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-affnn3em2.mit-edu.top/post/2608193574

  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,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMiIgaGVpZ2h0PSIzMiIgZmlsbD0ibm9uZSI+PHBhdGggZmlsbD0iI0IyMEYwMyIgZD0iTTE2IDNhMTMgMTMgMCAxIDAgMTMgMTNBMTMuMDE1IDEzLjAxNSAwIDAgMCAxNiAzbTAgMjRhMTEgMTEgMCAxIDEgMTEtMTEgMTEuMDEgMTEuMDEgMCAwIDEtMTEgMTEiLz48cGF0aCBmaWxsPSIjQjIwRjAzIiBkPSJNMTcuMDM4IDE4LjYxNUgxNC44N0wxNC41NjMgOS41aDIuNzgzem0tMS4wODQgMS40MjdxLjY2IDAgMS4wNTcuMzg4LjQwNy4zODkuNDA3Ljk5NCAwIC41OTYtLjQwNy45ODQtLjM5Ny4zOS0xLjA1Ny4zODktLjY1IDAtMS4wNTYtLjM4OS0uMzk4LS4zODktLjM5OC0uOTg0IDAtLjU5Ny4zOTgtLjk4NS40MDYtLjM5NyAxLjA1Ni0uMzk3Ii8+PC9zdmc+);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-affnn3em2.mit-edu.top",cType: 'managed',cRay: '90f3b14fdb76177f',cH: 'Np8gOl7yzz59npKnvgCs5rQf6SNujtGqkPiwia8mdbI-1739102359-1.2.1.1-zbhXOrHDRyK49Om1bPUUo60rChycMXW6yi7eldX5vUDW4w_B1rqyNh.iaT_rQ_Km',cUPMDTk: "\/post\/2608193574?__cf_chl_tk=CFVLm9EtGgi7b6pZ5GN3CcSJnOAu5VKGy65d7Jo7MB8-1739102359-1.0.1.1-DMJBM5BS5PQCXVJYDWofJLiFvtiuqovS4DLw.4y0XUY",cFPWv: 'g',cITimeS: '1739102359',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/2608193574?__cf_chl_f_tk=CFVLm9EtGgi7b6pZ5GN3CcSJnOAu5VKGy65d7Jo7MB8-1739102359-1.0.1.1-DMJBM5BS5PQCXVJYDWofJLiFvtiuqovS4DLw.4y0XUY",md: "wcswqdOREcB7Seycxu5ztomkvgeL_0AhsjtwXLi2_.Q-1739102359-1.2.1.1-r.D4O08YUgVeJeB2Fz0tYUZKyy4SdySRuEv_47.dqxMS3GN24Dg85E_L_ZIN7TS6h0O5PV.pIJDpqtm.M4E0V17nUtWd8wp3B_j3HyGRDv.xG.IHvWixhPuvp13EjOI.4RA22TOIRiZAq7GsWpx4idpGhJp0zssTnL9zVG6T0aCzGiXreqw9a2LOu8wNQ6YvZgtAKO6qNehkpSk5xp1ohHqO0pBVODr0imsiN.MQ7HfPqLRspnFW1OBVjV__Ffcex7Gb1euIMKzY67kpwCpOGdYC7gth4d_ivMj_oIOlNOS9TqfAubMDXpkb6DAdGma25z3vo_Evn8AbrslPxFHfX2QK3AdpbgqZIimvTnJjJ_.P3Z8nG4ZH2cEEafvrKnnf9fX_fC.Xs8dJ621EXh0pcGABKWtDXuiddk1RwwRLkw8cN1LAL_gvxuiYGzd5N8MxjqSwjxU5S1POsDCdg.dZxCL3MxRCFW.6vd6VIU_pZtjWTpE.MEc0q6Yr7g_r3YpqY9oCP2u6txdWcKpgt5mVkJZKfhKM09anfH.2KAumxeP.2a0kYV4E7K9tfRilVzz3f7.GGtVa4VW__QFTp2ZThJ7DadD7a977UwBZrxI8VHdWwIb_h0smv8BQnXh0QndI3chfjlBD.m.o.sDnumgo2d2HoI4.bUVE6U9UbiSlstUrI7jVGasEzvbgcczxvoBpiTlE0DzdSI8O7PA1RTe2haQBQ1mGgyvDZfRQOJH3nSOf_.OOx.yA2Hy9N27I24huWDb_a64CHu4rNJyQo.GY90PHnHFlQYeAajoIXLqjMGErznRiYUJCFLarN.lZVwU0tsRj3gY4XH4HihDCm78Rgw9LFBQ9fubGLgg5JqkIl7kS5fZBgi_8kzj4PN4zJlX_on._8LM.gGXXYVq6Xl909wLDcWSfkXZrxc4E4iIDLDasHF1C3lZTqZBRG304zKhKil9Nwr1ODNy3P1sjwiL2y.EYOWagjQjOJXedkMtD1opY6qHlQL4XSx0IvwGLhkpPkroVTr3ePw_nrQvtSuQk4XxG5CqE1KOgiLJ5nX45tPgBRhu9ylvyPGlKDra.6aCB_cY_1Oy42hPu9Y8RuxESqzymOxZn9vO_._qOaz9CB4iLDl0AabxxnRrhIEqA3pmiKOrwkDqtPqBr2zfDEn6F87407QuZaB4..LN_wArz7NVFgWzmM7i09H82GD.8inN6gGecNNJfb.breeM6M2StpQSU1uCLE1UnG7xRZgkhB3DqbHzf3G9zZVOXJhtHreNZgp8UllS12JCTRABTMKzyv8tbx_cfVB22Nqe_wnCbX6alKOzELgz3XI5Ia96.SjfZnHX5_7ea4Tha85yt1nNsDJKIOOViFbt9JWVNQj.acovMUTVxHX17296u.p9ZYoGRw5eA5A_.iExAPKryfcnlhoYfUkbY81we35NGw3Rt1RRnsf0n8qam_JfeGmyO5UNyU1EgK7bo.xvqnE1xbC.A4y9skeagQbS6.dia0rzeGQIeGfLQ5Q2HS4pWQCcQrnlGgCa45jNuSBGCddNkao0l8zbt5_XMLfWbBCk1NjYsYGNuGWDMW7GB9AxtbLrwxlM9XcLHRHISCtnedWCmpkgv4Ph_T5cmOgAqSPuVDG3l7E2L0yzUY0HzYbBhXnA5.ZmahGuR5tAqIfAwhniPVkBclrYQkh9ZEkIy5n1wJk7Sfv6D82rqCTRkyPoFevnG1x9rPYpcE73lW_pRGiufiR1ELevjgErHw7iD_sKtpNkdipGCqk62mcjXQ30l2Ny9TPx2PxoPlJBexlh2SfD8jsQlsDUu2REQTSoUsLs.xrCqioTzUMipr_e33MGu3IagLhexQkyOcn63OpIFWyhiXw18Nw__m5UCi9qeN5KKKYvBpQISaGK7dhmX6ddhjONvhVmF_DwfFciEMH3xCUyx6ZgA_OAsOT8eauCWrxeyHmhpV81N9VBmKjeFF1a5fdv5mCdTwA8sS9yuOkhRB2j.hTUMbWgPrd9P74ZUu9mBU2yMczhwWooFILWM4ywkHhpopu.mcpX6K8970.EEugYrtL.ejs7IqJzeO4hn.jvp7zyKDOxBWk7SMWcuPnNjTC0RKM2EClRK6TY_gkwBDj6E9KGpcEmhpu4TaO7l0ROkPX5jr8G_FCGrwbdR3tI.XOwLZy9VzaqR7EUr6H4dXeJxcre9DkoewR4Ro5xgQD.Anf37tBHK.9vv9kYVor_PpG8LK3w7",mdrd: "ydZ2tL1oD65QwTmah9Hj2TE97UD7G1FXWJGNA49K3dI-1739102359-1.2.1.1-P.i2UNbCf33v7_ZtfHeq30ffzF5In0G1s2tj0fwVgbZ1WMvb2P3oru9x_u7S5vWtbTFyYsLM10M1saU69O3546P.Bd2mWYLIE1ghXmP_bw4JtViLJmGMcOBHFFGNMQOraK1iUU5uFAN1me5F6kK1eB_QgKjGqM9mZFtWoo7Wcag2rbWrhoXevEbn0_vPecrXEEVMkYoickoab6iMMd0.syoDvQqhBL3.QJq.0.BP5e.6y4Edu4.rfGngRA6IZ7YNm6135K_KC7nGFVQm4cWgrI2pt_cEKfvubIZy1uChVykaQaIFDrL0gfNamqGkg_7m7EoRKPuvdvhVP5nmTtVumv3zoCzW8xlIaCS36YK6R4N6BKqerTFPrk3ETYhWf8J9AWtnNJgJOdHBjuUt2InhkkWb2UDJSI46s87uEWdZa7qZOh3fGnRkXwX2V.MyQW9UYqAaolUtmAnRZl6ngpqaG8qksjDv2Mp9NVZjpLhBMmKODPz8ng1j44Thr4K18IlY8NRc1QXH_SRZZWEtIv0XyM5192ERLQr1GN3FWHnfFmwXPwyAMjdKRiMubOLLTqLx7ByqEy52zc7JYpwqkXpQMkXsHeE6qRTD_uqgEonpcQmWH.ulvN.ux_GkIkBr8ohkkmWJIX2J8.Dy3.1yRLcUafp78EsgfJkpv6EyXUBGSwXthTmocsSEar5iuxAjJVwDLkkNvn3ufzKD_aJRtYYdNvrC3CZxQ.ToIiTLCl95zzwLs3RmQeMWByYUkmNjFAQ2Gsbm.0hChrUSCRHtVHLyUY3y.7YJRdjWJYceR24pL13uyWst8mg.o7dJQetP5DjmdX0tbdIcLMjIitCgQWTtEMEA1wjVapdm8tdMr3SK6uUeYTTIi9Kyb4dg9pnOGbdsH6AD3zRnmNyMmBSMQyO4hlmdfZLVNFOdRxQahby7datYR6S0G7CCsn_8fTnNRUoHJRAybGfG6sBIDAJvwtXPOF2j1zYCvf0Tu9eCErYSlXsbDR3JXPsY4A6rXxLQT_wmze.4Ti_SY8KkhZK5BtN4JuGByTip1S1NsMIbWCmcFnCiRf4v7okFZto_N19GZXn8lkjJIwoCEfW1dniLbbpfonf6DxgMNJzqiXF0p8sP6EdRX3TpnC4ZJUIg3nfMP109mhCyZMzFXPCACOv9nfdjlRU.TM_e2W2n0MLqtH_vcz8aa967jDsEJaGm9iu1WvJ4aA5RS8DrRdb6jzdJzm_l50SOiCFU7bQHuh0HYBxXzVx8VOrGpxywF0HRO8Q.mhbrg1gjQ_3Lz1wpsjYNYYXo7hxq.Qp9YFUgq8Bc8OpxHJjaYdeIltlGUFCrpRMmEwv1vX.D3rInuo9XvTE22hEX.XqISUs3PoQfxx_FQjwqXJtYkGtdVI0pNXeI7t6XRByEsjifTL.NGnajIjS_f0vUL.IZSitIZ93pfzZN0pytnVVqIGB.oKAcUtBkvtpmDyPwthyMMt.uOnM45Y_9qJEpbFkWp3JINeNVb7PvHMmZ6DQSmjdtYgoI3ChE3VtYQptZTe2ulZvPhEGjbuq7yozs90_pejgOdbbdXXXFvSR_saqfoedWIHUrZnLUe3n2EsW0EyZjmPrU_Za0gsKvFm2zlr9mBfD74i3h6z2cXnVNpZbaLFSIi5FbV_KJ72tyPcPtnKtpNiuSNRF9U7hFmra.FIK7fUkk0VzF9K1.oz3lMksE3iarD_7ehRX._NfHh2xCNNUKse3Av8XWq2fY1CHN40c407UI8d3dAgS0O.dO7KojpbpubbUYJ.N8.Yhd59dlJCWvVk75kURGoZzZX7J6Vg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3b14fdb76177f';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\/2608193574?__cf_chl_rt_tk=CFVLm9EtGgi7b6pZ5GN3CcSJnOAu5VKGy65d7Jo7MB8-1739102359-1.0.1.1-DMJBM5BS5PQCXVJYDWofJLiFvtiuqovS4DLw.4y0XUY" + 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