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-affdgizch.mit-edu.top/post/5027938164

  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-affdgizch.mit-edu.top",cType: 'managed',cRay: '90f6a9c7bb542d1c',cH: 'ja0jxlT0lv1M2_c6RwHPTQMCuM8vzIpETQGmaik9FNY-1739133507-1.2.1.1-oaCzW0w82_kZGy1cASloa56luWsyTkE17CAKsYPaFmXfkHAxX7.YVY.SOT5HtPIe',cUPMDTk: "\/post\/5027938164?__cf_chl_tk=5YDw.BfW9tLyMhm20aht2KYo98hNP15sk.y1T_fbfmQ-1739133507-1.0.1.1-B.sps3zMy0TbNeojkAy3t.O6PWE.RXuCBOpCx8NO9tw",cFPWv: 'g',cITimeS: '1739133507',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5027938164?__cf_chl_f_tk=5YDw.BfW9tLyMhm20aht2KYo98hNP15sk.y1T_fbfmQ-1739133507-1.0.1.1-B.sps3zMy0TbNeojkAy3t.O6PWE.RXuCBOpCx8NO9tw",md: "FdjaTzg0wiSnbeLu.TIgP7P.eZtUC9gEjtj_vADGwiA-1739133507-1.2.1.1-i9M9ZmFfDKYv17Gw.URvHsktQ4zz3PvLhgjSx5tskxXH6IJmukKX6ET_iQRsvwz9Y.6kZnKkYgHA9ejZYvxbCWAr6aohFHt9_mwr5ZpwyEGhZ6ot9wiBrIoxmxMlW5j90fzE14OZKfunpPBi3XTc6GFTVK.zNa692Y675A0sof6.yoZK_ciq5zQYqZXYOHkoE9W9JUM1nuH7l6VGSkpbSWjH85PTxkxOIYWfE_pRXhNXC3QtdhXKcHerJCliebN5QhOoMbIpXdMsPb4w5iHVNxnieKSorMY2mgUeEnVRjTamGYH59JPAv.4vPm6u83TSicaNgLh7aCByBa_WziD71hg_5ylk1PY3t6RNK3KRbQXgBAmu8z44aU5hz6fjwbkiMxEMRQ4G5YHPoSfzqko_Wig7g6SMR22tfcmp_4UCFLExBPoO_UL4C_2Te51klvbjM_wBql16dhoQvnPq6vaTum3MpmFA1gaRVPO1Sbu42caSFQm8tx1s6O.JCO9GXgBLWupE98ZZM9r_jftwnf3Gv8_7YTqGvL3kvhm1wX7.NeN2M4.VMK8SIV.bYdyQJgF1DmfhuCF06vKWNPk_OxRl.SxNlsnqBxDgv0UT93cTAx0qBk12YgJy7mfapjIfrfIqFQg5.75oiw0Yz4m8X3jBegP8sp0GOO2PAJexY1YIA5Lo.O_kYZ31.5cTKdiQhUF3uZoVwES5nBTG09xERkaVN.GUpvGy.jUzQwxF86xyCYk_AmhGECUACSzaZd6vrsX8hc5xhyFIUTW0_ZHEAamDa3FU93_hm_8I.O_GPQ8cbcqwIUMYASVp0n8alToIXvafbePVulMc_XJfGQMUTs8zsnvzpLvYh852cGcY39.dxqVB6qQOkds2Nx.kaP2Z9tlXNGJlTYwJto4GaKto.EHrzpNhgHkl7KCiCbeQ1aQFjyf8lrNEYTOQmuB3KUk3UTsMeD8Mp8mCUdapMGDE0EqdBFdaGjn0Fkt8SryYLgTTwjxAntZ49s7nwfhXHhFu4w7E4rHPjdvQ62EQkdTnarladAOnfC8wCiinGIS2n0oTy1.t80gxiC1yO20FTzjEMjRYcQbXBpolLJngIM.tyjaiYznglBptwVHNytpEhmjnBkw2JUaKeZl5xXx2mqMGWjs3ZaWgvQsQMT7H4qEazksZcBKmiHC.yOZbd8p0Yx8Zjr3dppfrlcUdWtqxEibs_egFJuo3QTvg5pz0EJRrgNU2BzcIw64F3SYceAF9kpcBiF1VMlRjE0QeSy1zHk2YdDDADf6VzZhU3lykSuZDmerVgZOE8TBLKX9Fdsb15pEUEuQF2fdU7mHM.dvPYgfF7VR.F8PECtYLCHN5ddRlXphks3qg_yQVmOesf_PjFFqxCErjRXTvWJmFFhwbhacgrKgWcr._x.I4oxVjOP5HceAP2t3HBiK6QmYntFhjYq2AArdgvM98xyt9loFaLWJc2.bZlzuO40dcCwJJlBxXB6KJZoKKajnGg8OBBFUbAkaFCvGUjH3dw6Ldy4iIOaH5zFNp6_agQIN7NqSwQKHvvPjFuqg7dToWLTkR8szseX4FcXW0dU1WQMC5_2Fu8q.K6kQG2VuJysYHjnn2RQ42wICbk.Ce2ms.af3q8om25fej1iD79Cqz4rIkLCrRk4_rMzeHfMmZTWVS1zixQAQRK0I7o5mpzfiiimJNa4_HEQCnW2BJ4rMiakO_KjmDuYUIj4Jy4jVVmpXlR4FJ7Pom_LBpzI0ockijQvMQ72AN1XUkTuCst4k_CKk24aSJtjx0bXGNvu4WlTRuvRckezwTRV82CWtMBJCXphbFuaPyI3bVmMQqFsFVgI0a55dc7GR7WaPGIi91i3NiMe.Qg_Mc8GG8FIdCDsHbl5zHSTT0yuFkyDEzZ2IrIAJLbdCqS7sOG0xzmYSVqyKUg8x7xt5ULu.mtUyylrZlMrA5Qz8jvOvSUnEyvs19AGf2hGhk1GUDjxhQG33NrBdSUX04Fq8shCQdY55msZkJubgHQzeogosnOTfgtzDBEt7VlADUE8dFI5JPkilDJfBHGYAChsRcZ97DhWhPwjbNf1MxzBIAxvg6_HZjMN5kf6itWVUpsiWcSZyS6swTriqTBHcMYLdxTt_2Kz8.dx1iL1vhn82TsnMrFeVGhkKjIDP4sqtcwVSigMCVJxQeZmr2CCMS0gpMrC6TyIDQv4_ZXkPjLR8.wjPbdrwjA2TPIo2rhplNZ9mxHMgw",mdrd: "IBqoPpFdRi1e3vCcThd3y9h2HvWKeI.UL3emGqdnAl4-1739133507-1.2.1.1-oBdnd6BBAIxfgdMC9W3z9u2LSVuIjt4IF_CKEP1bQRo5xbmMEA7lmfJtwkwnQXXfC0OVT009EbbtonVCROFBHDR64VC52jdBBpyTyeLlYeTX8CeX8aRjolAeajaXgdqyFL2C3bBd4jSrR3mjVnurW0YUOY1eGyJxnxHBN9r0_C912TFxzRujxf3gj6OfB7o.NG3iJ7R2VSxpD.0vkw5OCDtBb0qYdRtFpgG9hUV1rD95uQ0cDA3J_Sz1snEGh9JhbsDhx4zJb9_Hc0mmOZ6.rdo5HYSjpIZPNx7RSY6Qs4TfWR2dcBc5qPUXdnj47TpZaqIzrHQEu.O3cT15Pu00e92ireUr3y6gzhMlCdVetl4yrlbIuJKp7FSPjGSlLRBcYo4EfeCPqTcAC6c3MyuVB7g2G0PAPSNsksTBKXO57AeENIgmFMSXV0ghG3y.eJV.8IqGT8UFfmv6Ku5_NOT5yfBLCFzo3arSLAHbbOIiIc3MQPw1TiqPZvIEuTRL.WMjGWVo7.VQMMvvWBo2pInSp76JmUm.xkU..gVaDfPs_39ZMlxDv2Pmwccp.FUyTnMMP2lbQ5SblQMYrz29ku9KURouOYNeUf4Oun1UYyisfA._vQ_g3.w6BOMmJ.bKMMbOX80HixRhVH2Qv_juk7WNetyBo.9pUBXYHvmmPEjvMaJRAKcmHI.zJLCFnufRYPZr6y.gJshHht1m7HCbZ6rH5v9AewAfzKHCvAPJia4Ko3YczcZYgjc3AjYwjIjRu317rxCEeXIYEpKlVYcmIU3qxYjNKxw__rfKf1GvRyTeGGWiVMqFRYKYJ.32YHlNRaX_8EnPmbIby3IjIFv2rDQBTMfLS.DPPfwQ2EEEA53FE405eUVwRMkFnQGtSrfAwxyHTlnYelgfovoJJ1QbbIKHmrgPo2mOIWyv4YHc5GCuivaDlgEm20yK.X0n7OAutKSTqnK5rGFI_OJ2ThYSS7ZfUSFY9JEeUvgoeybXiAWz1pByERTd2Ezhy__qkRKawHPiKhWdrJSNRCgi0NUI3gy1BTf4HDWyhNHI..ilmDHCrnkdoxqHaSJT1HuWqoXXwJZAB03klgdl6nTGwOVsRq0.SmjLzs5fVnxNqd5v5hffFRp.Y193nQf1yYhDRLg.ckuaTt1MtS8yXw5cMm7OpFqhaKDuk87hg_JvlZ_hRctxtW7KpQ6od2.YNE7mGE9mDSzmAv2VlIh7dsuLpdwJKBfGdZ1qzKwu0MG5V.trU.RxaM6MY0Hmt.i5M2y1G5kG9YW3oxaQBP8ZRAyy6_6PTN5392RzFdNkjwMUL5O30.d.HwahIDi7dsF2EMiYSkLtoRpfwvkP1ZufRV4QCkRI8g6apgT_NoeN6kIJRfJoe3fQgdKO46.VgvQu74idf7_.wkhbBGdwbhScfKdYX_gfB4tvIWV1v9bRoRzvfkJgfHSw3_Fm6CA.muVavsvPybhqzeJSUO7TWYw9RMxNnfJ6HZuw5_tcRArAhosGYZWXIlxSOJ2ONiQEJBtEm59SKQ9Oty6sGyrntNOOagE0f_zrSk3mJyS4DkAUKy3yUlA9TKTw5Mxd_uzMSKS5m4er8PfvQUwpUvsPrera.PEUiF3GhrrFrNAVobfDILj6zjd8rsJvRCXiBFFdVn_eFhLNJvp.HQhlzMsmoUFtaPYbNxVNvtWfAHfCnnZWPUx4e_IojOrYbIW6oio5uAeMHF8pTNygt7UZGWyLJ0dGLyhlbEr0.sXJvc2ko98zhV_2OuOUcAhtAXl7tEiiJZNIB9_CSkDPyxQf8VKtBFke8KxEBfm_4Uq45xco75PhJMvLLAOvjPPEcug"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f6a9c7bb542d1c';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\/5027938164?__cf_chl_rt_tk=5YDw.BfW9tLyMhm20aht2KYo98hNP15sk.y1T_fbfmQ-1739133507-1.0.1.1-B.sps3zMy0TbNeojkAy3t.O6PWE.RXuCBOpCx8NO9tw" + 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