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-affnsm88r.mit-edu.top/post/7840213965

  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-affnsm88r.mit-edu.top",cType: 'managed',cRay: '91128aa6afd2d67b',cH: '3BLNGRn8L4ERntil18hTIT7.4PgtO5dPOfOy.xn2oRM-1739425834-1.2.1.1-4usM6AKR2Ghc3i.iwl0daMktVrq0k8cte1OZmmHO8BVj52bSxuCwBP1Y.L4Hz49G',cUPMDTk: "\/post\/7840213965?__cf_chl_tk=sAEsRHgSi5ikMAbBnTvn90BX1_mDRNGV1QKdeJ1Nsvc-1739425834-1.0.1.1-yLGsKSYjYheFhVM0YkcZ_uqTMzKugj8dPocn_AGyW0Q",cFPWv: 'b',cITimeS: '1739425834',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7840213965?__cf_chl_f_tk=sAEsRHgSi5ikMAbBnTvn90BX1_mDRNGV1QKdeJ1Nsvc-1739425834-1.0.1.1-yLGsKSYjYheFhVM0YkcZ_uqTMzKugj8dPocn_AGyW0Q",md: "Siq4QTBwjhipxY8kOZZ54yD09rcqhvHWDIFLnxoEP94-1739425834-1.2.1.1-ka5RxCcJB10PQLt9Vb28.uyr0P.43iDRHQsrN9kDnqoNSqBvXlD1KF7fE922TFTa2b_t0.T87Kx3ujvZhDmZTgZ8nPKNdaciJ86rrGaPgMn.hz2orLLThowh6j9dGC6EPhn0_o9Y3EzK3gn4RmCJ7xNk14W90tpl4VV7ec.TF5hD8oSJ7fpraeeYRqoVRy59VLiFQkSGVbPHmrgUGlyrW7eSNbf1kg07ENgRjeAXALBaWTIRmjfadG4zzFpxPrehLLyukc33RFI.U3Ca458M8aORllHIIeyR0dFvz2ODOojSEaGS5qULgv3P5SxwWyBUgXjuTDGGXZ_kWmtPBzUq3FBPwjj3BGuX33i..W1reqbFQ7nhL0e7B_ck9H9qjUJ.EbuwcMe79wqfcfIDHlCrESjz53nZmgJLShaFPrw4BVip4exzMP_47G1xIXtFxoUXf1CJOoXd.yIoEMO0xOQD_un7K4Y98z1zDxCVKmIIntxTYsaonBXgP8fr3O7aU3pkJE3VeM8d72NhauAB_1fw1byyOXP_YkaBNk6vTo4JYrvS6xuXbDJSfkdWu1BwuvlVS1ZoH9foBuCsFhL_cEvRTSyVSSUp3VqCcOXyREIkT4V68Ue8IXfJWS3QoKNfGuqpnbbMCkMG3T3NHBCpTGjgW.TaLOtudBevgJ_b2VA9mgM8E2GwQGnKXKqhYeQTyXu6I8V6KxCvyYWCy82H.3IfGODnBz4gXvB8FDVA1DX7vN0sXIgfWUrXkxuro_Bzw0dbCpaDZ7j2o5kXdde4JSbarjzEZ8wxLZCB_in7aXnUw5e8Pv9sOr__00DDkGWzMUAfLUKwq0cnGW9kS_oC05RybSF94WAtsU0mHPOUxUp9_Gb40gKl0yzUjKUNoJ0Vlrd3vCY6kw_nXHcQpOOEhq2qmi_ScPZXE8EER9R1Dg9eLjg3OtcvzzClSQU4ZdKP3IyuB4rNDLv9zLcS5paupR24f1pLdgUCbDSgHm.xPHLS2H3_NYHlKFQy5vdzvcxA.zSSIAwjEXsQSUrOnFwt4hDVE_4ja7n1kTD2IPXX2xTCCjAIB3TCGlavcz4Z60Qann_Z7jg9Jzqw5IRIC8KVi2ZdsPpKxwLlqwlZaQuqvSwxOCTJmFxH2L7akRTI45O8SSbDrFIcaCMvt2lMdF.f_P1TTvnrCBSkYODkMmM0Ox8dHikQpCBFCNVVr1I6e8jRI1lp5WvLDhusktj85SJinokrJy.6B_TPLE.QS4lNcIS4cL35JeL1cIM66W3bdALGcdcgg7fv4BHlwgLlBEflqVpcG4ZtY72e_pwo2xTmBrvfJACKkItjHq31DBTGF0t4XdP7Qs52FeGwKBErUzPjOG1AMNcldnW5NI4D5LuzAfSrYAivQBHUEiFN5c6VeFCPlLpJ40bznD4RNqnd4558c7cTgQchLjBv9ClSOHr9vHrFj_uWa4NTK_bJ36h.s9BFym0rL_Vu52nQ9ki3_RLT1u87FCc2V4Cq7Ncz__9jOsc.O2hp2ngQXOfVdg0B7niSlSWwWeh6atGVlFuXoPhKnyxqpxTH0QpskxjvSCPihBBjkphSwqZFRwocFPKJcUG4QDVV3CNmvbpuqY5hIk4ckIz_f5N.WgF7L8aemkjpc908_ClP8LNR4YP1ewjgXXpRsKXNYlGYKXiAYeFuXzn9rC4Co7T7jMejjBfJcLkc7Xh0l6JBlToZj0Fxy55TNwNDvEY4871Z.UZpQguzWunHcwUa8EXNeYp8XEr8okCurMNQf00ZO6OdCM6vCZMxIUXPOS4DB7dewcOj8dMxKo614aj0_m6yNsnuqom6CkoKkmXYDc8A7IReVL2QPnNQxKZefnsh62FDZNCow34K0Mez29T3mezdgukXXRdeYyPwsvHARsYVrLF0yuR.a4tD1Wof3Amu.h_YBIa1KNxUHU8BHpaA1raIXNTi9HhhXHY9Pmfgswh5pnjs1p83zBAfx0rq578bHPyHn96Gk5Aw6LU7nI94iiUq4fPfMneFquFvu8acEriAEBeHCoEcqU02Bv2eNQBtMyq0QomwxQ5cNteTyY3D0_YODMuDoxTddHLo75NdevLSFe4._G5.A0nDsUMlDY_qMnxz7cjoq4CIOw51G8Q8HW4_iwJstyPnBMS1_xsJIdz0G2_jJ2wwGaQ3vLZmpROKwCUptUnqPoe8gWO70n703u5Vyx3uZUiX.rFwqFTYBVixcBppudhQle75YmmHnK4f",mdrd: "_y0W6kvTmM7ItQ8MgA8NsUsuyJm5DHtetOhbQ1ZQrb8-1739425834-1.2.1.1-.6zz5KFnwI5aq9dQCE0xg54qXmZUrqK5Xp9J.MIjSUFv_Ezci_AppiStGaKJWjxWgYG3YJZHNchrTGbaFzddscfxzfi9KerIp8exM11Pivq81YVn7vC0Lm6PF11aXH6ZCG1QRrbd0TgtAoc570MVSgPJ_q1okQ4p5tSaOUvQooRkmi0qfXXKh7wpg_LvT8kRyBjPCXSs4tr.HHz7z8jH0J.x3CsCLe_DsH_nFtk.ZIogfhndaRcmLlKdhFtEDtpRL6ZQlw2S6oxuhXJ7uOlUbY2oAhYklfLGZgcuF4e_hbFqa3yRnAARk2YTdSWg95gkzX36Fu3XpGf.ZI32GlsnkKFhSEcRPm5XweNruVMBjs4WfIrxt0k9PiJzGp1PGmvlG.z5s2WG3dm6.BoskTD3wRAEPkhHePerYkwx5YhLRYRnsCxSUKpboChQmUWr9HxgofazN.C1rYIFdEQ2z8NquFnwmlVrNHTwi5UC7YKSsKmop0e1VeNBXOJsos.r9jCFx6Z0RT43kBEu2IUa2sKDLzDYlTM.qwJAml05jNU3BSzUVRiNuIvZqcBf_X5CE3P8l_ZpAzg8B2uhDfBZ5gDqFkcbGY3BGiOrlpJ8OKm81u9SYMtRtUxKplX0aBlVViC7hJmcKKDxHirY8CTnSys0EnFe0wXuR6IC3mslz8dGiwWIoy6kxowouPYHA6zRd6fSOOxN8VPuNOt9lGqxLNPd5B1uWaW4fpQptHNGO9yTwFwf6XUw4qNvrQKMNcCsYUJxO4VqnE69MgJSuDH6XcgOJU7tLjA9iVavSSQCz85buCfnIDhD9Qe9ZZ.R_32M4Z49nfRoQKgPe7JT5TM1ErICRdZjucx8feesfHFCfgGj7nIXNIDIMExnsI509sFe21bAn8RA6KzXrkrAqtXb0sD4X3S0bIsAr_8LYh__FWlCYVeyFoi9eDFu2u84jGTbUymxUD41CYneoyXBOpf2eeOO.c2pXaDmOD4yOTtjv5UYfgxsjaZzER7R9tcKNUPF2UL6LBVU0pfWaTjz81OWB9RSQ86rKYyeb1q1iyvKd7cgALfA0KTnVnHuaiTyD7QExzZn3jdtWFjvmYgDn707TbW5SscK1RBZvv2huVsHDqaJZo45v2l1EnBSWlAIKWTcwNxRvPeGL.zHSXU.pnKB9NbS2jWW4b8oDhmW2vKc7aesw7RdQn9uGV78bWsPrhTeQnma0tEFB14CjO2ppBw0etQ1ijjcI.rT9i3wkH4OwJZzDSXB9bEuziHrcXUCvIz._5q50.HFTHJK8hY1vqU42PRHnfkvUmolYZAtKPpQBhV99cdGvX1R4gGbqBEZcj4ndvwAxL5hichsU0VdSHYO6QhmsY6vZg9UbZuzOlAxr18E6CXkV7dzA79ZRnKOroKyUMQfWKCCBUEBYyDG_okeybsv26vxhcR0WSJa57DFXCpVgDE5yRZSrLKIHF1jqZS49cqSTmJ7taCHlC.s55LuU2x8a9DaRaSZtqWjV2eJyDZG8LeFhdyC_zgvhc5Z6xcFEnL62bh8lKjfhjSGYsLoZEGfb30RQKKT4AEQaWbjWe5Ys2hcd9iP9.rs06MP5M3eXbb691ptmlvejMyeqsvwgPKpyziQYwrynXF7p4hy.4O0NXUu.yyrSguxE36NiBmlL_a3P23SRQUVNIun_.7mN9biP9nhlJPWfFNNtqgkEcsuSpriZRlFNyvQ0Z3qwmwH1i5lDM6V63w8LRRCQWaSOusnOEilv7wvET4Ri5hMuPGaQoV6jpmU.WUTHo39h.d98j0R3URMMn1Sjhe86J9t3G44oaov0Q4rYTKpbQxu3Wpin44"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91128aa6afd2d67b';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\/7840213965?__cf_chl_rt_tk=sAEsRHgSi5ikMAbBnTvn90BX1_mDRNGV1QKdeJ1Nsvc-1739425834-1.0.1.1-yLGsKSYjYheFhVM0YkcZ_uqTMzKugj8dPocn_AGyW0Q" + 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