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-affgtxfzv.mit-edu.top/post/1790654832

  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-affgtxfzv.mit-edu.top",cType: 'managed',cRay: '90fbb7191a31f283',cH: 'FkNhjaBB.QUg0hJLud8mhh93qZTw2UykD.gzQzS7.2Q-1739186482-1.2.1.1-QNhKpbOMOtvzpyqB5sm7NweyaOkFyTcxTBjFZy0ZIJ9imdtBZOjIXKyMmjQplRBG',cUPMDTk: "\/post\/1790654832?__cf_chl_tk=o8eWemrZiXnbXmmeRwqkGInUz72YxO7u8_TT.TTXFrk-1739186482-1.0.1.1-1YTq6CvcyoZ51hufgsPRaO0Z.wiwb.czvlY581k.XYg",cFPWv: 'g',cITimeS: '1739186482',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1790654832?__cf_chl_f_tk=o8eWemrZiXnbXmmeRwqkGInUz72YxO7u8_TT.TTXFrk-1739186482-1.0.1.1-1YTq6CvcyoZ51hufgsPRaO0Z.wiwb.czvlY581k.XYg",md: ".mYRIrE8iyYsaY6y2AoCww4keq.FCMvJIaW9EZ04Wzc-1739186482-1.2.1.1-5md6hJtLeOjAGB9N6ImSpVh9Xrem2VWO8EzIqqSAdDJGpV2giCUaxURfS5vkQFOG3S5jwkrKizpGkJBzNhI01t.m3xsrTaAcVm8BJVXLvcbJSSj2yO6Dol53z0T8zIzUA1XuGadNTxLnCeO3QTsj59U3.LMESRMv0NYUXSOkcxwpoEgLZcVvjmvSXA3Ldsl7aTF1xa1YwE2ysnlqcVS1xYuSKxJs6RkQo5UbRCnSD0hYYCnrC5bqI9WozoTxaYiBgx2pquRkMlMZ9kHjBueZN3ZuGPqtE6VV49idpe141Rdoiqv5FJXZtjQ2WW4_rkTDB1tQIug4hVsd2LIro0m42siRGlD1zlnSG.3acSJOsBabKqD4tgmE0yhszLs8x7Jni1Zv_lzWkJzrVmomeIWUYKOla_EEbK9GfePFzENl956Ju0E_auw2.6o7fbEAp8azabCO5EcFU6tQ1viZu_X.Qn8.4N9rBO3OkXO.ULCIbZwtL7ZACQLChcdLWmcmOd5nIcOpMQ9yDdv6OBB9UMsZycA7XswQBWvZKMJ5ZWTZAVm9qpulKfCTcMJDG0QjASONnYZ.yWZV.zP40KcJ2jJvwiQ5.pVYfnxwOLFuzn0SXFmEkM27rDlXG0o1sUjsEpukVBx.NSPR.ng8cIt0LwkEr9yc1TG1JehRr1avcVBNb4zZK2U6_bgRX1DSFTqlV4vtAvvxDA89bEQN6.SuR9cujrcCuBPNWjPwYFJp3YyM5sm0LKuckPx8kFfwWj2KjYzBp12ngUW2og4edPNWkoBtxgxqCnxw3U3jPPsmUH1.FhkrxNBjLhMfDmE3XsAmeiAuTF.XR9vOSNIRpoWbgcwPtMvvtlvlMFJ3rsQ5GBHXsWqMGA.Jv1xuc5fh.0mkrOni5uWUaOUh2tGvwGvsjG7RbYQpxxJem2jpvDD46vF7Moy8x4.0vxPUXflwc07om3KPmatfkELmWb2GHF8LU9rkz7wLIYG.p2rXR.5aHE0I3zap5NBKnjeOjXaPMUp0KVHdUO4sGbt117tQCwnt4sht_Do8Y8Um1IrWiBN0E3znJvxrru8ci1YQ66PBs98MGAqc.ZK0PaPs8Z7y.U.FOpSBj159Lin6qaIdAMFY6PGRINbDr.zuxPe.uibLhwtnnD3BFvB9lmCiL1zSUj_6HQgqciLoIrMcteHgzbiXC3SppCuQkOiMh15hyXUKMKt2gKx7Gq3KGrAP8eGER1FF1Y3HO2Dk9971ATDMzv9R6wqye6dFpxQqGN8bqh9bv0iJ1TH1.4UtsQwbURELW7bo0dp3X6TWC3cnFAPsenVgw.57PWRCiw2uE8CS46qEU2j5wqvGJGXaufSDTjVbWK__iom.XlGNsFs3bBC5jEcp1VlWzhKv.3Vddl2VAzXphXVgyaEjPWyb1Iha9EnAAqvBzajHsDWa2oQ5YIQdsV34IXtOW13dri0BCvjqSEyggbXDMw6GpGVVodw9Lt7AE2py_oQAFZMb4aqATi8Xd.itUxV2FsBDzz75hTfrRPnVURYA4IlxztixbMl3xvaUyquplYPOzCNifUSgCKq4PAm8eJsBu4Tz4Tg8lhIoV8fnL8LkMRg4bpkf5JV0p6Svet2G2w8lMwy6_EdBQ7mftooUNSZm_YPjjJQST_H2axsd4mb6o5lT5uQmDWBIzHqIldoY4v19SMS5iEb6.VUMYPLUAb0i.q1Ro9fpOFTXhn6xpcLQYRjVwA4AuQf1KFmmhy1p_bSGhGF7DvhHZxojV1IOh3UJNugH3LSwet8Pbn2TXi_fGylcZBFoaSVmtNLI2il9Ff4qiFAuAv7yXNJK3S_LaXslRjvL30rbWga6c2A85wIGBMaPxqhnWJtTqNbdFu6DFPB6gcQNa1_IMN08d9O.ofy74C_Qf0btqeBM1VADZJ_vo2i0YrmyEBu4_6QgKCbLb8BuAjhH4KdkL39nwIvn1KV2yjsBbp_hwhpU3TEtO_O04ObWoD4bnXNHCcS62B1UMqQtfA4Q.Y_i0Tka1JviE5Fp4QWAZEwz1OqGA9IASqtOcGOzKqCGddbUgEUk5WBDQLUd0Iv6AoLR9X3M7Zmk072..Zalzf1PLt46bVbyhmX1ZPVao9g7_saKC_fZb8j1TYk_saYKzMENkgDRjn9IhpOrWnyHNt7jeJ2OwHEcY4p.GsufkPeTbOVR5344_ZJcAKk9YfwbMnqWlcfYMTjxhIJbYImMWVswVcBKiqjQKBYjacq1",mdrd: "FK7dQKVYY7Wh8ACTLWh3tPxDigP5cw1KFkZFrj5QbBA-1739186482-1.2.1.1-wneM3G.NmH5OcEW9UkGXhttRUCnuginHl71te4qsPNsitPoyiQzJWgYx6dULRxHRWkEOu5HjpXeIfzSkVbyd6qBv4.x1L9BGCJrZGWkQOtu90CG0zXpdysoXTXibxCf99Zk86AdQlDGI.8iqDaX1nlQ2gAJEIrLCUhiHa8ykRl5bjRI5o_xwXZBTEdpitMfAw4H5XTtm_FuwKGukLBtrvT2H9tru1zUxsVoGuMgbqUAYag3G3HuX90lorLQuQtU.dt1ztIsQTvsT24sKPrSsSIimk4I.Y73zE2tVSfJfr.UVDn1UnP9Z0DIQnYJMgwNLwMT0OFfoXVQFlEBFFeHp9alHq_or5xQYn1O.SuJxJ8tfqmxn.1xXSIQrz.5aHh.GsxnOjjOVuWdbodeJtqnD1jc2PhaRyz1NvaNyBR_cW_4a4zEg02TQshSGtOMaruqZrj1KCSnwdNAxjBikP5vu6xaU_5K1Z4dYO9n2vaxNNvhqrFOg7ExclxwrB.33eYTSA0akb4RIyZl5lTLyq.dnmUCXwSS6v7AlZSs_LZPHIujoyWLvoTtZIcdlzK_2O7YbJvz28PHAcrqg7NITFHPm9stTjL_nUe3VZjdlKGuFBdaGyW2yPvdRZxy0Smm50PZRRJd6vEzXjc8fRcA.MvHnZKgLrGPFA0_aZWgnHScVA9Vb.h8F2QUd4WnR8IQhe3n96rDattDQukIfN698KI9blZk1DXeVF2Ot8_r5hwNyHrUaicTJ9GBFTD7Lhl05XLLuVqE2jHIFa3daIwZhLq0Tbn4hbCKTXYaPBvWvoMbCDzAunwr0pn8GVPuoBxu5IcHEkDqW67qC9MYboZ3bTGGpeuzuONcQGYiNaBcZXmHOz4LnY_BuK_rbTDEEItVZ7hbrKFcwbDR.ENeyEk3g_EaOGVJ__Fv41OJqfV9XWDE_FYQebbbrkSIPBW_rFY2350HQcTOSEk_W3ruglyVxSK9gYxbfpK4L0Cu5MgV6s6LaJd5NOdK7xUMaEm2J11WyP4vVAFPO3yOf4r_BE21zkyHeQon4LaTPkFCUzIXkDVlFhnjAbFyDVAAxj3W9S6duVF21u.tg9vEYVb9xU4IRXrHONWff5zxhTwgeUDmD7Uh.HY4K8MAa1hhhj8BwFRx07sDpqHo2SGUeDpEf9SVRcsyMu_ab56YEBEEsFK_pk5j58ddRMlciR7bysOSPRtyI2IC7t58WHfxBx4nywAfXGKR8XYtkujkNN27FCTcPW.5lRlWFfkyYe5a6QpN4Vf3rLx.1toeXvjnV6MPfETpbnRIcX_Z.QUnSXdDgGC3Y084BWCv23mg_g6e5YP7akbekpatc.Ssoc_KVRrWxjd6dQAIdPy9GtQ66CCoPLm3kWNIFxDtSMIOogT2qt69G4Ru7wfYGe9b5Sg_RbXx04lMbejHpHp16SxTzKjjnQKelFgksaUk7sD9v7hBBlsUtatEzbpMHuJsv.INLGLmr9q4lhiTd8OcuI5Y1dXXXZ2B5pXlQLJ0gXc_emA.yxT2spRu5yJPspNfnhheq49ZtuCcz4RwS8bnWln1Y_yjdLnCWAqGiDPM7x3AZQJmoFvbdrLWle0Bf7wg0PfPl1yRqzREepEpk1UIV9JJEqVkSKaFuoHbmie1Rwe1HVUxacXySqJQchh7K6Fykw5Ix_VAZj_1yrVW7o7PS6QmSva08k8KVlvi81oWKqL0QE5E8d5zi2SRMfUVLbSKdHnrpXVDc6oBGQw.fPEdM5jvkcdNMXpFutr.GJj5HNIEiMtC_bv7KRXoxFBngN.t.Xiu7dfPSUF0lDrw5kDQRckjDnso4sCbfsRqtIKEN23g58MgkSoy_l3NTjAep"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fbb7191a31f283';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\/1790654832?__cf_chl_rt_tk=o8eWemrZiXnbXmmeRwqkGInUz72YxO7u8_TT.TTXFrk-1739186482-1.0.1.1-1YTq6CvcyoZ51hufgsPRaO0Z.wiwb.czvlY581k.XYg" + 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