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-affgxke3h.mit-edu.top/post/3650279418

  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-affgxke3h.mit-edu.top",cType: 'managed',cRay: '9110c45e6c6f59fd',cH: 'CrkDrW.hvhq.xJbNpEv_C.ZOo1dNQ_GRcQqgXRlQQ98-1739407226-1.2.1.1-3vqpkRak_jZ8Vh8Q.Z57bGxLKkTu1vzGtqBonEDL23ajLKQxX0ruzyngoXYYK6wo',cUPMDTk: "\/post\/3650279418?__cf_chl_tk=lxv3Ls3X.fip8So8phgMMlRDagi640cGEjD2QYgP6XI-1739407226-1.0.1.1-FLbIsxoFMXUDH7vEAtJw_l0q8GNHsTbFcWJPo0BYM_U",cFPWv: 'b',cITimeS: '1739407226',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/3650279418?__cf_chl_f_tk=lxv3Ls3X.fip8So8phgMMlRDagi640cGEjD2QYgP6XI-1739407226-1.0.1.1-FLbIsxoFMXUDH7vEAtJw_l0q8GNHsTbFcWJPo0BYM_U",md: "t1VhyxOJF3jY1mYLx5yR6MqwKZLV0CDNdsPhktR5fcw-1739407226-1.2.1.1-sJ1iIB7Hhxxy.ykZLhiYaveUYAhXQWss69N53QPchtZTuXaDWzrvsNgkoB7Cfutcz07m2wiBtNRorbZNKEorNC9aLY8TzQRiCNODiF.XKkvVcj1A4EUZdPCuWfYsA8cIAOqMV0cMHuL.b1rtUPmVyKTaoziTO0kHIfCswF6YMc_m8UC6johnnraR.ip5BROaEEhQws4YNd2bzUgej5V_Mk7JMvJV5XkKOLbJftRh.Bz6YD4Lj5gLwLVUNcylHTGLPXX.a09BVVRQ0K2JKYOyfx8.OQDP9F_O2CAXrs_mZ3eHlqT48PJAMLpRU8_5JdzfYY_bkyVVQU6m7_D3mACEOBH7Y2iUzzMbpAvOqlEvw2MIFK35sR0h4ll5R9h6CPnKieuiYSZq5jWC3qwZYIYnXco7YhzlcbmDNf4syZMI3x_iG0fvhSaUt_qDp_W5KxHkcEXD715B30muiZcDJW.uL3vnrn.m6IIcv_R5xiUEhaUsv5wEiTnyk.uWMZEB6w4R8UwhfHE1bvf3IntheH6DvDDP8Q9t2mSrJ8imc7b.qGgn.usKI9JEb7srjNBckurenoIj2mMyQDK.n2QA4gIZmHZTdNp34SgXXsvD15fHx.XvvUFLltXRzJVC9SbIbPwuWlcTAitAn5v.oCNkdZInpx0hWwgYQcC_mB3xUNNA9BJuuw7yl0JPfkElafV_IFhCMruO18l8ClzULUrdIkoXrN2tDaXsASD8z1UrxFVFRzECaQsaiVK55Ytvjm41Wm.61yckxQ7cJAJmiNfsUzyLZYkJj7nLzWC7QCDLBbft0KYKzIXfuWaFhU_6c5tR2krQ.KGlOUQ95gDZPKnuzUVk3w_qnzmDZopHysMydHSvhUrh.OJCmVtisuV9wl00xZu0qNM16R0Cq02x3gXX45qvS.E3eQutGyyV3vRQIK88Hc3VNgDXSW0D7cV3zvUT1uuy.RSaJgBWFcQoxIveCJdRq_0arfZ3v.SR5pgKy2m9AEoO6Jv9NbmDBSEAzOHpAFCiJuK9u632_hwGBpn_1DpYVvza7e8CYr0P0KC_UZ18EJoTH_cNhDsnt0e6.7iSprL_oZgIDSj0Lz3eUWOhXlJAFJ3nyyMN7jW.17vcmLxJeYTHhMQIUdDaQXBtMEk9F59pgQINyzbPnYTmIM0U2OalDHwx5o3ulEmSOVE94qUmAe8d6Gn_MD5Pwh1p_JSqdtxM8WR7P2oIUEoyJQrvADlcFBl.spc46k4X4pXU1tLrHLpybMKDxgu4UMbjUbNqNgei7cOv2hBQ4f4phv0eji89zLD9WutTm86Y.HtOdRX.CCCyu1bYBaISavuQ3AtWKZO.9yzhdGc7qqI0iOP9x.t80pnDQUyt3zUjktLVDWfJP.GMDqtXUHP6jq539pT.eDvCbRxaIEX0c8Du_Napte9iZLboufgym_vZ9sNNlI5TBAqj63jQrh1Xyl9uBW_XOWOm57GmwRO9eC_Rrj_yqH1hcc8VG_YbH81qlLpfpLqdmTaPHSVQkpBmDJfgFjpUdWDutVqzYn5qcBbqSAq8Kz2PL8YwM2dHrlJc3ozQELIyC88OA5XZYw4QcvWtKAT0_BVk3iRtX3T1s8GdxBmrNZxURKkZlruWdOY1K68fQ92yv_UmLc3UC7CVzEDhviF9n85uf.SSUazRuRiBsq18NXhQUVIMBB2lPoAqnfKv0K.odGTGgR3VsAAK5v4zk8bwU9K33Or5apLqQsp9QVK3tnlTQy4Wof_07IvpUWZp576zSEzjpTLxA866DSnTq9O0Irp19nkKF_1mxUTlpKTAyppFzb4w4F3mJTKNwBzIKPywlsROHKJ75lAQBaWj9BraDrIshmACphXr0_Jv8FmixVg4mN6VaznRWMfM7nKReOSqnwqvEpbl.Vq03PfiXqH3yHgbjlwRY8q_GG3okE7VHEnshG3ksuOsFQ5pZgKgU1NXe8iyXxPS.Iw_6QpmWYGgp8So1_0XZOKHrep8XiscFHYK0Pxw80Kh39Tk6EWugHVgs_t15yQ0TzthTguR2dK7miLi8W9fxXUzTmf5o8pNL2wssealEWPSsk8wI24SGKgX5q4aHsVfYbBM7JwKDTxTz9EAmaUNduqBc7mBph6NPvdqHbe3WvBPq4UqX4S2L0gLJqKm8GsbK.b0hFqy9wcbv5Q4nmDdAUv8imvaLoW1sdiQTuakdqNKUjxPfdlkmaarEF_VmwwBRUqxWpIzA8nULs5u",mdrd: "xb6m8R4fiKxZJpu.2bCMJeLy23yp.8drHzO3wKG06XQ-1739407226-1.2.1.1-LwNIgN6W4UYBUxXjm9l4K.wvuHDB2C5VtGlWkbTomVrCru4Jqhpp9So8.saRgCzbXg4geHP4XC3FTXPUjVagwXXeRO2.MoI4dv3lj81ehJhnn6Er72SkRSVO1._W3JH.65Fgd2FxupVxsx.TBt3TETkxuEXoPWTJx.v6uEVJ9c8Vu64BsAmNUvCfBJJNnU2IqePp.FagxJJW47KlTrmUjDBsxrvSJ_6TEH1gEqgdZCecuU8u916KgbgVhXwiecUfB66PBiHNpx6A03nf2X5CxhG2.gGwCWRGUIzJ0T4Kih0Nhd.B2D_M7I_RfB5pejKPtIY7ZsbqE6knNhx7ryAgQYNaIblHXBBeEMZ.Nz8Elfa7jBPkoEV_ZkkJJBf2NXHnDUiGaWVKhbCT37QqN9pQqmDt05dwrLK0ooTbn27kl7qIkcnthi_q2vHVu0WThdYwpLnSNbWhv0os89yj1PQtUeL_LJDa85Noo9LvQANXx1k4eHd3OefcFt0msp1UdaUPRPXU91Icx9ooXKD3Wl3rOhjqqlmaL0vDgBPw6wBz_DzFh7kVdjfMD_CNbYE1_B_VFpSXGJ0X29OCTRuBM5ZzJxFIdVOFnahgfwtv7cywKCJKCQsTsxw9C7VrMBHWdDLMJ0WGTnZ.QGCliU23WGufFU30bVVTN8zd07TSCUIyrgu4eWE9RUj71.djUv9qfM5V4.qtWcq8z9LfGOLcoxtALdf_zyx2WTW.gMet4oJwUoUs.V0oVOpNCCTtNiAEx6ZK2aA3Tj1cZGoDkmm5SgLI5MAtTjJW0FLeVZ8GPXAUZ6dysFN5W62T8UbgB7kjQN.rHk_3sfra3tedBRBQOb2GAgOAUDKMZC2MBjocoVtzkHvBctC9POdU6ZM3a71zzcloO4ZEMR3S2yGF8bZuM0ZmojNhbsZI2dO1U17Sqo2EliolbfbscnvW1VrSYOKR3bIu2WljsUc2OLHkEgO5y5GRr1Ypx.wJh95e6UCVrtL7tQi8mWpDiUI6_Owc8h04NVDve0my8pldZzx5EIoFGEZ3ELc.8AESmJQxK1M3GgN.254hOtsVdH8ILfpBEqcXTXYYxMT4J.ORQYBxG51.SJKJd5Wyn8mhiG4olCuWNNOoychG7c7Ye1NCoXpAOhc7lrhJ_L6jKj7WSQVKg9nGdFuQ4Hqxub34XR15pIlP0zkpq8q2r1p6pwj8UtXc4T3b3NyxWgytcbmq1ugVZElS5gYdygczbviE4_hhbHX56hrZVtFMFFIJ2G_.3WEvvDteDGuZqsQjPJBWNwUUYP.lk7G8FgbUOvx8QoQO3EKasVVQmJDAD_8Skdj.5pTT9iUxX3uGO6caQa98ZTxzzJ7zE4Shn3aHvHvNm8DJe.mAovPevPlUQ.jN7iauCs0qxX_y_syeLIB3rThDXzKbbC_anNEzBezgv4Ji1Yl6PkHMt4gfoNjen0r04FgNEfyI6A9hqFLRVDcJF5rXSEQ5W8jK8lkW2pTy8F6gYe.yh53ueo2E17s8J3ct2bJ1vxOlGs_NlRTGVT.Hg5PajKn3fw.7R_CCwd8XtsUhe8p1.27OnEiiVL2NkGSK5hIAgq1lEEowCSfEsMDJy4gvUdRu9wg88q1Yoprr0rFqEyf2BUgOu0qx7KTJrkc_ZxPJU40ebmsRIdvhnrFVqryjJ84UGd_IF4JH0CHHsyYzU3GkaovEh8RgFxY_.0YU3aRORM6NDtVhmtrU9jZgg6FzjVA2hpn1zQKvmgoPKokvWc3L5ejy9B_JsDJyhGe5wbxEKCiO2REQ6k3EQJjcVPtFz2MUgjnTNVFEV387oNapuxvrh26u1pGC6l8"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9110c45e6c6f59fd';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\/3650279418?__cf_chl_rt_tk=lxv3Ls3X.fip8So8phgMMlRDagi640cGEjD2QYgP6XI-1739407226-1.0.1.1-FLbIsxoFMXUDH7vEAtJw_l0q8GNHsTbFcWJPo0BYM_U" + 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