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-affhme7l3.mit-edu.top/post/4390852671

  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-affhme7l3.mit-edu.top",cType: 'managed',cRay: '90f4c143799c874a',cH: 'Zev6_wvAttiy9SQZzprM_HxVSQRQmah6tJzFqV2BECQ-1739113498-1.2.1.1-lLmISRJz2Zpxzgj7SYQL9ic_aejW3UhrRCzsJMeTgtj0UcfHyCM7a7iD3l6ogMpQ',cUPMDTk: "\/post\/4390852671?__cf_chl_tk=NrN1sWe9YWCrV1dKyIlGTrmALVC4nUpWVo_yeKes_o0-1739113498-1.0.1.1-RdG_TS2FKvdDk2mwC9ViYbNTdMiaPNKUNWpwQ6Bj_BU",cFPWv: 'g',cITimeS: '1739113498',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4390852671?__cf_chl_f_tk=NrN1sWe9YWCrV1dKyIlGTrmALVC4nUpWVo_yeKes_o0-1739113498-1.0.1.1-RdG_TS2FKvdDk2mwC9ViYbNTdMiaPNKUNWpwQ6Bj_BU",md: "pCGlMpuaBYZ76qhkyzQ6.Ns5wSBXPifx9RPw_RAWKrs-1739113498-1.2.1.1-V2l3ZJhrcWJKj7cdKvCkN9PDgM3d2pbdC_3PQSbIBN9dGjDOJ50G4sCq.IviwzkK4VnSGChrY4Za19c4ydeKv9obBsFUBro.KlQBG6gEy20jd0Kv2azM3UpaFFAXLQhbkaxQkVqxM6.ybemxoJOrii7bBOed8qADryZeDLLUbxUCtZwV7LUBJwBkcV3I2L8HhlbUJE7WT81UACzNhTYcDbFPttPgbnBkarIhwlixdn5VWxQ4YH2LgzIa1jKjFiMUOVH8ZNI6w0fWd9QSmgHB7w3_sYVwQFllSiLgn_cId8ICozdYueILPJnasBSU13AYTV6DVVA2J8Rjm0EaXheBzjkyJWQ9AnZ0lznA.uu33TCwnRqf8bzPUmUQRWXCrI9pyvhGrVMtsQSR2_etOeZ0Ivi14iDLf54PAeqvl.EvU8sZ6pgFxy0UmoOIoU2DKBWsH06EhPD6NJsFjRXh_r.VAjHFczJK5L2Valjvo6Exo2l2ORtNRJsdUl5DMxLJPTdMsg36ID3ZZcp3F_mumADuJ2Y_VSgE80_ZBDSXNeLDUIwhgartHp9sKpcRidlN6IKGXEOCh1mGKypJN2TBk3.lxJj7OFavYoKb4k.m8o1GoFH_Con.sy5fpgsqL_VQ9SFZv0dyKF3uVgG7gdNCCefmLRvvAMoEWHBXEkx8T.TyvhMmaDddhJlsMf0QVrRgHTb6i9xJHBQO8w0ona57vClWUPaP_8TlkeWIe373Jco1DMSTMbHpXZAlEhNxb8bxHeC32NABuB15Ih5Fa9ZIkNJ8sZpnE63ITOHfQNer32EZckHrgAHUCx5Y28AJRlgLJ4XwhRQaLE3vKBMgo9O07MRHAriFHwRgMI5wQ3XJEbaBWSkBzk2tRSFJXceWDa0f47E8a7YPmMLorUvhFTwTpmMrqeZHKUMAdkV5A8LHIYyrdNBjbGeM4YeNLMazgLQ7ywVgU5fLh6zhqcUqZnjyYTynefPdkWZBzMQkNkOagupUQyAGGFJHmosnPQnB9ewbUwtsNNassQmFy4iqX4J213J4PGLAkgA9oQzLCa8DUax_y5p5j0N0..jFqmhrS2E1YN8J84BzcTE9df2RoMChskobA.DTW0sqanNGM.QZ_a4bSMvR7tqKxNg87ielYnssXd0csfFYc4FWHnUIvuqtUduyze96rUYXM7zwT4ysbsKxHifeaIYHui5kV.GwKCvRr7_fa4SfrAXxmby0ff.5K68O3hx5DkFzpFZSb11r1SSftvnBgiALKeSSRzk2BcL1lsN3wZD6IiDvCK5YJ0x.kRO7Pzkfg0ql1j.FGFPQRcFKVdIBsh6YQHJj3p_fGrdIIsQ3wJiUanJXRiB5Xr4k3SEKz5d.8pBS4TRaluLCV6nkpnm8cL3hOnqubT4GKTx4NE7r_.z7sbMZU5zzVnO4.C7AttFHjbGZxfcHUayyoj.EHaywnnOvLSpRPsho9q9vKok1BS5Dkh7D3t93dVu76XJOqHmjZxLNTSm6kiXSYehQTRI0MgjeqyQKM0Hsa3f5S3bTpVigDcaD3yko3DgsjGVb.l5sDicAoK5IDcl5RgOb8U.6kgI1zniyihsDswF9v4dsStAtnV.V1Ml2nUlAbYW2RwJCd7twcwCm58jPtmFP2VKiVfIkRikeGkcImg1TT3RnmiovbEI78EKERa4YJ578_wnKiQ7y9bpeg5SvG_SJfM1zvXkMXV1PINpMvB7NR7yS8thfonTWdAf1TLvdP7X64Re9aWmecFwmmPmcY1PxtC_P3ndh2umeB2HH1YwlgnDayBDg3tHvdyQn7GNgAmIhYdYbHWQQLdwRm2sf8O6E7hBAmZBkjRMwerBEnTUAfAFm9IaNfUW0ZRnSUIrrDd8pYfkReCjDMPxRrke3TV.Uqv0w91EgYOUE.KpIHfNyaWo3U14_fvJeQm91vf4TLmYuWiMRWEXHjTnGOFh27eVDvhdC6CGSmAAFN8gWiHtgdsjvPcGJZyLsbQiM.R1IOYFHLsQP3Qug5LI8GYhm3Org96jVc.XTp4tDfmHZcQa8NLPBYayM2pqOimHMnB3Iqud34zVUGEyeNmm1ak2Tor9AEbM8bxDGr7jAiLljRsLAAKpk0jhuhm3M1d.tOs4K.mIEhUw9nCp0oDBcIjhDK3NyjVqJ1wt8fjypQcjDIDOch8XJd26v6XY7w5Bm1g6RWqJ.gGibYOImXsojU1XqjjXa9IWLIqzf_kCfs6fhRoPHozLP",mdrd: "WGonW28icEZRBW3HtdCkp8iqIZjuw8tWhdun7kId00g-1739113498-1.2.1.1-TlWWz0qUrpcOaiATs6g7NHpjQ.ewINKgVvpQiVOJzwq6Tx1YczeVFVVfwJ52iBTTce60Os3aqHC7zzMsxzQfTpjtjQ0NOOiHgWVbdngnZtCbp0d8aZosUrA4eq7atD6pGqoXi71GMshBv.qXmtz1WbVDeaiQ4gD.vHX0CFI3CSjQqbnrQzxcfbja9cnXlSi8BZXoVWGS2hGp2BJtj.Tq9Emx0X2O62NDleBxXZgln9gQQvx2Fp7IFOhYaH4Us67MZCVu1UZdN61QmTRRGc4ALBdMVk20W8073_sDY0NaSn.RQV1UUMuYhLmZ5EIMyWTQ1zvH4XBKaB5qx9pyfALKR1I7mD70e0NZ0BU8i4GxDmDmkr0OKCmUSbc8Zy2_BgRT8X6.76.61TtimhHtsUOtVZzAUldSucamyV6LxaLYUB7pVKmwy0TiECmuaO7vbcnoj9U1LUKr53NVyldsvMqpW01AgrSKSnrnH3o8oAZTkhtUdvWQTVgRo9IsvAN7wtBj4MRSks6o.Ha1E9nX_tsk9XgZJoji6YLo.aZlsL_3tG_MUJP15nUfjFKngOOVrwc5q31jUV2PM3oS85nPrJAUmVZnjfvVDktL_G8DFEY8fc9rquP_Pm5rGUS8_QrPRkbJth56Y5XlFp0Qdqb74RFo0lcXRbgyUZkit7_52TJPAJKIwzyhfalibWBYzf.TO3nzn2PHSpWIT2TS1szXZZXCcHh6R2JMBbA5BFs0TVOs7nau2nOOvQiQOi6Nfuvz2jXdYEMTr.sU0fDBwqBqXvEABLuDIIE.8jUQDdgC_tMHzEZjxjgLrrZQFdTtXLzyY7NXbVGNkR1WdWrw6NzbmxDqNcOKF8iw5PNrTMlJq.TlCq71vNCOYVWUQaX7FvA95OBvFIO2fJ96GO5tC0iIQWV3468pS.pP2cayNGrd7W8H0GfEDRZINLmNZ9LfyXvB8j4dMhA7ngK2otYh3NGyQvGuaNIhFa7YndYafGgQNPrJUdCK1Gdch.IQhoSJaJwvWDBYtCPGl3oxYR6D4accmlLpLpmgm9WnVmrzMUzoH427IsXLKSMvI1bKPCXsnDL3.CxmdJAuQk9jKaScWcSPDp7Z4hD.Gp9ZxPRpb4NtJT1k0hwIGlzfzvGqDgqq3fueVHkxzF_UDwYNEZwPGfjG_UYQtHFJeSKqaJLQu7J3cWzYAXGpR4vV1P1PPXdwEnLg_2mrWFG.SPsj2qPW15IHbC8wXedvnX3Qa1AuN4BmLP_IB2MYJwC6yhurOa2jvMnEFVv4IfZV9R40huB5HmrKuGZnobE78rS5fXBVNa6SqxpIrcZz2_zEmE2587uj1qjSBFjnYYwilHtn8UJDuNz7u5NqUP0MYldy7uFuU_oPp0kKV623y_AJj6mLgdwLD1NskkSV_EPKw3P40p.6TDzkWk_6W_75plc0Wy5C0DWZG77MpYStu8HH.c9Nom58r1xL.QOPhax4c0vhns8o_9depKdwV2wEcEmyNM1FycKLE39HoPIoN9ORRgA_Ulfk1JFbjEqdKganUFujSdmcqSkRf8hYzaRTMsuuugbKhzURXy0JZyV7K8a8FJbWmyW8kPr_s.fMr4WzJ8P6XZiAhwbxzx6mpqeiyzRRGmqruMwquTgUNTWFbMQ0PkaSuNL5dABJHWFfczAoGxWHrke54degPi_hj0it9olQQl98ijiIkR_1dsRFIyHTn9GaEJEg3o8SFAFuYOtXO4W2TITnL6an0bqZEr2WF7mCxkEZIp5vs_KG3FICz2Fn8gNXKaIoZtFTwtRtWe95cEXTgz6jcWfmWUOhFL.GULg3l6iLGhMkJ_BxC9U"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f4c143799c874a';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\/4390852671?__cf_chl_rt_tk=NrN1sWe9YWCrV1dKyIlGTrmALVC4nUpWVo_yeKes_o0-1739113498-1.0.1.1-RdG_TS2FKvdDk2mwC9ViYbNTdMiaPNKUNWpwQ6Bj_BU" + 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