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-affkqfht6.mit-edu.top/post/7843520196

  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-affkqfht6.mit-edu.top",cType: 'managed',cRay: '90f7dbd95fd52d08',cH: 'fP_Cq9y.3qC732AOsDJMhMi0Lol2dd79pMZE49J8dB4-1739146044-1.2.1.1-teNHhcfp_K8Ml5XiCzeD.q3AUXm0AlPv01JkA8_DreOJwVYO.EEfPwSn1KwTwWqV',cUPMDTk: "\/post\/7843520196?__cf_chl_tk=MAvbhJOf0S3Z65MrsXD..4pzsPT0y3A3vn6N6G.gddM-1739146044-1.0.1.1-UXu3Qwbf7Sl8YCMIVMuqwns8AU51BitULNTHuReNj3g",cFPWv: 'g',cITimeS: '1739146044',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7843520196?__cf_chl_f_tk=MAvbhJOf0S3Z65MrsXD..4pzsPT0y3A3vn6N6G.gddM-1739146044-1.0.1.1-UXu3Qwbf7Sl8YCMIVMuqwns8AU51BitULNTHuReNj3g",md: "we8XpVcPKSgrDhyqcqKb1MZazSX1kpb5GqT7EnUgdOM-1739146044-1.2.1.1-XqeX0xMgtyuPqE5VftQR.FcOw4qOwVUHome6lVLZXF7qIdMOcoDvN1Xw7KXVlNyZ9MeyRh4VFTm254EGI2vcz41g7mbMeJ1lpGu7kZsIT89YdiYeigM6weX3DzUDS16mYQxsw2MYzt3fLFbkTnuX1pGDSJH0eFo0WqS4RSdxhdy0wDifl2JzRQhYp4F3UphDBwyeLWQGouef74_lY8YVqE9C9s33IMx60Ao4mWAwhycyKkb0UWD0E37sMLHeAi1dCQ2hTTunvtgoo6tRspE70H4NAYvofF8UT1ph5L7FmFsszkHYYVMBeVKMn6lIE3o0Fr08rqZXr8yeXT3tu3K96F_JhmGFPiTlhaEj2Xpzwnc6VXTpSY8Jq25AjT.zwXqYvlOuCA4o43dydx3dqwrXtq19yPX9hy9zQXnyq_O.CNsW29Owz64Zn6HI.P5s_BFUN5v0HIbsUnUWKG6bRQ9enUhF93JgGIL_lF7r49_PvsZ7R8QNmIpsSK_LBLFrYeRKjm1f09kx1GFBsoEgwlzoT49WEBB7qjU.kgBfHTdLcbyonuCic.DP5pbeOfJ9G1NstA_rX8CG8_1t6Ik0rtSzSDG8r9dvXOJh2D2NcWjwVcWpnrYEdm4_vBguM9HvaZ4xQ6_X3w6S43ax8LT3NAjJUVFdD.G07ZTptyTqS_w1IRz7kViITZ1GHaU4P8X8vcoZ6vM6vWt0zqvsreXIsL9s2Opz7f.ByHLhb1pS4Nek3C2iNQsi8ncds0Pm6OIZKvnwRM4UWudzpqSFNjt1r8ecQE.37s7KZsu9tfM9Ez3uWikyAgw8L_IYNil9mY9l3Hk6qcTzQAzFriKg_eXBM0GVNlbiFvTS3WoJjHKdYVIm5ESUi00pifsbEugb7aoiSYKF_LcblDOqI4kFYoOw22Mc9i6OobQeETOwvGWbYPm5HatWw_cFtbljKmyOuQVtMcQJdYFkkYKvGYHnfYd6As6m7q1snnY.RaPzIURrp_E8QnMzPlFF4GjZocMQ.btPE1OjELsymn6Ze.dMAJmoBJbCGstnTAoCVVDDH4OMGes3Q9sCCS3Gk.9H4SDlZVr7xG_1OQ0Bm43O8K7u9MNgq1EWU6x_Yo1hTlqGS.rtUrFzl3lF88UaIJj.KsieTG6WMMQhgO826Ng6i8HOsKlX_UIdSrpdrG85_5B13j3RcqKtgdIb6wDCCyYvFr3FkPCYBvHWl5G05Gd47gRSn4CbM4ftzGChRdg6n5B8Wl52SRTxesDRe49FqNyQBr0KtthkLH35zyjPDx98UMaukqCmn2VW4ZgofGgds5C6QlF1b.xnWbldYXxkGXMyKYwNi4MFWS2Uo6FsE3phWJ2wOicv3idO.08d7XUE6POyAbGbf73HXjGhexenMQvMy_dAWeuiECa_B9qpsuR3iYeeu6vjnHEc9qHzrFxxtmlWwWxngaVDsFiiE7VcTXAwzJHHN5hwOMM5TXX9gPFmGvLIm2zmhwZvg2ku71uLgqkyaQ6leTybukfaeEQNLHQsCNqnvrH1bXU7_RQQja5XDkurgqggLXXFn53t4Md8w0NE2UcVs6RvhrsGoMmzvVtKlfP9dQStceG9EmbYZAljIkNApTkrop.TwdvlIkojD.fJsYgGE2VI_jCbW7Jm4s_UhzfD_qa2ta3zk4H2XJY29lQZ_7HeUMg8S917QXUkYa7adHycbCx7A1hngGThSaLBossT2qps3bEBVh4d7s6lhJDzsyyxucX2IWdlJRf5CdWnVcPEY6XKghnXidI5IAW2WPJZswUZ3_rruCDz3izKcvmFLPbOAJHy7CP7Fm9v73Tx0r9WBUtk_MGW.DWnw7Qo9Kw5uzXUk9kse7twCCBUWk.bIa6AVigJR3w2QK2JLjuZko5I9OLS62LNej9fmIMbP0hjVgzGJVsf_Al.UiC0ejoJLQf_inSmKSuygUtuBjFS5nnDovdITq7_xcf.QKXtk92Vu8lmg4GZhAGv8ZwCK1XCEz5T7LtCEbr05qXFTVtQLl2b1Y2YhbA.G.ziM.V3blc4WNXE9Um7j.7iiXMp7ELiVnjwdP8v9OxCXaSzOe89PimCkJUis_CwBE8zt5eiWdQCBITGRYrzPrSXn0crXD2gVp.ttYwqzXfMzu08bOQLxvjbFXYR9lj5v5zjMi9MM4m5KKoI9Sa5hl26a6WUM.fzeBsl4T760qkVFbqVm6ClMpDOyLuDwsq3_YU2Rcn8zR6CecahX40R",mdrd: "Y9UhXsNtyMrZfKZAAPc1ndxJXyEG85DTU_VRrt6hbmA-1739146044-1.2.1.1-BuRYUFApKuCMu_csKaHoS1u8GJbxMb8z3p_luvhFlMWoWouCLLorL8O.dIzTqzcrLbMkOlvQYG0x3Sqf70M1u6_hOm00BIf9LGo3At4S.npwh.kRwe33ZK3v2hHDiCDQKkOnDLE3pzJFnVYBF0ieiV3yJbGoED0yNatj72DFlfTREx_C.XZXNOlMoN2dzT3H9gZhoiIHDFdUVBu_7aofaTDUFhh6vCoYYxes1o_8bCFfG4HPyBVFlpz7DONIrmD08KIdYNgu17ivv0JWbvQp.gll_5CFtBu1Yeipb1aNzhjV8Juted9H0HPAY1dtQDI67RTs6nU_wzcvuqMEChi6Cs9gGo9PvJNHSV4NuTUs45snoszuvwtChpPSJjhGrACrRTQyDawVMchigumn285Mi_Yv0xxMe1hqpkmXlY5xhlBQT1kFJFpfcwsWlJR0Hf3bbz.uIRLX1o4PbCXjP5nAql9eDpdctFmXydhCIb35dilqgFzab2B0d8pV1Y1dI0HemBmBuSgqb4pmBj52pweacJx62wjA630IfE1f1bd0NHM3_.9xht5ZTitRcASPTBL7EUELikRhQ4ZuzF5T3LmwAEFqP9tXqT2_9qtLEEQvz2y.SrbVNC4C1FbBl7yHVNigr.h3TFfhTKwvk2ABP28oLafDFz5ET.El8NKIYF.yuqt_hPBKrCVrt9ROXjrw1ZZ18EvZv0SaY6PMr2dMKh_0lavQSmDOQMjv._LlQ4zeA_lWi2ClrSZYBy6WWpwZlREDdSlYpz5MW1VWl8554tT_5t.bCaW9wtAsPUzrJ7ano07BqFKFelzaJIWZsOGyc6TyYTK5BMKdwMqKtA3S4zyyqK52HIBS35RZ6zrnRuhf6pQC9dMhU8Jt9XVmEKjxXv4TdaI1qslfA512If8Eo5ycBzqWoRurBF7VIFnzw12vNIejEZjJ94HueHI4f5vSV8em2Pr6l8L2pbqaugnnE_jFPpoQO75ibOulliMTofP08JjPIsvxJfaWdsfSWzwkXLcOveC6pls7ALQJC9_oH_j3XxFruwIoWLoG1iDAzbtLopUIgg9duJsetY.XtM0CvEP8dE4P8p0aEiWO1ZJSX.u_QC3w1mlHgw1tKwB9tkEEQYHu5aStpf3UMnIK5hlNmzXJLc4CuXxyWcHeYatuFRdT.T3m6jdiy_9ewywnrCYgBLp5hcighXScNilu4qIwkCOIDRDsEuJLTw7jyeQeK67KYSfU7S1QSySmd1BS6cX62OWm9ZtGsrcKmYTXEcfThkHDp8H5mNrJH_7ULDUSsDzz1vq4XigFp7DQF07XFi9sUapb_Q3P5WC.GppBOr1rCDm.7LOxqz57mYGRpY_l3lpiSs5R99cvD61K_EejRB8uG7uQHh1yJFgj50gqKPb_SL4DCobAx7DJlsqf6.exNGV_8mUJbQQ9X5.SIWXirGzS310FK48.dy7imoEihEoRjk3fnRdCpNDXSlnGUSFCGteaElOlaOGE6NlJCXDbTvAjf7hvUZ6WnfRXBOjtjyUyQtCH37c28Y3Q6sgpDwYIRj9J5qcXfDB7lXbrVMkJzEjLrDWGTreiOIBUhdPKCwi9VoMbdhEMKkXoqu1yPJhJbDLSqd.ikKutgZCcn359Lo94EEsBxz5OASmmeMQ7ZVHHw9BprceqnD0L4rHt5ctKlNut8139Bij2p83hr1ekXl9SBUmu4srk_0LLZUDt8JzxOvK9It6dxJBrD1.UfrH2rImTUFcUNivSvYMQrA4SvSLkbKJdXEU44GkZNDAhRST7B_OeRaifsekHZEeTLcMRZ1NaMQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7dbd95fd52d08';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\/7843520196?__cf_chl_rt_tk=MAvbhJOf0S3Z65MrsXD..4pzsPT0y3A3vn6N6G.gddM-1739146044-1.0.1.1-UXu3Qwbf7Sl8YCMIVMuqwns8AU51BitULNTHuReNj3g" + 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