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-aff5z4won.mit-edu.top/post/5867903124

  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="360"></head><body><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-aff5z4won.mit-edu.top",cType: 'managed',cRay: '95b6edeb9f6edfcf',cH: 'J.f5WxSsdkLv1JPlua7La0XItWdjthenRjKuvu_.HgE-1751886982-1.2.1.1-FZ7FbrJeRD9Ya02gOD2McmdRPyoNY4buYEVqaSfaVttN660KCA0e_o3FjzO7aME4',cUPMDTk: "\/post\/5867903124?__cf_chl_tk=BUJsyG1yeaH_Zqpa2NRS9nnMF_8ERAtfUtaFU91T.5w-1751886982-1.0.1.1-JfocVoofeB1uidbmzy3w.uHOiBHvHiyPHX1J4AmWCjc",cFPWv: 'b',cITimeS: '1751886982',cTplC: 0,cTplV: 5,cTplB: 'cf',fa: "\/post\/5867903124?__cf_chl_f_tk=BUJsyG1yeaH_Zqpa2NRS9nnMF_8ERAtfUtaFU91T.5w-1751886982-1.0.1.1-JfocVoofeB1uidbmzy3w.uHOiBHvHiyPHX1J4AmWCjc",md: "xNPRDHeA2U1_orHz_1qMn7TYPymFhXa6Bg97K0nXkZ0-1751886982-1.2.1.1-25abzTtBYJe7tEm7qH4LsS6UDCSrOj1eMtDhl2fAje6k9XuSU0cmcParMBGGkW0OGzFnPfCIWfcfON2LSDvu_eBH3RYD7HjBehNnk4ndUhbIFHgLGMNZfIrcMz_A4zj7J6sCteZiYvw2Eey5Qxdmj010fLAXtC5RI4bESeWebB0CYc8noVm0eDdrASQ3yGDsUxlkH91GCEig_Yrf2uW.L1Kl59HtHTV7AfY96PHG9poxd.SJCT2TZ5gsOJBu.1bf5tspaMGi8SO5R3sv4QG1QYfPlRkWazfgW4twXKcQPITfPv92nK8w_gxYAFiT6Boo5xv1zs_nMIf4uS7g64IKL7sjHaVaeGdE11cHhHE5KFu2exil_yLvGgYgbbs.6MlsZQ23q678n.ARa6dpNYVhyLUeSZDZdOWcGRvmgp3MJEZP57XRMus8pDrDF7vQUwvZmmv2dZ7V_A6Yl78Rb6mocspNQ_FpQP1UrrHlOzBoDNjG1d7ViQrQ827OmOAk.P3._WHqZgZ9LDjxNB5kge6SEbSpeuzxiOlrEyW6e3eT_eeWAO_VUL9pU6DGOaNaiZVUTHIczxlWw_lcJV4aKPe4sbUg2DPdkdSLJAsxp7Rm8dQ2BAU6gyIJKSCMCZqiAH093KJwM15k53pJayPFxlDuhH7hkiZ9PD8KGztSMXVHLw.9jlF2mw52zV_WW4gvt0MR789auC3aiXeAu2keHXY9TLetK9V_4FzRRJMgiEHQmN1h6gY62Asbs4HU9YpUn7JcndM_pCqf7wES3Mk_ohweIy9T2LyrGIJch8lu0gHk83pDOIeKCMbuGISkJYS1djRK82qjFgkANczfocPBeusIDA",mdrd: "lw4LkbHJ9XxGshewdn0ZPKAVU6FWYOBCqMkll0R7jCw-1751886982-1.2.1.1-vFR_q3IVB3tn06SLysS.bPEAHOXH7J6s4TWByTbNsj8OtJFau7LmiRmBWGGL2p4uxPWyN1SiPBFlcCnT5VV_rRpcv77QZ8J6OyAvvPhcGgRSTdbkJSYRXrh5xrJ_WMmPsw_yNV0wAQe7MnfPmigQWWSg9n8YgTFhhQhnTDTJrJ5csm3dDmDEep8oWjBJCTWWM1VpGOFiON1ygB8lUJUSE2Gng2PKWFnpR7EZ5YSi.qYpcyrOHOehny3GELs40blS_BQ2WiegAAjwOpUeLRa6_Z2XRu5Gxle_b0X6xCECOW_esCzdO.06w4paq_4PN4igSNhtAyYeGqDqE4J6MhnelmIkKEnjx4Uup2urrecVD7ZIt353_1FWvXSUobePx0RGieKsOg46SmCa0F3qtR3vl0oOqKt71KqRVJ8nQlfB_iSWSeuMa_r2Nyd9ydriWumpjv4IzobSs9fjMCF3lgeW6P.55.Hl2V9Qu11zQ4J6qEJx9dH5XuhYuPeV94_Sv1CamQOPKR9Ldat8xN0qRMT8Zj3wyhZhB5gTUwr5fTFV7AMxzeh4PE_kLSws10oq.CKoAR4Y6vg02OgdvXWn7ni3Fi.k3C6BcFERvkQ5_cn_SqpGtg4BXPqkZpvnsTxezLpoluwiAbEfXzK_IgmlaJqbQlgxBVhiMAlXtyXPYIkqsUAG52N84Pj7F_C1ZCchbnDjRMZhRAevIsgamVm79vz.szRt47JCerx_2Y9sQEHuUCpV1JCTCw6ryJJovyQDlzsT4tCj2qEI_MUyxZcKL0tSOz8qlcrfKhLkGIM2U6Z70if2eTrtEPpDWX5bZI9eyCE.JULqe55f2TvsyFEi.lhZG6ivOOIz9LI5Ktcxs2I3nW7LBSq1cRljBL2LGqhkO4b6Zpx_Lxc8DMwHaZNumTmInwIpk1kshH4e3u8HdmWm_NBrglr70E7pnrpLaGmePDfG73KIYeOuIANa0KHuppSAFWyIyaeycgtt94FS9sAq0N9foZ7o26ZsOTLR7b6dP.kVykwuCgg3mpi19lAnSlFk8AaTL5eZlOKj2JznNa7IRSFTF9DF6zYlRFErknooGLutDVmnEhPgQIL6hmXklgEYnmoEdgK8VDxrQIjN8gb7U7B4xyIhvwgmVfJWdfsjdaUPLwhumxn4DTrcbpahJccr.jFy9VMe5L36NW.MxAUIoWziT6EFYG_umuQ7RGzvCrrg4IpgAHCbYgqvNpZVPK_4z87VD0SGRpy0WzJpOTAduNu8G8io788xvI_jFnI4h1mphziLbD_gWAQRgOLvWdS4XyyZku8_JPdR.5w8JNia3pMdKs3fIYwkka6laT_VlI3XEWvz38jqwqvlIckmGkGeVQCma198BqoDDxVqvoAc4mlIIszu15djyFdlPykuQNkWfJFysw7hWGRM2xk6Erw_8nrD3U0gdUm_OBgrhGcj2iXjydT7VGcjViFo6xx.O0sS0PJwtvshEJ7RHzpalTio6NBBWhLbvrTqhvq14VX95pHrFXy9xqbqR7rmnkJ3SiMmLrrZqqqJU_87zCxdd.KaWG5443Z_Bs66xtkAtWfdg9wJhbO4WpOfHfWXSHxsoYcgTPzj6O_czfNS8mz5YfzJMkgCogAUiZAB_52KrKIPf3bkF83E0rB8K8HW3Mrt2vURYtqjHJKybAJjvJsZGg1_kFhuTW6McO0EBHGZXQOOglS.38Aeu6Vb_3ra0qe_XiHqYZ7udS2ZJyutjvM2cmjOvWj3olmxtyGl3h3BB5hLJl_2DvFeBZ1yHtBaY8jwAtxdDsxu.Ur9BaD473cts0ymLfEkt1PjePshvnW7fbjR0hzF2rGM8TTBCVfA0Z_TF9D0ulJgEh_mDcyJWDkNULEPNw",};var a = document.createElement('script');a.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=95b6edeb9f6edfcf';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\/5867903124?__cf_chl_rt_tk=BUJsyG1yeaH_Zqpa2NRS9nnMF_8ERAtfUtaFU91T.5w-1751886982-1.0.1.1-JfocVoofeB1uidbmzy3w.uHOiBHvHiyPHX1J4AmWCjc" + window._cf_chl_opt.cOgUHash);a.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(a);}());</script></body></html>
Copyright © 2002-9 Sam Ruby, Mark Pilgrim, Joseph Walton, and Phil Ringnalda