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-affl5neuv.mit-edu.top/post/5490816237

  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-affl5neuv.mit-edu.top",cType: 'managed',cRay: '910ab2b43b6220c0',cH: 'rOXwk_mLbj18F.nQR_4zxuECJRWCYjG9RAr7ACYqTlA-1739343588-1.2.1.1-kh5xkZC_PFoSz3zyuzFzCtJ47D82z.ALZfOeWCXxpssBRW89zEd0Xzoo3c05AZBe',cUPMDTk: "\/post\/5490816237?__cf_chl_tk=zcjA.4sQwL7PTgKH.aGKb_waA9kB2VGeoXdDMCdNw_I-1739343588-1.0.1.1-Vu.n9tVrugnJE1XFS9.a96m0j9XkPXxqbT1bRibpiow",cFPWv: 'g',cITimeS: '1739343588',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5490816237?__cf_chl_f_tk=zcjA.4sQwL7PTgKH.aGKb_waA9kB2VGeoXdDMCdNw_I-1739343588-1.0.1.1-Vu.n9tVrugnJE1XFS9.a96m0j9XkPXxqbT1bRibpiow",md: "OVtjTwktGHgOq0DAESJDDRG4mhaX.K.9HNUMGi_YOps-1739343588-1.2.1.1-GP9qgrCs21EnMcBM83dzJ8UpVTImI2HyHc9S.BgbRfh6A2CboA4r4ucKZ1_B.s2B_de2Z.c9Hsd_17DXsbwGOQI4jexlZaiGNEWlAthczt._AjdfKbCsLI8s4sXogLQ8CygeLJ20b30ZWfpsmOuug7DhVPGfsvSDEpl67oTxJ5NkjZipgABTDO2nWv7y1DPFfroJMD3Axr7PTVLlEQKFG3Ovr3Be.KHvhlojT.rc4n6Bh1EBhWsMy.bQt_BalDRpTm.BYd8Wy5Mcso6KI8iu3f1l_jiEMRjxtJLUp1cpV_NAbl5msNcLfmcGcZFl63eJx8J7XEKlEb839Z9c8q3BAE35r9zS1A4o2OskAaXfEMLB7DvWjcNxQpOLyeIdTXyFTi2H0eodYTUhSv1yOtcFb14zJXfZoo1N8C3s3GuLyLNQpa0yblAl8dGpR7wlBUahv0sC81V.1_zfQPQf5x_g18UL0K1MQrCku_HFVCVUqSx0NMOG2lqOCsm3BsWLEVr_OgyiuxSYDDgl0lTKZ66sywSDg50jaVnIahj7aO.akYNGb01DPGzg2f6sl9FBP4EduuH0Q_wMojyfod0lGxbo0TrNhsiM_1YPKBPEUs6Y7dN5tIOR8JxJPre4gmNhzgiunScZ575RBijv77udQ3Lch2LT7fn_znySO8YFXL6z1v3168NESeyYcE8SRMbQApQSUWH8CAkyksrI3AAi7w6uL6t_O72mMBKxlaIkBAk5PwiD7uFq572V7V0581sc2wSbzVz1RCq3N5CN_gOhJGl5cJwQxml6pSNCGGtYPnLIMs4MtDgDLiCO4QB1O2hGzFJ3quzkgZkP0FTmPxJ0EVz6d0wj0mZAV67eUlWtYo_Gj1U2awAw05nNDLtN1.m.m2HzxTlaVlOtJZKfuoZjdXA0CUw7smHTnnQzwUOZSbsfzymW8AnVpeuN2NXZD.yFrD9z1nMYy0CFzng5x7H.34ZYuurUWHP2KV788Ln_nIFzHaIyDAqew8xfZKNaZ3ZRwgTmeCy7WSQEH2HPL8MtxCjcSRliv6TLf7hBn5ygKX_FiNBlq6fl6U8GYGvn19Q5DuOCbaCmgwalnz3l9nzF2jLEMAwwUKzmKaxxEXpJlxaUiKGiWMZIRfhyTWpDqRtRII8WI0WT0XqlFxzM4dwTaRN4QXlM19oO3vw.q_WYI0srJLmgtgLvs_tYjmTpUY_rFW7kDNXenpXcmKRjrCYK_.5SGpRIIflYHJFj0GFdbntz_HuPwz3buBguI2trHrEL2nDlhQEgc4hc3PpBCz8YGfEqlVURd6RdkdOZtfc2laX4LjF2_O0gP78__A4nuDu2Zaks7Lgq7LLyl5PNBix6er3clulURdat4_bYgteeQcb8.fzF2z8MQKb6s96NC91rrmGXxPXR1a0qPx7R_BoEBZNhUkQDY3Lgy9QxYCypGvZkQitIj6fz0WYDZ0KjP0IkWiFdC7KOy0efru1Psv4RWuHcTc6cLhJ5P2wOJVLK2rD220yzBy96NWT2DaHul5INanNBQn6Mc4HXW7xxKWhgxsx9rt_lacAfIaWGw4fowAw3M3QTCK8Aj7EY3FIQY34Tawi1j9o9GZ11kmyvBxAaqTMCArNLSHpHgpfuWpAYZqEdBbcTeNOL3ym1hwSThCGjfNBAXe1Nlh0mMesfApgkIPy6mAeQ2y7MFzaqlb5U.zUU6tgP_Yi_.J1Qgzx_m5qW.tQt.2ys0ZODG0C6n9esR4HJsIuCn1pSqnfyMYyCQK4IRZfUYjZkLKOxugJD6en5yWYM1Px14o9RmoUU13OxoQwJ.alKx55lwAxVK2.tmE3BdkbvBCleyY7l3UmOiWHJ_rpALC1Gr1Ql_KszJxEaPdHxNgkC96bj7ICwkbTBKQ._yYm7uC3ZQQ7xKQYqGTEfU2VXRsD2.tAzjyU4_qxghau3RYiuIU25rde4l_RFx1J6LQRV1JbNyFSPMqHvOG7W0e4uq1BhvtpfiYXqXvduf1PpQ_YDIoviH0_aTJBjFhqqBAuVo2MU8MThWJgDyQj6hJGQ1076GJ7IYkcge_LbKc1HE7Gf9FrWwbOAc9dF9fzPAb5PCVRR_xpaVEnb7jkZarMMHAdtBKKJGsckppUI.wR.lDHxZJkf8HTHkZSO15oynSm1d.S44YvolwkWRx02TwNGu5ucykgFqu0zpZal4xd5ZYC2x21_WyVMxTa_WHPiD3B1PL_BIYemgJgf6NqwY1zO",mdrd: "R2_lNOEzPNREBLxVtJtqv3YKis3E78c9hnJtMrQMmBI-1739343588-1.2.1.1-9yExDmXGIMUeZuNghHUWEDzwHouARhoCMZpjwYjaQ1bwRrdTVYxnCGX_wvaZIURCtKisIV.fXE9hGwEtSWiVOkWw8bybSGzDmXqRUaxQ9amqWNoTepqKLUPSIor7dQPnU_I4qBp7KHFzpRUlVMxcxijMbJuPy_C5s_F6x5RlO.cYr4EDRU36Lcck1y794VnzCCs0ApjBBhJTjBcOK29Wm7Shpy_TkmDQVZ..wvxeKI_9bB8jLeUiOsWlXsgzMYt24Fqs49if5CHmVgDWEXLqHLSIChzg7FE6327yh.589wtVEkyPTIupJWFWQnaIKY_EIhIpF0uG9mpJvUENoaGu1CZ4sMV.AjsBOM4_huv5YgN8ZEV_92ufXS21ZNyP8oo0R5dYQCOQ3s5pJU6FUT.H8x37oQcboRLzc4bGZdh8Ae_5pWzPBTXpYcoCPpKiSM_Y0YeWl.DgrfVvfC_Rx16Z0koVZAjjAuzZM93HAmOucY.pUQ7ukHktVvDF_3JDqwVYKIQByn7UYzNH3poWNxLTF1DD4xj9hXdOByi5KA.8vVLIrpipNpTzjSk_7Ltsg0hNAoHIirJ2RCLZIsHqO1tUfEmBFm2vt5s_sW2sLInzT9S6CNA1UBIIRCZFBx3Rex0iZY4sa9Dsh9u3OnPuCXqdSBg.ns6vFRWQ0s5kFEm0kG1xH1PndHriyIM5dGoyvJ796olvtBqjDFGbTDSvSIL.GZhr7vHcggMG6i4aH66eCDxCOp3VI1Uhno8y3N.pBT14z1Y_ACzOqtScusUDoiLv8eB0S19mpTPcslReEzyVdQ0rgIQDUujEDraeo_oc7K1PrpjZavD4AnKJqvKdVCcfH_xA3lcs68wLio9b5JWXqXzMho._lKKYoWXFOl3DS0bRYtZA8RigqF67VBhdBGNWYgMfKy9qps8DRg1qFsiEfxGLGXqy.F8YRZ_B6n3Fud1hQrdYHwhEjv1PVEqLZ6hs833Ija28KdCm.zfNtx2nZe_MRtv0Ywr.VVhdDMBIYknUDDDCpAf_geM2aNH27OfFl03MLIKCTqggByIw1kvaaSCww82xdUIRbM6DMisZcOIY3ZQ7HXoZx1n1andyfDM3a1k2mwRB5OXkaDDPxRnAaGuA7x.tNWDXVvWEDGXrWjR87gMFLeAzj50QdwjAO.RITQm2tlpt4vK4mqVHfF7MbAJBh0AtQWg2PKSpFq7uqQW3rDCRI4ZoOAv4pnSsspRwJ4fGgGyERY9Z_uf1DHyZ8NlnpHIHqjCCdJC1YfikR2hzgA8BlYvrryOe3V80pPv8p656EZg3GON_SfiBstHlsItnMopSrENmkams0HNMDewz8LD4Oq12xItNpzch0p6xIVwCrI.Bx0dgXgNS6U9OSuA3pr4_xBxD_GkRxmCwa4vfgs6PGCQO.3NlWhRAu2P_GwkmEdfSKBkZwaZsNdtTJYGG2Q2ADj_wPv7dw_hY0zSR3EWjIIR1JxLEESf7QqDGX9S7JUNd0ORq1yERhXd_9ih2gxQShllXca49T4BOpsFApHFfcKmbOLuKLktnCIdqpMhrB2_vN0Oh6_TEEgc4l4RpMRVRI6Y0zx75rT8LcgHUPHILAHA0wYi1XhNSnEiUJpoCXspcFsvGnpPvUHWqipJvlu6NhaSPUjYV_72tx2LpVoSRrZY1yYF6vjZmaAln2CPvaTC50ZBBcDVX_D4w380wm4TKIWDbN2Fv2AYOq43cNlsqbooeimKtIvzj7ThSjtv6OIzn5AB91a3TKIL8e72yQfbMbDjdMcIKhzzZ5ru1Xct7F4e_pUX.KaP51S6l6w"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=910ab2b43b6220c0';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\/5490816237?__cf_chl_rt_tk=zcjA.4sQwL7PTgKH.aGKb_waA9kB2VGeoXdDMCdNw_I-1739343588-1.0.1.1-Vu.n9tVrugnJE1XFS9.a96m0j9XkPXxqbT1bRibpiow" + 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