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-aff30xq7t.mit-edu.top/post/3785406192

  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-aff30xq7t.mit-edu.top",cType: 'managed',cRay: '9110502e2f5b81ac',cH: '9ho8mHSt85JbQIv5S6nLVIaeM9r_Pues4VJ5C5jOPB0-1739402467-1.2.1.1-9c01jxTN4UwBxl4JE62UsZh2xXeHQfFwyTo15Utv5ABAh5t1dBqhikjTatlV_LwT',cUPMDTk: "\/post\/3785406192?__cf_chl_tk=rrnYOmeJbiwnzEUD732DMr2wO8Ui94dGOj181qME5HI-1739402467-1.0.1.1-t_YSwxCNCp0xbfcBZhjiJls.NZvMQuwyO_.aOYujJgM",cFPWv: 'b',cITimeS: '1739402467',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/3785406192?__cf_chl_f_tk=rrnYOmeJbiwnzEUD732DMr2wO8Ui94dGOj181qME5HI-1739402467-1.0.1.1-t_YSwxCNCp0xbfcBZhjiJls.NZvMQuwyO_.aOYujJgM",md: "z4aem53IOwsHf7vlXEkPJFWxuX.B7yKRleTpLhFqeG8-1739402467-1.2.1.1-jZbLaRQGPpLF0NhJrVOsyxWmfKozs5pxu0IDGvMgfeTxySpP.uSdSpOonYtFt49RhjUtJsiazResdzQGOo0pAvt3vfsKEtaTnU4O9ANyQC0LAsiKDP8tPAQGTgiBTQzVfy6wmN8HBswGFbl0KSB0uxuXl._0IWzKcDDQ0jVF3hb.yRmMQqqFKwTcx97l4rASf4iTz1GeZS6VqGgmNt5U.iT9sI80MbQFWxU0Qi2ORvGboEFbdUiplxjHzh.edVIHyu9mqUpD2691NOl.bBMdDfM3nQ4f.xiLCOS7QkFxgzVrXWN2xdbI.DB6MWmGYD2s9p7wl_kjnwa9PCU5NmAafn0miUgMbxrSWVt7ub9gGWEPP0s_nDcCHPFBNa8A_ZUBM4kWlei3gSxKUEgocjbU2_24jT2L4IDNrfz50G2YoLrslL8TEEdqaOleQoBz40H8KyAC9l_lQ5TMmAxY7G7QgmchTeCNeG97J6RhDiq68mSSihK0zMO0xsGZSZqMmmClwUO2yUYg0EaXN8D8l2Jtd2HHnhc1P6A1.nrSeo0UKWUIFvcA5N6MAvlh3UlgvFVt6BjYWjE6dM43OWcty56CJ9LjkSTFBUpb9o48IRt5Oi75Pzv9jD1BVhMd_0kdd9UIG7VhbbsnyQ0xIAIWVFNMyNU8fAzRMBv6npLJVvhzOWdc4SxIkvPYHw8ViYQeZ7ZTDtGpiDNiN8jfqf7NS4xYFZKiCAaFWE06ztbEkDMz6jl53NgiRxcefhuqtSmEmSCDEeRX1ShI7kGmy6iSHIjTpXYyFiPoCoE4a9wWmIHSA_0ASEyAmJeIcqvpFo5rQVxHF5OXe8KicrcCkLtbCbxR_ssoS.Efx23aADx5hMwoG2_7KICX0yHX89iAgGvT9shKNsgoRCd4SXmhbQtbs6.0Y3UCD2eua2Y82NdiPC.sHh0N7n0p3pew982Pw5UzCcYX9xa6DqiSHEnfTP6VwoRKimJAP83LihSMbn3GjOHSkLOdnqVjaOrG0AZ__c.4HGFzN8ALzYauFOgyBmvTcpI8nT5AXo9s0TXw0LAqgXUTh2Kb6J3LJYL4Tryyj_.E11FcrIsYbZjmQpXAwsPffa5UphESVB8dgl9kPMS0.ouWaMLIw3H_9RduaK6wyDS1bxeuunfMIpSP3hAoS4YY6FR5nAuGj6bfAG35KD5KqEM8894zRhOnUa1JKCIVNu1OJaZFGj9FQLEbkZyelWenKr__PFCVhCZUaelntFd08y_ZOo2q3s2tdQDYqneqS5xemG1.W6iFracmQQ1qweR_IZDOb8P4d1bb3WOojRmKlieAhWl8_xLN1k2eX9YUnKk7mFOlHZ8s9TeVjoCsuZ96njAjyJ2AUhylyPhquQXxySCNBifkSRiIKxFbqrk7YkQ7WARIbWldv4wJGLBORtoNnHKwdzmj7NyJ55C.nPDV_5uxcSh2GYs58gp6NUoKnpb6c34nrkUDIOpOx6gK7cODe9urtVvKFBZGDXmxMZBN4HABCX9yIcad4aI.QVFvmmQMeiW4YIIYiyd0FwCCQXs2sq3J1pu8XwwtbHj4PENidEeNIelzQYnaSmaFE8NblKmuIGKfSf2SyAUnxhu6hWhhPSmjwjIj15JkR0zlpautif2cG3AIgbQvfK7GrcCd2XLF8xZxefRn8QZxRFvBgSsu61oPVBYVeVKEG9iCHTtVf5aMPQ9WLYq8rSVAMebStoxPs8zETeXuygm3ShBFmxRWfuQh2VqPtLj3b6hmEaGL_5yiE87wpe_3x8iv80QNbzgfpCUEaslSUZ.R6AM6SccqgcL.qVtdUs_YTClHyWk9AQymvKW8pL4waDFOmGrzQw0EY_ERLOV6xGrvv8jF.WfT6f3Hyh98p3lSEAIQdlYGpXyZZVsrtsF.Pc5nA.p3bpPxUvU0ZS1LLXnpYaF9dsmvMnxq9S4GWNBDeI1PM8j.NkQVyEgdlZoWD0vZVJS61eP_ZaKlXxtnXEvtejjUri5SiOJGtGDrrWqKIHVZBLeam5QWpdkVKunfughtuu3hRjBlIvH8Fjc14MED.HITUBzX13LyE17PmLj82Ay0EvDfCAoGVxzgJcNiHU3I.ebnYm7wDFNHm9lg1rtT4OGwXpD3i_07i__GclKunXqId71wTAo3K0ft1gKE_vhPIXTtCB4uNs_C.6z0Bg5Gnow4rR9_5pEZTwugk83YiWvDldw6vuxXzJAF5PcBcpMsrBJUoGuJxQ1g",mdrd: "rWdj4uE.FL2hu_70.rlthJoTUX.HLVW5ss1bpPgePtk-1739402467-1.2.1.1-aWPiZLlI30eG06C.sPzlXREKrQnckhj5C.Nhe21W0hEARBcT0Nkh7zNKPUjpawKC1v_Z0GUpX4AXqOqO2ExZdK0OXPNIaRNYhvZoUmegWXI8ReXWC9tXQKUPNgtyxa4N5t3JADBxUqAGjfaKDS4m6pxeUwJ0g9RzJWz5iSwyFROR5NDvchzthB1Ic7I_SqWx8tXr8mNaF4xqApzFYgVrlOnsyv3Ylv4tVEvTLhZPMHB9aUHRM6XRVdLEVrqmSoJv5tnGOD6suZmd.28DusMpRVGJVBmy0F5ROVlZuEJEPkleupVYkndYFFX4MiQjS06ujxMyPCWlM_uG2CpmcjfdmR9NYzXDaR2DiATTaSbq3PlmtHIitVwN3yvvwK.2bSbV0kbQFRh5w0BSR4LzoTMdfjaL0HeM5WZ7J36_kljS2mnkJy3YmPbjAGwB0Kol0QMeALKTyGIansxaxNvNuGtmGGRNwXdwvLHwtDN9MNqXL5oO_8DWEOZ.R2HgaFLGQPIQhloiPiPPV9hgQcgEtCtwqNGMUpG5rrajtnVovCQK3YFh1hmmvtCSJ5NuOweuUPwX1pwxQB_PUW1SYAPEgM6v6nRn7wmc_6jEdexlpKCp2J5Ed.37XV2d8nGE14_j6Z72ooIz4cI.P6jK15Xk7U3oSFPE93WV2c3ZMgoaRSMR_L7VPCvZ3kaw16wbnvv5xWSrjIEzvt0WX3YdGM5IeU7MjHY2NAFgzY8s.pDRit_TTNLV91iqYCza8p2F6Oa6Ey6eNFhfu6BAtpBUOqTqeyAJSIHT9qT5ov__AlwVwfYw79eq2cCf9JDrcHznLbBPKzPLwMfo3uUfOmqkh.1B1N50DtL6bI3u06Q8qMgnnTCHJeYybUxVbVYtX0Bhhg3ExnEQ92FMGvv_mvp.DzpwX3eIovvrTl1jIHK04gwD2r_i57dSv.R7WeUDb9D2P3maA292nX2idk7A2eoAu2zMapGXPEBOv9mb5JTNOEtHHGvaTm.zG0sl5_0xETcl4rVKIVhQcK6qjXnSuJDTSXgjs15OsHF6yuafJ1agFOx5Z2ncaP_tbJiD4WQAvLCkVWdcssdnNwu2lsErqxAkj1DL1e5O5v8N8EsTmsyEDUOZWltMzNUKZ6Z9sj3ft3lrTa3DbU9qlyDSaz4mAqWiubD4j8pqml7OGTQ9Ny5tHc_1tWya9hiARaUvcqJ4DewocqRQSkcrOG9krllTYL0Pr_fzX5lXNxvw23jicr4Hjobhi47yM_uIMptx5_Q55kygRu_0mVRz43laXe_Vr2uZ9EHW_5dIZFWodxRvufReoHZjq2s2QZmskgtwT37_Y4dzEha7pxu.MbKsPiyX53sMp8KBDNKoB3jXnDDO0l_iw4kAVBVRcJjfnXw0pFnL5VZSw46m24uORqMWBrcrl5yI..J6a6wtLR86wBYbqh9mj3SkoVKePNno9tM48Hy3y8ExJ.7BymR5jtOUfblUNJBx6ajGyYuhv.ubHXwtipro2anwqw.5Ch_6DBvnhxHeCi.77kQT8ethvh84DyekYQ4oO9PdHCXAP_kP1zYKljiK0O60ixIgCTz4s.jX5qmiwnU7szp.HxpXwQ3yDnwsLTgILB47bLeaGldMWrBdLKeqeOwRLXSpD5f5NRflRYCu1RfHgxEe7CFSeGJWHmQ0Sxr0Jv0lz9W9YjvXfLEnvTLiEAIxGiZTL19zReJd3PM8aaXwQpDUqb80TxVYzbyWfAurVxy_ddg_KMH0aOSCwKmWMwvqIGQa6jO_7tvBus2UzsrWh7JlDJlySThLQcEYX8QchN_ud9pn3Q"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9110502e2f5b81ac';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\/3785406192?__cf_chl_rt_tk=rrnYOmeJbiwnzEUD732DMr2wO8Ui94dGOj181qME5HI-1739402467-1.0.1.1-t_YSwxCNCp0xbfcBZhjiJls.NZvMQuwyO_.aOYujJgM" + 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