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-aff4g2xxf.mit-edu.top/post/3456172098

  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-aff4g2xxf.mit-edu.top",cType: 'managed',cRay: '90f346c99d212076',cH: 'hfsFZjNACGaxqqtO9OcMq47NEF7.cr8OUr4dgsisZ8s-1739097995-1.2.1.1-AwhVfH.lGT3FtvNkW7jkvk_2fBQnR15QvtH9tyoBwMNxPl8X13LL2KWEFj3s3Ezt',cUPMDTk: "\/post\/3456172098?__cf_chl_tk=AJH4UJ94QgtvVI2Q2CJ09BPDtRocPMV.fJ9Xo.ZMtXY-1739097995-1.0.1.1-sQY8mXdtKU7WjtTlyaElx0jQoVF3shTWo0q4xz72rbk",cFPWv: 'g',cITimeS: '1739097995',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/3456172098?__cf_chl_f_tk=AJH4UJ94QgtvVI2Q2CJ09BPDtRocPMV.fJ9Xo.ZMtXY-1739097995-1.0.1.1-sQY8mXdtKU7WjtTlyaElx0jQoVF3shTWo0q4xz72rbk",md: "aHrzG8t8Gp3L1XDkHftqBG1pN_uhHGS4Vf4KKX.35i8-1739097995-1.2.1.1-oaDB.gvFn92GI_k2yKvYg2y3Sx_gk60Py.hXevN2ia4g.6wNMurDvHkIgbWA92rzcJzjDrkeyeAh.LlGdCluqNm.dOYIjQR_nnpXZ0cdtY9.WNZjaGvGCSWzbao6i3Dszfs14cqkwExVwMBde2j6WKALPyh0_WWgINjrMsMsP2NgNvPiWSheKstGsPYMCKTV9G6cFA5LN4YY0AU.VK.AeosBoe.vgZ9w47Mi8BOsWam53ro9cMAtA8L8xDhwv3x1HCL.00jpM4W1cwmHdEX4TwgS3zeP7rlsrWYTy6f1Xt3.VuS4oshC2uYfzTOWwdiNC9CQFZYhILAW7Wxy1G58Vfoesy5mQWyMzHagt43qDQgxfFaMBd6pjMJIRyPN9HtlM_ARPSXlAUZRIiTEOZ5YihC8TDi6omSzoSw2rgjBGWWY5ggfJuxDbnjIJ6CHMQ2IE1v0QgtktlONJJZTzYPyUCsmKKYThrJe2JW2bvJTz1C1flnZgEj1oEfVpI4zD_uAk9qlXp4efLrEsQddeybQAOtRxJJT36QQ0wnWS7OlRhjLG9XWnMrnyR6G9T9kIn1aWRnVhmTRbO7zA4MkT9JPDa0t0gJ4DRg6eovdv5CveeriEH9.9O8jpCxvc6X3rXxUxkulc41XN8nKhlvL_1XaA79NWvYaGK2ue7ETpwjlkd3sKP49aoUEkzgkG5Rx9w2PabqqLU2w9_iJeoaywxjx8355.2WMERpTrJZoYtwMxXwPafnTL4laRnUdsrPB_nYLrWUbQB68sugF8YQQFA_a7TNSW8Z4.SymIboY_8Y9.ijfqzlCnyUm5SaB.OmUNL3Bk9qNieOcRK0QWfkjVFMx_de5fuMVziChdUcoa1jPr8UMPmcNuldrz3nRJJFMAlfil8afc9.pv4jth.BJPG_VzejdxCPTgYo8xWlfg_M2B2UoDH4peUh0VNA8GRqeVcmpwilTjelkF.IwNSCbJRtDFl9K_0QbxMb63UDpX5r62yUol0LkKlIIPVXfT6IbdVhp8MTec_VoC1J02_E0jvRjX61uxw593GQTokiZ0.G8_WNLmu.OKNcvjtKn2s_li9n6FUKBerJJpfq10I78tZq3vqtp67LnDlsAeZyFuXkWdcDjwKPn1ULNPI5yZVKyDh0slJRodDb4jlae426PGaDCKbD2AvAFknOBJcBKkVSZPfUjJSndKR.Qu4IT3lGhVSzIXKXgkIMrpI8nHot06xREOreXKbPfrRdhXPFLIO3mB37OTvnRoEGEvuFrG5Fp8u6B.EMoQSV6KyDh64hMJMCvhaPHIhnk15NksNH5voJ7YE40C31iZ0c.ySGj5bZwUSN2BoP_1I4b7j95qOGrH.zEkJF9gauOoQkA6rSl7QIsvMidvNIehQMGpZJ2kAOi0Jwhiw7fQ98_PMQn51YUQxKM0YS8UT.oxD28vpVp_D204bn0bahbfkG05HWvBdCWzBcLkoRrLCY2rLXpulCGbJpldOewW2Bk1eMovj8Xf4.bExwD57W573q_PmtE0oMuNz0hOc4zr3NX9cWQMj1_Z9nMy_IzRnAjsYKl2HrTSNdquXn8lWEaMQuld.Dpkr35nH0RxkLViQ0KEix1Y5N_Wh_9alCVAU5X4cJICd3FwQDGV4YxznRSnZ5LOPv_W.ld5w87BbHIoMartMjecVHc3Eg1apapCCisP8mi1DS4Of55A5tZD.TkH8vHI_hAV9zW7Gzc_1SUgmMx0t4eSYDLe6vtsKX4w1KKyFgvUApLo0tRBSEogKYqCexo7eDj.Lj.hheL.Ox13h7w_HvxZVyjfrLLKC4YlH6Umzl6X.rmg.JSTLHGbHi37CIq_mtfygf8YJq0_22ToES5d.zjhPF_KJ0CwmluDVVx6ELSbIBSZ0Y3wGgyc_8jmrP3w4WUCkSJRKH67zgsv4dvZFr9V2RIdb8uFOlBKnrNWMIsEXiBE_af.e9lVJlAmTu0sw1mNOyufsCYH4DekGrG1zKNrzO0H17YYO4bxcTCs.mXhHmORuqc4g1aeM6NNahvm_95Oe2jGNKvToHKEQD32S937.r3ONBYabKfpm.ZS8gLmjv6gD_1GVQbOoPOtH.WvpTyiIsa3friDEqfnAbnENXk1UBgrh7juxkvO2whxn.PPF24MotSAhKOcuhOu3NqgRCA76zuv2I8l67MSS3cpkadRK5..rzAa4tu8pZ8cSaetvM37BxfKYqTz_ragS715u52k.scH6Ki",mdrd: "wjM9HhDx2B_jKrGnRywby_fYnp00mFqz78Y7ouDfRyE-1739097995-1.2.1.1-gYmqPEYDxmxPavFBYk14Jyy3tPP4RNCJjJ2kr1nseVPV2yDKBLxlbB5ea3Xu6dDHE.bi3dLQlEoefORU_zxPzMAJB61q2CwJuJzdZ2xGzkfq474bXQKJyrb4E0_kVqwYUNEDqsN6.SWi9wu_fRWYIa0FiVLf3qW.SKgj1pC908D4zRPxSBDQ4VCT8i69K4cwNW93Tmdn.KmPUsCInzCqUIwbTwd_a.GrehSsM6cdABZEJQayyS2kVQJCLBMxkkBSzSKC2v1EPFVaYPkPs68Ay0T3bSTodnPfJn.iyBuJfzSLO7DZJIW8_GHgv.HwsEVmPZJZKUP16WVv4PfK0ex.1pBQt.zjzP1K9.N9qiLin.GJ9njAp2jZVXNohK6TiU5dc70kpI_cUL7RkQLS1mndwjTWk2rbd8rvNLkqP6zvFK8qWJ52d7Ech.oLA4zTzd9g0MbTjBiDCuD98xbZaU2Eh5dRdHV_kJHkNllchg_wknhSAFBI_4QD7o.jl8hU9mgJYLwVEv4ZV_EanBe.tVpMwcvBUupNXp86o9ufywH60eIwGkUtocxf7nmV5Dbza6n._HtzsgLo49nPG49f_BLaeABl8fO.9Ek8HcP9iHuyYSjOsAFx5S01Cf.F8w31cntgOmjXNVnFriR7p4XRKe0XHf14tBntNqzz8t5e.niT4DYaGfpJefrNH.ZmXXF8DmPmLdYyHl4dCGEOq4DZeWMeW5iplkfdvPqtjEBLiPEmizJYddECuqKLFYIy8Rn9r1pPQgs1rD_2waQlaiGA76aiLL7CNuXjTSZfhr32NTGwrj_0P1kd4THKNVsoSElQXMQ6IaFaXsPMfj800ROqHDeHai0Zv7mo.gCSI_OQdexwQHnKjJmhrUvrVZRvJiyOQ9aa7mrte9WZ8Yq88VBKkSgTkP3flR7QkVO6PUVSIeXUch.zk6E6.8cXZpHHUzV9o5RFjZ9HmciCAN49j7it0BGgQSIFVYYKfZFhkcbgYQrkFVayZNr3qOp7pm8NZ0nVPXQ5jcn9R7nUAX3QI2V3dQEaeWnoMRNnokS7XxwQ7o_3ePdV5tNodTM_AqsKjyD56Tv6VgohtexGjSCABEGlJhjgwM1IdyLxp4Z6qsBoKF7qfVESFUMR5TAVBpbjHIorq1djYYegLwL5k_veDgMdHoR7nMWCy3ncNgMIOqqW9m7bVAdIT.kwKwHPfpQ_jFAQENYqZ4pAUcLps1AZPosorSaeoqhO61ZJUd1acU52eRJlk3DkzrgWAbvdMwdOk8FkjCzmVB8NKpFKq81kksmMiTeEsOKlW_aBmxrB1Gf_CIyvABin1lAaHXIhpofXMei0YxL46FW4rK3dOa4yIrSS1mqNOvseItcgQR5p8ZwuiPQleXWzbkN19AcfmDOK0eZTyxq2.1XwKaqERq8RczgAa3nRb3Lrou3IqjiQ5n1ANC9pcqxfhtorZ9p8JX2OQYW56zOAOxiMO9AiHExkPfo0yf5SDO6oRYOYWw4z1FOnABk6UIqRzRsoPH3yEvYspYOsPaCOy2vfd8aJZ2ZrvE1DKT_ZJciW.U9iVxaniMyvFy7nIY9g1qNRKkQXCo.zorsSAhtFOtFMzDypYXPg7msDGcv3RgdQVsyD1Y8NorOqK3pc53MR96UgbmbRmhnmJxhfQcIMCAOnR7crMLFSQANwvZYFl9.IE99aF9A.qiWOCxVRribI3qhyAno7X2o1IqHBZpm6i.cJ44k5zZ.vgFdBYRKd5cx3Uh30oi4iUAyhVPYrlBESFptppyea7W6IvE2qtkj1f9yDiJFin0QF9Wftblfyt1mEPOv.IpUbyXkAW3AJCvQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f346c99d212076';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\/3456172098?__cf_chl_rt_tk=AJH4UJ94QgtvVI2Q2CJ09BPDtRocPMV.fJ9Xo.ZMtXY-1739097995-1.0.1.1-sQY8mXdtKU7WjtTlyaElx0jQoVF3shTWo0q4xz72rbk" + 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