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-286379262012.mit-edu.top/post/1235490768

  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-286379262012.mit-edu.top",cType: 'managed',cRay: '90f36cb7994dd6c3',cH: 'iEZWqHUvjFQI2V9x31rPq4JOcIqhzdIvRPTOahQTo6A-1739099549-1.2.1.1-avzKD6sHVcZ91JNqgp0vqinMG4CU9w3coFXQA86ez5cPSQe7UptPVgZrXP1VJzQT',cUPMDTk: "\/post\/1235490768?__cf_chl_tk=H0GccDuIAeyTo6wn9YQaqCYFd5rv0T_JK3aUPCNYJAQ-1739099549-1.0.1.1-Op6mgCS7hHDeGAeukxcUUiWROtLKEtXkUj1sB10sH9E",cFPWv: 'g',cITimeS: '1739099549',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1235490768?__cf_chl_f_tk=H0GccDuIAeyTo6wn9YQaqCYFd5rv0T_JK3aUPCNYJAQ-1739099549-1.0.1.1-Op6mgCS7hHDeGAeukxcUUiWROtLKEtXkUj1sB10sH9E",md: "QeT6Mx6JzVzDm1IweNulMRqk2tSbPvqJDcb1LTMlPmg-1739099549-1.2.1.1-D.dqkv6SBqgNVj9hqUA8osTxJxJjxj8pxqEHSNz6p9hp79F5iG5qn49lCwBByBxHpzV4tEDr2bqzF2oBpEH8rQ9GRaU5CqgZkMV6FXW9qkFNK.mivzo6M7X_ZB2ZNWqHJQCLiYofi4eOqdEsWtvcU_cbd.yLyn0xDqnBR590BAru9c8VSYMUMwTFRHi96acIPP1nl3ErMahI1OMDSgh7My22kHYoOHXQ2TiXbA4j41qIjECTv5lum2engyN_eorLc7pTyaDWfE3hrMj.upWAGJ5VF6.OVYQRnwfcvMx_Vo0srW16a7zR7k99f3GuCTtcFWfvMRXN_KYfWvXM2q4WliVHeM8h0BsrdiJBF1iBXjduICm5aueKAJsbhD6F8NNZLEKUXp66l6EkW9UHTZRu8EH_dEuYBO9cqoY0sk46Pv8VMN24i9OirwFS8tyeERrkgfXMhJWDvv8v5OQxSKK1sVTs69zRDnb58D1Hrw65EvW5yMjYa3fUDEE6SpyVfUzzGxwjowgaVuyRP3Jd2uLEvjL1.Hqmp8Q_vYC8H1jp.ZFplFzvLQkd6sVXwQelr3Og84fFG9DpVSjxVE4FL7evIK4UIjaJu2v4vF68vqdOYqHwOMFoy9MTt03LgL6vx7Fqk3kDAOW6n0twCf5uAL0Gv4lDiOEkyG3tnmr5koMksvTgy_McEFTI6X_TtSL27HiHIjmqlvTSkA5F6wCgayRdrkdlSTMgeHYEj7ZOwJc.6elVYJVb42t3t4H95Ztf4zK9FN96fOhT8R0OWuiIQ.FUzP2Sk.71DrKgKEkosyoyCDchnSkiExoEgRQznbM5wqdEVNjiSI4iJ0xqeZf8rl9KXZKXbgA84uDQsvP9UiROwsblQOCet0rONJ3H7zUqidYcXaVi.TimN.CbTdjPZTwL8P7kE54divPVipnX68ghkJqNiZjfgkHV0FJo1eV6CZ1QfCkxZJEHNd0T7whtP.Ou6NoAs8izIsZzRjUWb3_uNthFmZSnK8zIk1tXiFzkA2dzp1T9EAhH1P3dtI2J_BBMihWgfnhXUU8.H6d6DsME6OSP7WDgcmsBcrUjiDyVwjmJW3bCPXOQMlK7uhhn56wpmGaLMuP.IdrkpBCfPT8in2i8f9RbGYR3RPCB_aAHT_wdQeC7jMp11DRGoeufHm6xufUE1hJQMn_0jXpW7KeA3s_sJC4MLuU5OqmI3Dli7bOh4FD5zaSqJUjk7M6w8AgNqpCziR1OGEeDOeByfrFt1fJBJ3lWHswz4nFOzGg_wkf.W00vYbFKvOrlom7QZDAHiI0wiDpbtt6SQY.14cGUIki3.0Fy195r2R9104v5rWrDlttFnlFYHmROe8NYzLBeLyw8svQyDzFJCc4FgiE.E8cDeuz2x_nCHVlKqexfbqEZBPgnEjcynuguswTgtiWEgYn9naSOPiOonDYGKa_Uf.2BknYNJfpBgLI3Qf7CnwNRf9jXp3S65mFD3pRJTPYIk_uYYFd3dUZHkPIJNE.c4NB3DnjxEdDrjWjA8Ncu4jA9YRT9t_hHeInGxqD86YIefabWXcBnkjEdzqGhGd2nsmEMUPijLYnBhTYuQKC3zUDFZ9v5QqOY4wOGyVwzi4iB4Ht98tugrv.ScyidxE1G0OWEgpyCjBmR4i7Dkz.3J1LzStMG8EV6.flC9e66DwkzD2X2R_XwTK0DPBicXZszox5MhBhCghF3ngPcQUCXCLIu0jvDicK1CK_YwiSrwycrFNxiggUxAYLV440XiVJ2o163HxsPRnOkNvhE6AZVQiV7YapbrNTIuewh7jjV6wH7xNQkANARuSG2lDz3WqM8DkKzKCkCLx3zY_8WvsD4j9Dt2EzxEo_Yy7aWxUYelWPV_PPZWnUMzhyBoBq395JislhGVTwi1KxCrLdPt0C3eZ28kK9uwGLpMTMjtgx3qmCfP2RnxgsX0ztN_wcPGP04jyUgA.XmHOUyurBeKxhp293rzap0T18lnjAsoDq4iDOhpQE2zKi_AXu6iUtlPV_tFWriU0XE4apD.pXbGDIM3QINvloSCyw2cndUFN6oZshC024FcERbdtVxiovgKiFCqqE_8aZuEjjC6BOW6K.gqETXWvVoAlF_xvyfReq9QHvcwxSGJbfSXLAgbhktz8aIMoX5NvMmaIWmN9458O4DuVhAQIwqLs0v1Y5ZWCVUfjHrBvwDPhTPtV04FntLmPxJoCjyta1SOhZHb4EAaZtf7xLs",mdrd: "Nm5XFC4rumJSShT9aWjROPuf2TUyFw9QI_9jmjM6kj0-1739099549-1.2.1.1-mKT_vKTx7md8W5kwjTj8dNEueJgTDF6RBUSJS.L9OuusO7RFrANHT_H5KhT7vv.jEbMB3qjVC273usAArr0PDTi4tazSw7Xk15oyKyPzeX6dn1h6HTVmkyFmaXld0xHSlWcQe.OHrW53k2tmknuPEN42cXOjLfJuZRDnx98tWGhW41sxlaXeNLfrWD_nDBD5ZN4h80ZylTSCgj2_z0LlXWuUitGsRlX2GiJ_WNTdE9JzgKITSCfKu_ZgmuFuu0TEGIloPNqlhySrA.lK1FI9GmJ2PBvEXf.h5PFHHK66h9QI9HYCLVwuDB_tmrGViPJI2av92gB0ViYqS.Nzhs6G203AifYws3NXwxsKku4wrSvaYE.ilDm1ew22dkhSk3Usul34Ellbs5GfU0oJhJG1dnA0pfex47CagbTxqIA_wzmMrTNHS7D5MPbuZFc8O1Uw2z0TrBaHIzme8snYlTZlZJ6GEwYD5fvq3bSd7cJV7K9aDE4YO3fKSSLPnqNDrUpjepYuEq014kNQRphg9gOqjolMmgE0B0a4kKnYPyX04ilcAlFGNqWZ7yBE2.Ua.XBiURHMrn4tyLAfg7c0khNnq.xjsE_qd9ThFB8ly4mlyUkXE.0GylR8QhL01RaxavltIkPXl1NwBqSjzmZ1IB2JocyNZvn_Wh43f9oAK3.7qv_54e0z4BCYlW12holutgD_ePaMM4Ok4e5FYIm3ZaGcmXU_O_olHUux9yQkWxyod_w7YuCcKYAyFET78rpxYBzxqFHJ8m168HH.7qxFPBuzUK5I3UjdZepzojTQUnbK5gPNskVLa42VonfnqUMcU7XqkCAwUsNoSfsJtRaRqNErQZNknXEG1EJ_8oJCGI3AagciiLGXZBATNs_6ZYH4MvWV.E78EjoZgTwpyvi_cB7YvPzUS6UF6ydvwmKJ2Uz.cWDXMQrzWD1GAD6Tr69gff5XYcTx84vN.uuI1onKnqCV9DihdR2UFZwirzJPvUJuKYCMrZgOX5NNkpmnG9Nl_q12NUbINsaixXovMDIb16OzcNkbhYzLg9uH_nta48KY9sDJy2G0pDoz5J7laaJaWTatpWHwFLtsf_5SIvNZtIhz0VEHxzjGiMF2EjnLywKWrTHKfne1LQMlSx2IaOpArvVsC7bJFSqoH7U08YruFOIod7nl.V9k7gs0yXVIszRVg2NcK8DojqMTkEFK3_eX997PF6gq4VLTnZWHqWlbOUfspq93JMOwVwhxcEPmskMwPqT0AnfSFURpEsw46Rf1M0Hio_JGaAFZhDHIPBax66qB1u_2932n_eLYb7iDkWfjkfV7hB1MsEdaveGjaej7ZywK8RoHo1.7Xmf7JUbVkX0IOm9NOXxQ1559PX_zNHmzeFsfr6gT.ininFyPMGIca4T0y1yMaZLYURghYHKNQfqRBW41_rJIkr8nQxXxrbT.bFuzGUbINF9pGW3u84XvutECMRshdWsux0rSkUvGuc_cNvFoSY880hUt9CGRp7js3gWly3GmRJSAppi_5egOFhgXtL.lPpvzwETu9C4u_7_ArCjmXA1BZkCT8C_kzwDj1cZ1uYYlpQDGsi.f8V9c.NacRwlIHfIHvs63AYaAu_6FhdLfRp_o.Za5llxII8bOaIfTDmaBXYEM4vavv4vfJE2uKS70Hu8xl8apQBNfXEJCfUyYzABvbHn.PJP_eDh_9MiBgFvBIYfvCwU1AFsvgvacbGTxwTA03VIQNdYv_DP2X_jvA.Xs6S0LvBM5gt_QZqc7nJ9T26Hb_ZKlDtJmgg2RnuYVh1I0rWFPlVJbxpOk_Q"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f36cb7994dd6c3';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\/1235490768?__cf_chl_rt_tk=H0GccDuIAeyTo6wn9YQaqCYFd5rv0T_JK3aUPCNYJAQ-1739099549-1.0.1.1-Op6mgCS7hHDeGAeukxcUUiWROtLKEtXkUj1sB10sH9E" + 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