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-289637062291.mit-edu.top/post/1248759063

  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-289637062291.mit-edu.top",cType: 'managed',cRay: '9109dc3048b307f0',cH: '7kggPjj7oDHIAmPQHjW.srjW.1zFM76tNfU6ZKe_9hQ-1739334801-1.2.1.1-qZ2pECbWVwiitSD4ZuUTveU6z1nkIJmoeXWais2qqvcZv4JR_thgxXMjwrm1.Bsg',cUPMDTk: "\/post\/1248759063?__cf_chl_tk=FHpwDkgt_lIAoT8n_j2O99x4vQefy0ru.ClxAI8xIw0-1739334801-1.0.1.1-oBK7WRv4EJ1dqy5HfDg2w2ArurDTnwUIf_oDa3HnD7s",cFPWv: 'g',cITimeS: '1739334801',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1248759063?__cf_chl_f_tk=FHpwDkgt_lIAoT8n_j2O99x4vQefy0ru.ClxAI8xIw0-1739334801-1.0.1.1-oBK7WRv4EJ1dqy5HfDg2w2ArurDTnwUIf_oDa3HnD7s",md: "2.ZJgr0YYF1IF3zgZjIHGgAC0v0iUub1Nd2Bxg.D_fE-1739334801-1.2.1.1-2MeL6doBOiJ.HOSM7H5Rz3Ynzi87SPt.Oj.9Y7qeWqrIpSXYgwqj1p9t_9yMuxwSPayEEktkFMq9Ctcsidsdo7yL2OYFlsLOZs8.LW7loBNYt1xlFPhUNpvnIwezwT9g2VIGH6JzMNULbRWt3HBbU_H_ye_ow3O78ENOCExm4vDwSS8xKOqFTzq15PZnWPXZ3Jj1oJEOjAaq_zogU.suhkxEmsylJvM2pjswvElz4Ni1OQ5Tqasbrz5.sSt3d.WwbQjZSOZNrd4lKoC3XVswSoJL5lwCKvY27gmHmPjH2mvJJa3Ypzw1vUtTz2b5q8HaAmENz0TGWkeihnjstdp9RCRfaaYVKucZ.AclPcwUJuGAmvjiN7LWlkVgDQeQpwwzyiQXJeAi0c2G254ju6p05QS3nThU55bdRN..q7WqIaYCLkWfIlEVG4aVdMNfZHUYtfXqZ_BSEjU4om5Nd8jVkeZ.f_kUeiJnQ5PPGS.Cx3ZGKkyhXT9gXb8Z3K2.VBd83F.bfJPxF6vn7XOk09lhQUI0OYzHp19UN6XufTpIjy7O2xwqDAe7ZeLfLfuMi3gpPB0oi.1mWr2aNmYvhiH9RskWg5EQDVA554i0Z5uMC0ZuAj_bR8UBedgbebTDclpFEm9HPL8sfon4rNFhOEXvr6i0atpW9dWXmrNmaVzhY2EbsrfkZwSm1oIXQNt9D2niIQX6vl.vWVMJ7uwRCCoBA2.Gale6YZZcq0.ivum0f52HIGC_q5CX39t3urxQQ1nLqfmc7p8_fhPffnFHUd4ZmoWRAqjnxPpRvH0..PttOFy9nTwhP6f1pNtLnTQ3FZpFZUkGQ.6UlrUiWm26icWIK2BK0xu.9J0FhRPCmuBPSXkqUcvF2DHFqtU3ETmeDP3nKj9UoHH7mQISZqwm7L7NK9i7P3p_so.o7dC5Wx9uJyE8ABq21W8tirN2W2Vvvy82lkJnCcfU6fU2pgc3ITCFcV4gdCdXH9f3LPEQiXbrrVvXb1BBZ0zwPSGUGsCAUBhr9.RnznF8upG4krxhqvMNjXzVXscEw1P8SDKWL0k0N142HGAy08d3tx6kRtIdnlwFw8WTMeBRWkqFRLbDYswVLbzPIc9kptYaYbFfRiyqPlOoThlGaJtPHzSuugpcYP.9135gAQJP0gunuaJwgHLAq4U94onTTUtFK4hXZz2Z4lHY9yLcXzTscjHZzWTCsUL.NM5vrueZPhzx18EL4PKhqaK.a0E5sX1Fnbv0P4KfbCX374Vr5JwVVawj421RJR8Xhc_GX321x9P_ZeFio6Lsb8tEvYQnvMQZlA0DYGFNAhOFd1IxBfYAClnU15sgGLqk_afl1dX1AqgFe1eQyrBD.YQGUPwF.w_AGnuBJUu.a2Nk31Dp3fAONE4jMYa.ilIou4ISqIMsLW.WPxoOo6uWI1KElcCPXdb7n1Itqj3Bl_yM809aBPJEGe953c_pmEhf3wt1SXhZVgTH.1YMpN.WdFAueZx0dMIfSLueHea1f5h4lLuLykYtJx1L2TUODoCKtvTezvZ3DyRNamfmi3Ys0Dy9TY3UM.XMdsn5p85x3iP70d.a_I1NCVhcC5IypqokhTGjtF99p1Gb1VVxhxXouwwEVzrt3_67ptOyLR4CB9y9ke2RV_1Pcfr4BumXSuOd_fYjtWP3ZuUNlw2VLRfQ2laKXmFcZXYruwaydAtoS7A7U1gIuCh4C0bP4iZqL2_wWfz6x4V8l3_xiBLwGZgV91M7.a4dWk8pL7sPV.Bd1ApzGFdco8efJzHBoGfm3YcAO3S2ybW.M_y0kjUzVE47VnXX0wsxE6SkC0Lh1LYri45IrSX.9KmCY39W10u1.J8vPpWFelf7yhspu6Ho1RZEJUP8okbEM6WnWk3u4HdGx73_nd3MAqaVZCh11pbUBczJexmK9VMpRGvqxyU6vrjKxK2ebX8eNeUYgdoleP_33Aa4V0UMxyqsIu4rb9eFwbjPdKmDyfX3380ofYaP881gqhQy1z3ijV71Vx4k4mIJRXobQaG7HaXfcmljxm5yuel257ZIThsvJaYBOb7MPTs3c_dKnqcJKzSPpcdnjTJnipwrh5MiRRuNwLuM0B36Zb5refaGbhTaTwlQ1GOQFEanlfX.XEsE9VE30R0wBbh9e.hNgGqtVgg7Oa0awwprWyKZb4WApJFEdyPDOPF44bOovrSCQcJI4zQ3YN3cxbqXzsKtDhGKJcCabw2ixjZXvlGY",mdrd: "_dhlUELK1BWxG1o3HM2LdXWylJvWmDe6g5C_WORoC90-1739334801-1.2.1.1-3kJk8GVgFS7nj6igH7QUAKgMs4KA3M.v6SBbEdZEUXKTpHSB4k2f6tREORDvBQry8t3mg7QaShdL4cyGF7T_fGwkmm0qU_v7iD42dqQ.TP6m2ZBkHlj5n3BjHA3pOoD64wAmJwd7XQiuHPUwHkQ7HYpj1aGAzBSafaxdVNC4BRXhhP0ncaJujF2LQadyVLM7ISsi77CmpP4qbVpwnyyvJLMsxvujFRJ5tP1gwtvyJpyVgeZRDRm3PvckNT1MAyx44rQH4kj8D37z4J9YAk3qbnl3gzilat7NDeIkD_E5HMHNZgRQNEXkBVx6PnL2Hq0UD5WEgyMOHw2c4zgw_q.jAKb2wAm36y7f0ybrdXlC0hJYnbAJ9KmA5z5knhHps09DLED.ohsXt7nAmYUOXnGnBH3eyIl_pW5l5oOYPTkG21hdmeTSGKBTaH.9GEtR2D00Gq_15nSaPugrhOGh11D1d0vWXcr5WZAxzi8_iOQObPdC6jgqlnSaTiOVKL30NWQd0FfTg7M6ML3Ft5lhPqDhVocjCef4CsbjhQmb3en1NLA2D0Xs8.Y_kLUuWCS8Szm8L8UA5Ud7HdWT0ADulhNqt7EldUcu19vhb8Fsx7KVsEoTyMXF_RVHVmDHfSqxuqJkTcQ1RlDEVCg8rUcam5Duu9Nk1E1CEWCuEFGXoIfWd_oc4.CBsdld5pD6NsmSs6vRvnQohti9n6AjO.Ct.tX7wYaOnl7AMwL5fxR299vMUaRTFelRFf1vTTZq90TbRCcRHE.gwNP6OoOmmlCHOuW5UBDyG0SJVVtMbf.puDye.5P48JsrbBmdyNG27egdhu7Zj_xZZIpQeHw1eNbk3ufKP5gEi5BbSP91Pxp8VAihazLP6Pk9mlDTvV1W4dUaQ5gkjf7B4iCto0T9E3U4ONTHpj8WbH8unh5ngCRjbnpMUeXKX3YekK2AocPuZaSY7gC5y0bhJaNWw0Oa5fbr3vg.sd_kadnfu6IMGcLe3Kg.TWFBxMQFrAZIzRkPBwvXesuRNs7.lVS9U1DcVVifKY9DW8pJ115zScCedtjOwBaJWtx12zlvDmOHlfS8O2yvANYBQzjfMp80Jp3AhBmMjt_Q84Wdgnd5I9EMxBTjax.GiABWstFtLlu1_xXZLS7JhW5.gGc0yixumU2OM9.LkJGTyb9iK_DXBfPK4N6Oddi5e1gPYgMERfww5kjUnLsZsySOoVhVjXzQ3ruNDPDBDLN7Er4ogCdgKNC8yXoiJ9UEZIdAtQi1po1n7zcAyxhJDlcOv.A_vAFaT2_AitpIvc2sg44KbtDqM4mqqxhDwyGB4IILF684zqNWQSD7iVfIspNYKQt8SnKKuw0M20Pe3jcb.AheCJkBphBZbR9qaC9j4K3uDrX3LEUcSLCHzEq8s9EcCOfTcTsv_hUnGXTSajN7ebcWxCax8nC3SiN2pouzYCcJA3Xg6X2mrGiT1Ubk4G.QcHSPYMJ2lm5AGP0E.f80kiBp7tXQG7Xq670e8qPDiZT.gbyyCf_recM02pNUv.fa69EsFhbpwru3SSqkpx0vlp3fLK_Y1C0yOnSKRfTXyc5D00f.87_LJKoVqW26fq9dwu7xyHS57YmIDy3s0DmOJzWwyykRSxIZke2qOt66wdTpKkLAskDLAhXc841q9TN8CeaP.UbHS2VM7dHram4_YbqmfwtZylgpMFjU.WYNfZ3K1Z9G0lNTKonAxqhQIlnK9QyoshB6NA2hTdNjwagEatCqEskMWmrH1CvSniKi72Gk2Ps4VN7PwptuO3QYS8P_fqOPBmiJGberhNAqS8I6pkUUFYGjf6JicF8CAQbJoGE"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9109dc3048b307f0';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\/1248759063?__cf_chl_rt_tk=FHpwDkgt_lIAoT8n_j2O99x4vQefy0ru.ClxAI8xIw0-1739334801-1.0.1.1-oBK7WRv4EJ1dqy5HfDg2w2ArurDTnwUIf_oDa3HnD7s" + 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