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-aff54b1ok.mit-edu.top/post/5810796432

  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-aff54b1ok.mit-edu.top",cType: 'managed',cRay: '90f3658e6e2cc58b',cH: 'hCZLakrJxd9qZBZ_Dz8nL6GiNVv0AmtiefxaX4MjZWg-1739099256-1.2.1.1-WKtMzxfFKqfvZx4BmhfbPenLwglCydzn09NlIJQDR8zmchJnIpM7YugXcGF7G9Tt',cUPMDTk: "\/post\/5810796432?__cf_chl_tk=dCZ6IUTt1PSDvC4SeEqYCUi08ghEYQR_eASWJR3KxCQ-1739099256-1.0.1.1-PjpZ3JX0Z.E1sRjL_BE4pyNXOTTysY_1JbkDcPON7w0",cFPWv: 'g',cITimeS: '1739099256',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5810796432?__cf_chl_f_tk=dCZ6IUTt1PSDvC4SeEqYCUi08ghEYQR_eASWJR3KxCQ-1739099256-1.0.1.1-PjpZ3JX0Z.E1sRjL_BE4pyNXOTTysY_1JbkDcPON7w0",md: "qRuJAHjRY.bPgpX9UR1oKw5Z4VxXzsFxpkmDutkaiE4-1739099256-1.2.1.1-0UzEY2x1FO9z5ux7Ut2pWg2L.eFQxDTN9_0PfojrdeozweVkHdko_vWjfChlfz8wLgDCVVApX8fW5Koy1iSxx63rFOMZBw3A_rdjZ8XCJs2WhRilr05pBceST4kephcxj5nM1JkcC7JGrH.gZ0Xvd69NAfRm.5S.rpvQnIm2qJ9nbKAMmLYQ3fek6mPV4LypCohSpoYO00oeOLiW5qEu5f3vNmb55n94ZEpaenR643JlN.sAgTcGczMFYI3744WP4EwZ1GCXOrCE5WFrPPwhMFxoLqb5q.MaLdG2JkHY4Jl8e58XNR6avchRGmjXhyElVS1YzDeDxz36PImX0PzTSQDs0gExlOQ5KDUPfMewV91BYRzAmAvOV7gXm_sbNZL32Dyu_w9Dge912niNESSSh8NtlIMio2dhTw6xawDg5apf1gjt4De_.9QC5dmfo5N3QinwfhnOlB6.HYPfJxRwJ7QMkc8n.MmGNuAX7Yw2Cxe9oVu69B7vA9Io0wWysjU2kKhVbYbcqH9CymII20S2BV6MMyd0qvdhdxsig6AazCZxo91o3RocJKB8ucCjF2UTZFakD4C2fZXfeDiIgkIYrZMAjogZN7WSKA4vysSlcyx1y23cW4Cg3Dih_O.5VP97pp.ISahkYCdVM5eEuTly_wAUSeVgJB4v1O9ncPf3tc_a6THnxEZFnSLcweTM4bcsrYvrWGl9nsdFM26KHZiv8ue92IiAEAgJD1WxyvswBNchS6lMm2cXyKDVuIzs.qSVZY9W.YYQoUVwGKaKrz_rWQCPfGK79mgckUgafSNsyDfFkO..cwtvR0i.1Z2cbWjPYKO6wHPEZyxspxtVuf_rGNgsFs7QvpF2YKzPku_AZ9Mvb2qHsitqFGb2oAwBLerEzzT2DNWUoR7QxapdajkLfJ.Msp__sDTEnuxkxgDeEqxpTZcRYgKupsoGHRBCGhdos63LYjeY42B8Znx7CRtRTZGE4arCL.LnH5KDlXL6UCqoB3AcnTH0Q8bBnkYAHEeCIMch7.XqCLedRIome32qco6YwM1jwMDELTmikIlG._2a2VWi8KFTQ.eRTdk0FrhGGJHr5taDsCSmUlFt7C4TKV6FA0.XJzfvG1FqWHqXWQ.hMkrnvXWx4D1X26RV6qD5tq0PwsrRxNuZMMn6q1apHFSKf2qwCD9lIWX8.FZwl1Oa6cmKMW7xXExYfx.EStnzFO1hkTDrDsnq.sVAT9OguAgnvEyJzSX09u6HC.mg_4Nkebel.tRcvN2bddz2bEt2dS66OHgQ_GhnOO96NXQqr5MWEUQOL8hlbB9V3KT.gqsGSMoRbNDYoOb8xbIg3es4yapacFucSCYmQdI2KLkAz.B4wY2x4njR62CiVn6_wMK.oudhn08ECMSNvgdM69Cn5kkMMUKyEJgLyF.StmC5CcP3GXNfkm4_uM9mR1VTawb0fgr9P5s.zzB5q0m0CW.8ucE9jB2sxAvkiTc_1aBDpAi01wGN8DlzMTgB4QZ8._ZJSgwLCE9vxU1kBh09LsYTyFrvuU5trBwc4quITKvvitKViybh9l9r_oVvo80.F9cGOVDS8_YusrUwdQII2GjA_qy7c386mThqrrCDsC.z1Ob9z7Aj9oJAe8PTbxXlLDQY4h0GlPK29zoEHmMYJBJ6Qo67vpcZZmdk.cYtNCE4fa9wsh7xhgsFBcBWfouMMfypWIcwaxaWVNNeE5IcFnXPzD_x_NWVKGHRLcbACZ103z4pyD5xTyyqCdNMMN5HD7OsPD0T03_gyEQGRStMqgKVVrBSl3lGxE7RU_PdMlc6y21qbBLcLUA582kyKGtFeY8ngOfz0tCHM6PxEKVUePg_sG5fOH9QlWM838D4i7I1gAYZmEirKNeiN9jcxTDch3bjbilt8ByVia_19INgpDScJA.APyiev5wKFZtdjF60csFCsyYpikrgS3C8mY4cJ6AaBEC_wEQRnwD8EszTtGJemxzDZ7I5aPMriT2IF7hbA8sJbyzk6.1W476dbRx1i9_r9St587A70Q1gdMedRFkiwXDZUL4BmGjNHJcLNDt63yc5Nt1WdgBLPBDnbDfzlCzoAUgJWAWnOULtvEfHvRbCu_BqmNbo2IrVVO4.3lbCPvRI021EwZzY_hSAI.dPpHkXZJt5X2HYsacIPlWrrXZ1QO8Pe84BWXnlEo95fsig3oM8KRfJAgoAAn_Yydwf6LqAaZ1OCQ.fJ.lN9fLBvuEd",mdrd: "zj3JtJ327S2fIwohuP.sLT7FBcE6VbSSW3esUtQuFjA-1739099256-1.2.1.1-pUeeclBfnuph4culijVfjz5U.8p0B2oLFBdXNvOxaGJPBaSyG8bICTISEt2uLd3cGM06KI3dYEdNgrp1gJXqBJuco_Kuth.ez6r1NuXvcyJl9ylyh4nkP9Az8HN34GopYZ9tKX_m.QuBo7r1OzjsVWO5K0p12UpWABIxWfSGObDWZJRRoQI4XKvrN.sppb4nuTZn0vKZVun5EcPtrcYdjnG2xdLqQeA_e0TFzTuqEQBLNB4QwujiQtA44CjNuVPiC8fLYhsMo8eMUVoC2xOe3DBOG_rACSSnlrF8G2CSFE721fu7To5SGN2posx6do85pMM8hvH.l.nAQyr6Wj6AU.BKoZTqxaqqV86uhMxz.5HYKTzIuoPhE7n0OA_LuAlnQ_DbSeKoRGemUcWJ5B7maR2lNb.KLbC1..joTgfPmHx3J21qlacM_UFJW_h5HCa8dtk1fPgJT6CQ8eZqJYuot.1QNI9mxgMNjnt2VcSdK.WgQyH9RprRLsFqGOMf2Bp.1_kYNgK9AC8rctcVK2Bsa2vubDk3tvZZ4KoWOD5V.W5WL6V3e0CQvEPRH3w2zwIYMjtF1V1aKHNLv_GWuXpH9zb18VmYZ95kYq9GEsqbibU9yY.oQo3gqv_rxlfbpqq_qnR_UBCWN2f.d6m9m_08AQuABtEr.Qkxy.OIiSU3yBfqt2XLmprHjx1lQ4NoJ1.mFjq1Gqn74IWOZskb8D0wANTG8QLJ5Z1fF0EIL12uD.OIA3v3tXiiXiI9ctCPJ8Ch_CWKA9P5dGmrRDhU9mRMeogszNx.2Rnp6KYVknaEAMsBwEn1xZR_TJ7txzy.U9MJK9.iXb6sujiXSZTz8aAOkQh3NK1ikjFw6hxqXyku1zOVI85vSBOTeY3fEdNiJYF.8Ued9yWlxPcAzhQwxZkCfk8X0VBTXjiHYfUTtA.IceN.5CiXfk8ugNFep5P8sfm2CFr_TOvj8UByXoZNW8GWZTCyoRMHPo7QunbVrcR4sSRXMJ_dyUMQkAAFHKHtOinDejoFQ3Hs7aURDH6mxOZvS0Pkzs2_DD.oTPBBFLE2P_Wvvs4N6YL4plDc9GNa0gViGCzIOiOu3G7PU2DoKOH3s3pYabljzto4ie9Fh9Z0OigsZs2jygnfexGs2wxrtP_M3VcbJ5b09dxE_sX8o4h9Ctw8X9jxnnnaXdFNR6Tb5mbovgcdsZ_qyir23jF7685_o1gnsG1SLNG5VgYgFfUFWdhQRHv7dh_I7imFzE0TILziXAr_2d2xOrVPzFnEjsoPaO4MGXH1LIr7Ud9DEIl8OmXbB1mGq_yuplN7sDamtqMjpjIQHVEhkvxb2xcuY8S5wPyji5pALKuBgWVmDMccMcxR1fC2u8ZK3R4FJ_5AjzojC514NEG.SbDJC0xA57KLPcblgqB9DpJ_twYqNIj0Io9oscDVYkOOSPjveWgkIv3n13OiAD5DpAwTbSA72U8PfDDywNWWLucquyRjQhSXJNGLdwhHRuP_cesZE9RPk5JugCA8XrJ9uWvOMV0QFI6CV3JwDPtw4REkRCk0ZG8vJEMA4MR_91aegSc0UmiuZe89PIPdgd7M_.YXc_hp8OU4YyykzuZ4eftBoRHViWN2lqk1UB2cWsTq7s1Nfa7z9HzEBBChZp.7anZ41y597T0Pa484qIkkVUm.xktjn835plzY.6n6b9IWmgchETMR97t3JEu3oxfD1YHNuPCZI7SxCYgqk3yywUDaOuu8.INnXhCHORJu_miT5XbSeXx8wUHirPEBDzpMGJkNy0ZfKIiwvVTD35xIh6DBdE7.19JHQf5n3dzGpAib4unElr_B0kA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3658e6e2cc58b';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\/5810796432?__cf_chl_rt_tk=dCZ6IUTt1PSDvC4SeEqYCUi08ghEYQR_eASWJR3KxCQ-1739099256-1.0.1.1-PjpZ3JX0Z.E1sRjL_BE4pyNXOTTysY_1JbkDcPON7w0" + 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