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-437683972521.mit-edu.top/post/3890421567

  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-437683972521.mit-edu.top",cType: 'managed',cRay: '910aa949c9d6d644',cH: 'pZ6DMlzxcwGTUqq.UGE4tTbwTYRQ3cS_ewY3P7USSEo-1739343202-1.2.1.1-ZOtdnXqOyZc7RMlGfO3UU90BsuyjfiqghA_3tJXhTrwmFL2v7IytololXS7gwyaN',cUPMDTk: "\/post\/3890421567?__cf_chl_tk=.cVQoVLEibzEFw_fFHA4Tirz1U8Ttko_BnjFw65GyrE-1739343202-1.0.1.1-cDll.m7K1GXECZ7xwiw8Tfvpsh3MDRAxHg9Fk7813J0",cFPWv: 'g',cITimeS: '1739343202',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/3890421567?__cf_chl_f_tk=.cVQoVLEibzEFw_fFHA4Tirz1U8Ttko_BnjFw65GyrE-1739343202-1.0.1.1-cDll.m7K1GXECZ7xwiw8Tfvpsh3MDRAxHg9Fk7813J0",md: "i.NqENY6zbk5T.7Ka95TTY_tPNQr085bUhC3y0fjGVQ-1739343202-1.2.1.1-xAYxY8ib.tBwGinDFmYaUIPc38VygFH.3lzW0lNDUjN5y__9o6.cPixf8MUfKh8DdeYQGTEtpPtefHdBdWOkguqVQngpdyqfnOAIfXLngRlOTeImhWBoCt0FqfrQvH8UpHjoq3BtYa56gaBY3X7atnaQB9SDTOFAnUS9ST3uZvPOSDEvEUDjKHxEtbK8cSfS7PJHj4T0GjRnmqFF_uWIUtLfQkrFZD91bAcwaC.FEnhrJPmHrlt.gH3FmkqWL0dtjhwqlkNb1WCK8FUcMGKhvOK3vkGCpCL6uedKZbEAK3oCMS9na2f4owDhSqM9Le3N6Xt7gcv_W9fUHhZhkKS_UYt5mivgztquj2tJS4i3LSIXyMmdoVugPEkOM80aWvi0JUbzdKd4PvJHzbKAuV9KiDdij1D0YYlNzPOSvcCxg0wwL.GN4nAKAfuZAhd5nETglOzSKixzrLrNSTdKaJ2jDUNJHqNgWmqSZbUDheAp3AWAc6XEI1z15DI7A5rM57ewBzTqHocPzxPPH7MFw0s1armV2hplCzpBAwimatyUSR.Fkl2N01wsT7EZSIU.X38OVFePj1vaVOK4gJpghXcaxeh_gF0dA9q1YoBcfKA.G0lj40T.ENj4_qQf65yVYPmjJH4JZX7RJRe.K.Acn8jEB4fiA9GNdTCKW3IbNsTNbPjRpploM3p6tObmJNFet71rsKUU0bicJ_0ZgJN7yi0L08O2Al6RDsOIvukh_90WQzfHXLgiCTGZhi.jcopCeDy.YUhFekzwLhgPNIUGdXgvC9Sa5PD87sQh7t4ZPlBnq2mqVuTF8SnRWcw3fvTlfyTSW9i_Bq7rwawxOQoag1vaOhCvxLUQEXVAs5iBZjGEwsN60PEmXzOA96.ncQPyo5ZyV2T4T4g3iY7KXZ9S.nkkYbtX50NcKAW4NYQlVYo7tGiCx6j5RsJoEmapg14XAVir02AinLD3sWzp10jNjXeRD5y0f4Yw3H6O.gr6r6H._.WnTexUxFO.yOO1p0xNlPAy.wCDstFOE5TFoKF_ruQSVAvgxiPPFYQ4t8JPvWCZ7X1zN5G.uEzR8FEmZpHXGsjLbUAOxR3APxc5Sg.ecuJZvQBBVR2i6SLWDGne3B3i5gaPfQgu937t0ltTOxqURqICP7d00XglVW7yt8YhexBfwbdCDz74xH7IUPYBigt1qS7YYJ0YCdU0X06vTqAyk.9l.NUsqD8V5o8divD2DUXlwVXoBPEuILRcQGSCDF..rHsfaDyEtMOqa._5CEYEp.o1hm0OLQrFc8SRkUX67QzzR7dToGZxAU.1.u6o0xdTynRoFHIrckdfenn08qUfuNcRRK3sP1GqgBdU4MEEnNIyexBCG6vr0von1RWR9AU90KzObF7ffExz.iKuekMo2jZw_zcTvl5pN8ZXDjvC3Pq2d968_BIrCrMEbodu08ogAM7ScUHBHAk9YBMUE3njtF3I32d6.BXDBTvsG5bXWdwE4G0r872pvEBS46I8JutkhjbWPFOgODABqDHqIMbow0DmTcscgTxtnO2tAfn2j9grPHEvHQEPEJDuEljEbdkXupFEHfHIAyRKuCPrqGOoyiGm.3qtxD5NQNh04D2CVs7ZcWL0QElwFslIPHD0vha7Ge3EGYlzuwQDux6RCjPCbZyw3T7RNUPIxt_m6_2bJDAhsoGsO2oyWvBkUt.bLjWemU04CEAa7NG5LehiLF3vShkpdfW4.bx_CzfwY4armMfD.90LqovQ.Mjeh_t6jqtQt_9WUtQhstmUmFqyImnxNtiQ4Fuz1pmUZ9JueyorXs8LjLYNRous5rD5M.Vq9j718mb48TPnA_XZ45QFLirNxn_jKQInsnHAcrDm2jbaBQTwV5O4jjhwe3QqKCcm2UbMwDh_12iYlIMNWFqlf85rNM0yMRGmq0UjYVbY560i5jz03ZM.V_H37_HWQmiu7R57y_SE3oRFwSlcld7jPNvGYK.yamQ2k_6i4_DHI4hsMRI4bd1lxxMbPUuPQJsps16y4_jFlqeEvtTCVV7DRI.F31ZwKiHjmlE2VN4uOP1G8auu09js2aPNrjujhX8w25AxN6_P_gSyq3T7An32VUsevb3ylyM2HPUqExhzvYboMy0BuM8lrybLxlz2e9VF2urJmng_ju0Tgat5F_SUIjKaUy6Cgt7yONE35CjakQMApZe1LqCdZGNBM98FN285_K3_mYC7L.4MsGwBkGeh04eWMpax",mdrd: "UHM2dnb5ejdjlHO9SVLdZAhweVrsQrxw2uo.RkETGAs-1739343202-1.2.1.1-Qe_joDaH5DxLB3Luc7DxAM_TQOHLHWLQxBGgq78AGTSF0K6Q3d96rbsHN7Vxt1usaDY9huPypM7WCpoKTT1VfBp.Ogu45VfslI1iACbS.2t5YnlwNXUuTWtnvP2jcT3bIRKohuM_dWe4gwz304xhBBnj86DRPK_uQn4ZKnm2D4tjsKQBwiyHf1cljX7bz0M6_..sg8xuwyKrEAPugj.oKGmg9kM58k5K9CFQnVcv5M23MmS3uwBawaRtdwwwwFTWfQ_ttBdj_sIeAJpCp8IJfMOCdnh77L98lZXbHWErAu79OPp4S2uv7DK_PDNRo6i5e76s8VwJSs.3fAeokq8WnsOKEKAhPueQH6uSoN9cLLj0F8JePOOEdAzH9u5B8yuLbvFVN1nvYv9M3_Ui5nwvZzyqh131TCub3fkSPj5hW8QcFlHQog0zEZtqBWPGS.qmBF38r3RHOBYWeqe6flha8KX4p1WSTSMlpYD..8L.146hLOAUiy9B9h686gIvFTywXbmwnDV_Aw_ZzuVABfEjJADGwGDbDtRbRZ4J4GvRw74xTUshNZa5NvCXtNbNH.vR3Z74GvB5b8AMs7Tgw_8bes1rPdquxJhyEe7QXEzygoNkOvdEHNUe2eTu2NUxyUlZsv9Ebs2P3Z8OHn13Wz_dRnl1RSo0W57Y9wJceq.EYDniPCA73FvXuKjaypvKwoi6Hpw_c4DHtvcy_1beGY64UIU9vcbuu4r9XmPJ7nAPV2QxJXq8T9IrgcaCfHWtapyEnt4IFb2we3kCMOLmseQVCvbLg06ZVjCiPUrM7wq1PgKxLetjFBpEFkYvMrJBnTNHHHA724_v5_Ca2vgf7JH0RLhD2u10MnSFpOEg5AutKGDvHZojV_dIM1dcOqP1E1Rj._PRpYQTWzQe4HshwmqDo7zE8R_RoavL.dsSc_DvL__AZL2nK6nG80SAYmEpHIN4WqiucIExIrPnBd4ONv84vbdqQDei21DDazNeP3b6DWftjNhfMsOsw1rgFaJSHGLqO7on3TXcnCS8rK2sLzrReAW0en92sssMrSccX_NRNGDKet38yrCBkCfmXq5jQADYf2jZuJT0m0n0dPF4o1nm.6GKzY4vPDt4yDf9B8Comn6iuzSDEeovJUdKiazm8xRfCmWpfMlV6ngd351Wf8.kLMieJ.de9JZexX0fhA5dC18ZZKvHqSD4rVjw9hfqXyTsSvSz2YN4aYsHcKlUIhZku49CpXHpPGk8R1Q_e5r1UoJ6iXTl749gcrgxRUsQx4MziXB_Um3gDoWHwKuzvrCtrg3ESob5TfEOV8E6JNFS0UJykXRVKk68OLXMj1gbkqHcYVFuU2P61ylrwnk7CITeOLIvZK9MWKQi5.Zo6E0zNrGIe5RHmTnNP2aS0R4CkeqVtv_bsQC8ORm1PwYXgv50CdTVFv0ImHzTlyGAtrIujooiYcGIadCsIgeas0agh1EPeql2_WIR.YwHHlmg6Qg7PBrDOMLZ8OTkvWXwuyKWV9gsTpO7PCjJXpZXDNQQBi4Q9tDXKBO5RgzJOP687y361TVuxwRuQE4xYpCw74WrLp.3IMR93jigeRr6AAemOGuX.U3dCngzLIe57du0l_QzHn_BZReV345tF3e7UzD6pz4mCT.ZymLypeQQuMbbD_EUJftH0mpLBAwSUKT9pJCSx.g_GBJIeroTYcrdwVMKuc_b.Mhbn1WBfs2wTWD4sjI7ocKrLGvps.qG2YaeV1dEnECAH0sfObzWgO3HqtLD4bd7P_zmMTLS8Mhu9C9.TstTfo0RjxDQ45_ddiG7HtWPRpbg.5ZnDXLICXQUXpJGN5Q"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=910aa949c9d6d644';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\/3890421567?__cf_chl_rt_tk=.cVQoVLEibzEFw_fFHA4Tirz1U8Ttko_BnjFw65GyrE-1739343202-1.0.1.1-cDll.m7K1GXECZ7xwiw8Tfvpsh3MDRAxHg9Fk7813J0" + 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