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-afff998cf.mit-edu.top/post/0793412856

  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-afff998cf.mit-edu.top",cType: 'managed',cRay: '90f43ad71bcb8290',cH: 'hugMJw2W5w8czhE_XkOn27Sxd6b0v6i8IXEp4Z7oKKM-1739107992-1.2.1.1-XVXKe.01L3.pS5Un3yO9upa3N6rBQABrMpd_KrEGb.lFX73Hy4DIPf2bJHVqhixt',cUPMDTk: "\/post\/0793412856?__cf_chl_tk=pRza6Qu.t1swj8ryDX4aPLb32Na8Xv4DseOBNDIk3CE-1739107992-1.0.1.1-treci9tycMy1VmhpvX4SWMbwxBYQ936lYBrv0XPo1CI",cFPWv: 'g',cITimeS: '1739107992',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0793412856?__cf_chl_f_tk=pRza6Qu.t1swj8ryDX4aPLb32Na8Xv4DseOBNDIk3CE-1739107992-1.0.1.1-treci9tycMy1VmhpvX4SWMbwxBYQ936lYBrv0XPo1CI",md: "8kSKroTsGh_CXdU_FSxZSO4oYWpQY0FyHkszsM4ksQg-1739107992-1.2.1.1-3UDc9GeTbcapdXTuVh0WZCGOZOhZrqCP7k91xmwZ7sFAHRsHsUg.9p6S9andK_jVUjgHAqlVHG3BPq7a79RVdLgJDDSmvv0MUumyh3NKugvsVNBYFL62A37MDkSLZcPXTzIsHUwl5jNIE7a1xSdwFYVpCaXNXao3PxG.dbWKvTlCrd.lgckZqONN4UITSGGGnDYD9GPjj6VJAgA9eMPbCXBIuz9Nz.W9XKkpp9kJauNvpJpwlkHup_rgpMIYPECsy3rYZIMJOfumRpjc7ZG7z5dTgIFD4FQRceg_tSI.GWlCU_8ijKNuM5.Fv4sWL31PqZ3aDfQag8xeA7JTc3WBemYn3bLS1mgNXeFBSqVkIGWTC00eeOoEPrr0BZAn8n1FludoQOqzq2GsiclfQzxSXn2a_0s8EX_wUpyhpd4Hu8sYUeJIZ9spuMygVKuL8FyNoP57mfxukm5_zTkwYOZT81dSRzO0hZz72ZD0aq6st9ov8Jx02HnkLul31dKah.Ey4ghnihtypGGEEpaLnQSQXTSm_XDvVTxbmO8uDFXnYKzAjWtlM4dKHEawrcy74tWpkJlHGuwScUBqETYtnfsGOqfz_KTgZsMtI3_xl3q_vpr4eoVePtdkdvfMUk4JqWQVYGDKbkopECwukUWh_VD2b2JYDABzI.uy_ar0S6TxZutD0mD2ao6BxYBhWwxAcU6m6IZa3D.H6Ozvc4c6bYM6HMJXgZPm3lgGNt_.NUBL2BNjDMPXxpCM08i4q1fFmVMfzMSV22lLBFDWOA2nOhQu4eeUTA8ozGKC56dOxI5jeMQScU8Tr44XsSdkQxT59_PzXR1k0RCyUjjNLmJwgSACz6f4FPUk3CwX3Wzjl6v3NZdjZ2zydHQW7rNKT9OWshbZhlfvjJxnhS4_cDDsvjAqtPOl7jwCRS4wmCloUST3Uo_mPhGV8L3k5b8OOTFzvBE_._xHWerUC_Lk0M9WAydp_dZcFywWZfAqxekf8GGF3iVL8oHTTjiTKiMyNfjTVue8jH78JvMhIdGc2B7BphHBDmrZGOSSttHjMZZheTfp7YJ8LYcCvr46Btdv77G6kbEj9YqNAqgEgjI319UClkSG9nJOgg_yxZbKgQ.Dl6_nQs1.3Oz_Yts42AGLjWH7QiBQjyoroks1FP5N0veAePNGL1VVI8uFCigRQhG_OE7k7eJP_ipkHeyzFt_YiZQWkm9_C.WOHVdoWSlSNzcPSmrdz62K0kBF3Fv_k.4hDjrq5SK7dnoQ84b6DQ6y06sggHFaCf_dZI.utffb055HogfGTOW6vklxSQQiaucoiznvbDKP1UeLD_aOJzYxVupcbMENR9ed6ahFdAFRmuUmqOweSnMyBrvSJvGfinMrzdwZrDG5WgfcSKXO61uZGl.qc9p4smt_xhIBb7Sl01PZuLqaS2IOnPvWcv2NYMUqal6WAlj68U94LB_MS_a_vGlpJ3H_S25Ge.N5eQgYrG23qnsgFO1QqXw0Sxd1e.lXTEEhQ4NLMCadI6VzFktOavhqo8zH1ivYu3mbZvatDxvSFCIt85U.RQojQg8guPCPVVsAPEdqZMNsjg0afJfyAFak.ikAL5swLPn9OT_xnitNPbNZRNkiZYETThAsxqwAfS45JOmZeTOR.kQYvGsqeFaajpN2WToPQyMPhWel9bWHNHofLbYjLTGV8zGkTgPS3CVEUzljXqL8W3V7sCPYjGJkcZrzoFd9iH8B5FDCivnfq.Vq0VSva5Ds.ijwLKnvWLTSC20tvvFOhBILXCS88COazJ9DaUzqi5Or0ybRqqJjDg36QFIGndMy0m0itjBtI_zPBp.PhglEylAYKpGX2wv_LJxe05kzsgdn1hVMm3aJrywcCeUcBwTIfWC4_RrX7pRFCsyeiVVb4Gj5APHylpHjVVKLPxq7pQI1L.onZClI7ZTgURZugWLvwEMzVEUcawfujbmjpHO.Z7SXQzfq6YHQm.Ia1kdCbTmyZk9x7BtYnfSqzVM5KV78Fsd887rZjo_SMmYRiKXEktdoUT43BEtJItmjr3dnUKmIMlUwcFm3oLHUdxTFdzsAxVyOFmx_pn1oTdwkmlmp93dQB2tKnKMZuov_eYHia2ezbGbm.J0fQYDEvEtDJkZhbia3xJyvtsWk4KzkrDrRGZRXHdiBp2uAnHC1cnaVNzvZDoBnATb.6JlWvn1JNotRwKKe6Xwkv4cvsXUSeqzjDWHWhbP2EiJaLqvK",mdrd: "yeE_Kj.mvCdcLvzfoZ7b8E_6rQllmOppRJxNxWpuD.I-1739107992-1.2.1.1-l2vY2kJYyycAzk6UN09G2cKJpZifoLgtui8Xad3nkPl4LU3Opmxabx3BLG5e1UE29FKhqXsx1CM59.jabHYj1Eewp8c6R3o4BC2BJbUVFliT2iLOHxCfZHBzONgUIyPm3EAZT6HLl6yucJrD7MoRBlGzZgZ_5gRLLxOYQUjQXrX.fIxMTmYVhBeom.OHuh0AKCt_1jqh11OlV5.yJuoiTtJ6hMBJChOaLelft_96IN_6.qB8mQp.0t9jCNlauvalMZV1PiYf2tjnTD9iKr8f9vv10WqS2cJ8x.47DAfP4aEtXjyJGk.2M4eCTQdhVJGf68AjqA6H9AmscoYJPHGJSQoR1Kq7maOHkNzAB8qBe4D0aapKvVuGtELZq3K0acQdqVYnHZFy0tt94IZLO1KY0JX8vNhE5uuDQ0WYYwb29XezmuozWCULU0mc6Zw3Vb2fCJgUMST7frUB6vLxMLzZuob3g1_1HmYfwg0O5djXb3SiIoms9a4g.QP0TsXwmoY9S.qied.mH3IMnweQuOraxrB9W4cTJtcLAFcmcFM0Ob76mUe4or5.c3xmlGqrGjQEnVPNFXcjA0pxa1DGHnm7T1XInM3ThtBxjZSOhv6XQr00ldkz4gI9lPZFTnpU8CTXnmqQsxvxP9XarG09SY1Q9siWjc3iJEZVFAv3IVCkh2UJof2kCh4jQpVU7auwk5YSM9bKlEbs5pheAUVWcrBx0c4ctEM007Gtj.OhifF1smiUuXxt1sjSDAj.RmIJRWNtO_P3diWOAqsukzhNowba0MWv.6T65lC0KxpagBjTzPBbHlq94pKu13hYq_585NNfyG4zBijHRY42Lz_NP5kaKEwzLZPnDPvEQKCZfje3q2L0eeQPS6ZI3BwuOKLsMJz5vPv1UE6iQqrLHop7InBuwXPCqhp4V8KZldLDM4lbdEe3OYNeAC.p8wKAZTjoMW4sZVGcpOs7ueoGx6bZuqNoDYL90V0Y6J2GDvQ8qo68789xlS8PDWULzUav3I9ZILRqmkpqwBKESUoXx_c85yXXtaIRq1GUMvlVHOg1_nrVV..cG4zRacYROAQEkMP7F3xHDZ.ccQlOOm4obUATJo0p.18WxedD3pOEBRy7Z.L4SgAPcDo53bS3ACIJiIpApz8mwFNmd6mWwcTx5wSf3GKqjkfFy1vXBtn8SOts8eLVebqyfltGkccQZ0TII5y9QI4TjYIZ2Ho52uUAqrkY4hjfDJxehfMZ2NfeThuRURNZ9yexTDV3tAqRBVq0RdHWiui2VR0bl5qvzGWicxxAt0xLruvzUrn6ddzgZQxS.q0LU5dat5xuolKZVe7oa1gHV8AsS_UOwJB7ug9K_Mpv0ZYQleOAznI2Ka7sTZNSqzB2VjhJjP9xgItYi1D.NNpDyVefJHBbcO35afoiQ6nmF6h3Z0mPhc6taxCY_wZREqIVGxARsA2c8vh4.PNMVqOf9GbnYBFS6DoxS3YL_0mQEc1pxZolwSOtm48eJVMAtvk9u79ThJdS.0y.0XT6sadQvgF7BU6oKURQSlqs_uK.hVbqs0DQI.GtfNd4EJKGfZKgy0Pji_bVUlDSzb4EYQ_7pH5TymqibEBL1NUSYAVQ_LAcqTO6eG7H4n8YdgQWRdFvdmThUyWJptGOW7klOH3EnUtwQsjrciQDrLg6roCE197xZIReOm6GGNR4C8g2syj1Vr6KJAOyLGNELVeX46vfeEzFXJuZtbSJtmb4ewC2BlLykJI1F8V.I8CpbgK857KFdj3OLk2zarEW9pRU87CsScQ_2FP4A.OLV4JOtlRCXmjELg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f43ad71bcb8290';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\/0793412856?__cf_chl_rt_tk=pRza6Qu.t1swj8ryDX4aPLb32Na8Xv4DseOBNDIk3CE-1739107992-1.0.1.1-treci9tycMy1VmhpvX4SWMbwxBYQ936lYBrv0XPo1CI" + 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