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-043335335212.mit-edu.top/post/5890462137

  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="360"></head><body><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-043335335212.mit-edu.top",cType: 'managed',cRay: '94b8b4406b03d698',cH: 'RJ0pUP.IpM_kMNWnnt_xhMyaSS_IAqrqzFsc2CmMgbw-1749221237-1.2.1.1-wn5Q22RtBHXl1CbL1hb9Ugg8KXlkZF8MQCgZkHMtye3TzEDKVyIVijfMq.rZFR6u',cUPMDTk: "\/post\/5890462137?__cf_chl_tk=hBb740sgHOtGvjZGVzDxfxtZkjFwkGsmOxolBVOmPM0-1749221237-1.0.1.1-t3R9NOEejiEbnoV7_r7KfBJmtXuQaY32Tk2kRD0CNbg",cFPWv: 'g',cITimeS: '1749221237',cTplC: 0,cTplV: 5,cTplB: 'cf',fa: "\/post\/5890462137?__cf_chl_f_tk=hBb740sgHOtGvjZGVzDxfxtZkjFwkGsmOxolBVOmPM0-1749221237-1.0.1.1-t3R9NOEejiEbnoV7_r7KfBJmtXuQaY32Tk2kRD0CNbg",md: "ad6OBXArKayZO6vDAeooi0NKl9_qc6ayRbIjHLcJ_NE-1749221237-1.2.1.1-g.qv5ANaCesXLF2KTEMdmUnUUAt.Y4iDsAkMPfHqYNqi8wlyGCa8nkW6LSTdVx6s16BY9dz6uVsZGILYmy09KaOmBaPjxcRAKyLrp8odEmXIow5jtLT4w3mSNFnLXh2wXTge7eOvbpOEc_ipUgO3o55ewYbf8..29sm4Q0ihBzrDeW0SNTB6nfizgt4MgBvRTTu4CCSw9.emaipM8oWoJGWpffwIHt4K5levr78_eGOhF319LCzjOZ_mWZguGxX_K9UGsAbYgZSoy9op6_VznBde73SIRW77wxiThAHFFTxSxMCbtGl_qz9c2kPlXjRwYfse2onuNwx3VG8KITMntm662iatZxk2udt_7JQVeCM5iKkBkhlItcLzQXZY0wkQlcai1dWEEEYw77qmny09sp2gTwZOsdHWxDoQLHdrZvM17FjACSuKpZBwLV3TybwHEReLOMMDFgf8MzzkJaA_T4x0vpt8HxkJWsXW0TXFrntbRWWIXHJ9qvmf421JotpHczwzhx6kwRXHJL6T2_c2mV5W8BLlYP2ccUsB.eiFzDxWwQteIKZDXptw5_IpoRLMy7N31p82YFrnfkmy28glcfoviZLBw_A6Fjx5u52rlq2.IUPrqnAO.bxUYe3uIdAEXNdthN8gBM.3gfQm7Zy93D7FK5nav091KsarVikyL3L5ZwuMuof1XYZKFvzMvR4OCA9Hp9pAwAngLa8qLGCU7htD2pO.UUKfAOHb12iBZbFpVlf5OTazjT5QmrIEkVcb2CbV4gNyLfyGt1gP8_wmBmGLH5nJ1BiejOn_RusB9_Uf03qDaVx7_anzFrB1p2PCwxA8oS_Okd721FxRlE7XDA",mdrd: "uo7WI8CckCWc_gSgrflF2EtvfjSOfl_Kpfc05UkLOG8-1749221237-1.2.1.1-SKevGR08nMnODqhUHcEiVvgou1GDmqQVHHORUuIe6qg3wdsWTw3zen0hbcCTeaqJ9JmmzMUeDGZzM3GLeGs9SndMmTfIuMwM78AsKdCjyZ43lSlRJpCGpI__80vwh6UGfWGmUrAh.WLzmfyGJxmUVUlxdqjzUmWkjCc7xTcI7MACz47kGQofYXc7h8BGlo42ZjWP6nYGX8.issX_b.CNrxtEd23AvQa8p43twbxAdhw2qftTzIBKj4zaoBvQyhkNF5fWRtMuGmPK4M6MjAJQbb48u5fXKREllLI7nOd6ekY6r7Yx6A2Yc9zpVJsrERzJWtg43kiv3UjAcAFqJ42zmvLjuiKw4u.T_83wRX_DMNgGLLXMeucZhX22r8.fZF_vcsFNzAUWDM6QeOFuDZspejaYc4p9zFyWYNGKTnZpSh0YJq_VtaKyJQvB3SxTbVc_B8Y_QTNpEa0PxXImQuv.rXMO8KTb1XSlS6p_TiUS2mWRfIREkUVPy0G_HfyMi6eapuHT7Ez5sbN8stVTPbLyS_OXcZecZBqjuEOTqkavLGxEN5IigZHM_xgjlDlrFM_kLLcaigmcKfu9qbPbyNmlXYgPuK.5QhzB4TWNu8WieY8MxYL39Rvb6DPuVGZZ0tyFsE101PeFNKrBEb.kNn8Hb0OVmuiQat8gb_6OS7lzsajrjU4SEHjEx1h33iqsPQRS6t8Y.LUUPKDGG3UHalwDRxKkJKiaBtEUozACA6C9LoS0H4DbZl4kHxG9UQRLT8KJneGG2lQ3XGtm5CRBVnO2FurtFga_NDVzTyGtYT5XxigjpBrI50JAVt2aEsww8DWG4oK4TB8G_plQ9l.02nVqJ79mOC0pGzyV_XsTYg8wXqxVOltww8F0ECiu8Mmyc96pxavbD4b0NjvYmfW1Y9GBMsr.V2OABr4oRO2XqVsn1jR0B7B4i2QFvYhkfzwdkt8wxH7PV4U2UNVH9og3cttulGLQQIB2.6zR_dxY5OWWU4TAiL8aFL84JbUU1TurOhyXPHUBLuR4cr7.mGDIccPaOFH9c1jHqHBzqRaoOPWGA7Wi8w6XE6R26V77JphFbkONe31yeOzP52iVM2lnui7_WqB1dQIpoWtg0s7VpQ9ea6LOrR5YDjMBJDQY3bsUVx3JbmNzuv8NUmg5fOEAMo.2HQsTs9Zmw63_L9s7h3ETyELqHcsjN0HDpbpdKH9.CqJbMLIj3T9OWv9xbd7JEitqiVuCMpZSdyNHYDk48yKmescwOQA.mfwYc7XbGBHxjpwyUE30hsALP4O6IRJHCGftS9yKYaATay50dhg6ERrQ2NmRFnyKL9waDPeE3jbPFtm7qyXTQExQaakfAD_A94KU0TWGbaaxrlDpNXK5zoojwN85ZMbdEm9JXFgm0g2_nObL7RYgrlMMI49gy.7BxKdGpQIfOkjvhEGxFoWi4ZLjIiBwEjWQ0Maq.1naqPoCMUvy2BBGYHz1gD8jyPqoctFMmeHb2z4BPQVDPbY3fWc0d_JI9Qi3eldr2LjucQwHKv7Xh5W3llu9WPGKVJvkn0_U_5HZl51b.wF889jL3r15UAsmMsYwbqT1TXfZvcpCzp5ZLJJ0q499VA3Sd_82sME2weUx21RjsFCksDT2_rQrTjdmN2Fqvh82DGRvfbkAQDTYw.0OGuhi0TAByCqXmlzJpasGImLCfR2JzqPGIZSmegnsD6TS0Lg7eQCn1a1EODhWNvceazKfw5wg8IZ9ljbrPY5qnM8Sbuy4AqUEUMBrtENhMcMuXTIRZv0sZRDqyVFxO77DU.sR7tr5qPLnfrUB0XUYiKfKzngnsGoOLy1imEx0IpO6c65MnAOhv6fOrNmalaF0pVI6tO.uwlA5H8yEQl6UhhGWt1vf6t9rmtzgdQb59Eea0dxh4ZUSBmt4xwxf"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=94b8b4406b03d698';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\/5890462137?__cf_chl_rt_tk=hBb740sgHOtGvjZGVzDxfxtZkjFwkGsmOxolBVOmPM0-1749221237-1.0.1.1-t3R9NOEejiEbnoV7_r7KfBJmtXuQaY32Tk2kRD0CNbg" + 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