NuOryS2dgbY03xmgiBp.snILN8DcHO6iRrUjdzhjNFmiftlNSo1JUU9kW3F_zrU9GbP3uzm8lz0yt_.Gm5qJtMoYaI3M0FzRCFr5fNwlyalYHhmiD6i89U17AfPIZGbP3994RTmwVR3OMh.rq512MESezwextceIFzIysGKqHJsOxN3Tez4b8gU21_4DDSDN77a_NnuBL4TK_uhJ9HetnQ.T3UM_.XtUBLVOxQOGQHBIEZrnlyK_2dnkJlMSuVlDqNXwRZIBjmffQfmLARXNxIRQdyTe3V_xP4ugAugyh38Dm_Q.SXOmYhjf8Pdf.FaLYGUBjlrJA8g1WXDSxYs_J9tLzpd5dE4nzshdjZpvDQ0Y6flddsP15O._rSWAqpt6EEYtWrRz0R4RtZUEkASJLQfXP.sLI_xNlw2SO2nIGuFL7.ogMvHpncUEZR_KyBokf4W5U4BfK9E7OAE5umPYCI72BClOBSr0Fc8Fnok9rvUJFPBvjgYP8PcgJ0L7xxMoFYTUGedWveXiI2WidNNJ1e83wiy478gAPQO0nEMAIek3tNSCCXP0uag5DNpxAZGZQhYi5tyK06.n0Or1y54oqvZXcceE9nFaf3VQeS6BIvXjeBzFdbPQBQApWmPnKy0jji7ZdaIEGAXBlQ",mdrd: "cbYtXYVBz88Iqm4ZjM6lmV4RtWatoipzTtJHUZcviDQ-1739144427-1.2.1.1-zWp6JvTiuh0WxH6oxNlfy3kjEPUpIQCEpHiLJznG7QKWX6L.uKUtWx88UnXKhO1tATG7M0EqeCJpSOB9NqDmujjRC4zo9tJFyuNrlmhl.5fdbkjImz04X7ZfANAAWYw9JGMj6Dxdj.3xnwwdk4340QDE.n8wjpH8SpoX7u7HxxeZ5lH.7Z84AzWu.Egf.2O.JIObYxe4fR14d44owORkV0C0vIXUsheFX72rwn0QungfRuCxnyenCc3HZn8LRPZvuVGuCGAVs_pwSlWODeMTMtP_3yIIl03Ga9XXPSfsdPQjS5GUpZeLJVoyyvl5CaKiSsiZjzdWKBk5lBAqTA3OQWITepY.cKiC0cIeJmnzhpAX3WK53d6b4w6VAfh_7SrXBp_AH4RiSPOpUEspzvgmutohaXCqJ.4ea4dZcGvnLOhwvlZnmtrQdyyoZ94b7JDvwqm_0qfgmpWBP5jjFd1nVe_xlgrhmyfXYoNoAbEtYlPmdeKVEU1i.7mjdrym6tXlvPxOenzCfKwsud0Z1BBdI2RlJ1UVkcpnM9_SGKZUypGB3eXF76wf_vIPcPs0MOyC1nUNtlPBkvETWNLiGPmnwD52YYuY43YG36RWjN4GrnxaEoffZi9MQ3495OJohKUXIEb2OAEnZqfAJHJUQlh.ERO..7oEFqV2aKhijT8wK43ONXl4gKTqPT.x151UmqlFibLgDaMcDvw64Xys_oQAU9RrmCYSpCjD3d5w6KQFAh_iONIi4HR.OK3x3BeTfwgxQ60I7rSC5NigLelmidYWGm2sSmX600YZDAZ.xk_Y7mxpg1r0pESTymM4etGcDhivb3dj8vfE_Ut7MQ4E1MWm_aL0.zNIW9ICevNo21gnBV4CzP8Uri1V_KDdfrvMWbugOQP5WQ63lpV1W6Gq0OrlRtaTXG6QW_G0naBYS9Yd_hwDP0UTQIwnUC9Uv6E8xI4buLAtx0B08i7erXuPn7AnNJjYbU5pVY25gt_.Hm3Q47AyyGxLrJW.FEf5jLagZ6q84VP7o46fbSZmCg.a0vHQe4S_6yEU7EXSNR3elaoNUOI_uvn8UHvGbT952Qt3SrzBg0P6jOwlYr4cc80XDiG808Ec4cv_6uCDGKEMc000HUMhnTo6XEeMmSWPDHJcpg4gmU6qAbx70z39hUgRYQyfhaGZCBBelUmUzk0l.K1KK7iEPxDEZBTdYM8xwn.LXlu36p8NXox5nbFOMgNiXG1xyH6haEmrJbUVw_MeJdMvQiDMT3RWVt5UCtEQVg3uW9WJpiub3RAeU8WOeiVN6JN.qoAZb2hyMQEbmjpKAsiRtS4DFMOfwO8YLYdE77QrJMlkaVr31FAp14rM4rMC_iY1pmdIFsmmZGI18QKKg_Py5YJ1qgXXX7LgDnn.LuOmhviPkJGeVGUslO5WGZJuukDncrecbpc4RkFMVbyWCzNican.V9TGrzZ2u6vbwVN4M_.MZvgpZMnqq6xkQObayfAfihZZCg5qWIDbFaC26wGigUTltz8ob9eZBOCuwSd_6xTDpShk1VvoLO1W6vP6UUQDlSCEMPEh3_VF6TDzSO2tYuXtHDcEpgHfHL7NwJmwVl2OkBtlDwKblAtMhVB2lzAM3.bwQWogx5O_h2v_QodMTf5aAafQbGIV6gKrBLVPUkUhVKD._nO_nhx56csi7Cr45TSQRJmTDmk2LvrAwwgK4QLK4HSsHlOcZKlKxh0jmvKKQpBEc3FIU3Tij7LI0EfG_rwvCJOhfur1VB5CWjKXMHasuqeSKG7R9u_3Nf1wOFfJFcQP3N9M0i0Z_JuxOgvvSURWe86oHByHlpG7ZUKC3Rc"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7b4602c7b81e1';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\/1235986074?__cf_chl_rt_tk=X5CJY12CsspbDt5BrYHB9lbAdRK2KkIiz3E9cfs5u8k-1739144427-1.0.1.1-7wBeZ4Xz6V39m1JgM6cdsnD9nK8raDOylPOyZxONmX0" + 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