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-aff20gytl.mit-edu.top/post/3864705219

  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-aff20gytl.mit-edu.top",cType: 'managed',cRay: '90f379d72b767f7e',cH: 'voMkDFwltZgjEiygssV7B4hUIx7UJyDi5xFlMYFHQ3w-1739100086-1.2.1.1-jvXJlAZb_s0FsMr8gqsiB1ZaQY8Kkztlm2rM3V6_x.XbF4Q2beEQPLLD7.Psbid8',cUPMDTk: "\/post\/3864705219?__cf_chl_tk=PJrynEnncpE4MELF62cgmep20mu7A5voEO2LUS.xCx0-1739100086-1.0.1.1-uuN55Bz0ezuzKWMlYpE492AFmBvczPp83Plr9_806qU",cFPWv: 'g',cITimeS: '1739100086',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/3864705219?__cf_chl_f_tk=PJrynEnncpE4MELF62cgmep20mu7A5voEO2LUS.xCx0-1739100086-1.0.1.1-uuN55Bz0ezuzKWMlYpE492AFmBvczPp83Plr9_806qU",md: "y8BlCjas62plLvS5PSKB6r99cC_3JcL2VEtOtLaAvpo-1739100086-1.2.1.1-G_cipJLeTetzxdINB7AiArCmQijQIO6yMZ9SG2NszuGlp6SzoAEqiJG9_jC9byzQglxF2EcQyhTlyu8l.XIqBfRuFHJkgE13PH5oQHK6r0Mvr8jTp_jyeA7PWBN3oLI0D6bq8WcBrb0.JGss5IRKNFT.iIvrdDGnPi2yTKp.vG1SW8OF8.NncyU8yuVyRvzxPJrMGMgnQnkefvIitFrqZaKypQtN3I0K4YvwUFmB_cOR_UgowkZTI25buPl2OtVhT8X4sXgu9htRbHWlIig5bAgw_82Ng2x6MMfaaU_GSU6rF43l.bFX0_ymQaL85xsUc8l3qbWmm33e14yQo0dfbwaGkJqBhJcGqmJUCNL8YN2E_WjEc8Rn_CYGsIBDTdyzpc7bVpGn4omaXY6jInigL6TjlnN7YhTbpJQpxXIXDSbbdKROwE2X98lzm0yJOOi8Wh7xz4uJPnEoHtzzcPryQlYSlNljSK0sSx3bARQ5DaV9Y0gtyKsxvCxIjMO7_3YmPxC217aQPNUU9sMu1gbAebhwuXiGHclvqXofi_IphK4O1p3lCZN4RH.23SPtgzgHhbMbjmrG6Co8kV6ac9TQnB1M.cTWm_fH0gtcmKvQ5HaeDImXCBxNF5hUhAvp0J8CgH38lTBlfauD5bdrISF8LpHrpxG6gJcSibkRZUiI9hKOJ6S5MbfDpmRR5aM7_xXR4RtZ258gq7Vth1WULf0jV57UiFpbIAeX3X67AIphRR5Ssitxe6Wg0IbXrbxZk.ArywXcSQI.IDsYsIH3o5lhAeYGMji7c.LrwOGFvEIkyBiveY9xH1j2WpqN4r9FIyk.KnzuSeUj46HCf9_mGc7NVjBNTwiw5VLDPC6bvsh.D2ybbCjiqLKtDifASTgyjv4A5BscjBT7pC77Ul6vRLq5qL0Ip5Yo6WeaByAwx76qT.XOPp5b2SG.5rLXZmmCIfPjsulHOJ6Lbn3tdCmSSL9mkq.s1TUCWk9maxK5seGwcpVWbMsY7qCT1wLcdjBomaj7GcIrD5M7cRUYRA7m1yqxFjGzKZx0Z1JD9LZbE86eEHjBLzOgcfGp7JuDxpP9enVfd2.qF8Hq2fPB2DV5HqsIBrcuxYJ7x4YL9Od3ZeOH.F6.vbr33vrriQ8jkBNKIC4_ZbYSyL.Lp2wz6jFIqjsVYyoeOPlS2NXm313U4a13P3juggAcNn6xTqmNUEGthynKNS5h3eQLDtr7I2iPQoW0aqAUrL0kzUjsKdqsasO67SNb2VJGNJhDjk9ptb9xsMLk4eUo4SoZZLHBzPmCF9Unny7JEKJJOOMfGOODk248kLeFrrTEzH60CROpx47sexdliCSKx75fvM70.v8dhW050YBSs72XO3vjt_f.XuemGfaRIfXQH.kahn8UM0yBQ8qjkI_tt.F1FhBrGyeveqnZO_I4lLhw6gBu_ClqDvL.V9MY2NvWakflZj9UpMBep9esBpxHk48ZQcvFd2jNN.GgZ_dW5HQJa0L55fkQr7qZTAzkKUarZs5ucthY_HqT78Pt5cOzJN5NXnKVRSkM96mQZaBwYs6BpBmlKzjkcC7P3VfOq8qVfNUmxWrFa1iwS7c.5cxjQ0CH5.p_M.H8vo3JdeD9FpM4dSlmW.CzDp_VYZLGodB3.1rOmWkHttnp2rF5C_W9Pg1Rlr6JLnIIREyftnNdloWdq.db66VwQ.u2K6YXQe71.p3xxdViPj_nCT8HZRPaJUvk.wnAKYD0YzTKprCXbx7S2.WQQSXjlXVTaxLestey6NxwCSeHdttMSlCoUgp3Xd9iJeD9lo4fUtSoerySzoiG.F8c.I8AttaaF8ca6wVq.S1wbmTVGJH44k7JJrQOhOBrD957BQblTUO598sOGV8CaaaHs9zPHqGaUJuLyTIHpuPi_JzfB4TPW7y0pM4PM6y0Dd5bpSDcrOn5XcDWGjS211gjyiwah4kuAlpj5FTiVAfcIqPHIL6UYenCV1I5d7Jf_uoO95LzVbhQWU.8tB8AxmIFsGtL0Vf3kT.1SQeD5h_.dP3NjGy1Zihxg1LHHPCOyIKu7CqVkvCEmWbFeq01MK36nSJm03Yu7GGc_zhdDbcmfYMvcjZvrxP.bkdAatchMoJYqcNxFomgoMD5MUdylUx627mCp7C6nhREOeO9ksaCXiUcGmQSJt.MQk1s8U70yp.TI8Y6qWI.7s0IHBgTukRLku_fzfmWUs8us6RGDpHiuA.tZCO3BvvT",mdrd: "PsuyXrHARF4cbYn0ZDDpdVZPhP5SMC23MN7Y.mdxmMI-1739100086-1.2.1.1-AeYTCbCDNVvrvDDx5_FWdsVfCubvJ2txnHtfuHD1V.9frmFOy5ywBaGhGqnEJBD2m.hsvTcHzczFSJb0Q0tE_XiDW1_jvaNsiOZPJ7nl6npAWPqDEKkZSILVbOVthIeWdRNfBnrgPBcMY6eujlzWKHAAGecBv8wQ9AJ__yqKNYtfilTnK2KwzSKk8tjIrPyG7ET_Agyx838JBYX4m2V8q3DZm9lpAtx5h.d5WvlR_.Bzkl.7A7MBuS7CtpfSmRXrCc9wkRzSlQwk1xj_LeQj2qvdeoK7oa9NA4FmIfFa7Mu20QGdAh6BqNIoSQf7q5MGqNJSNKih4bWppS3xei8oNFNo0rTbTRUhuVoEqz_WoFfOvbQuJN.wCKiF.vlzcaJtFRyTMtZ_DZT82BWZXAbaMCO5H8K42P4zAIXUfmXSqCHhaQpJABlLsvstkiAm0VNtKs29f3f7k7rMH6z3Tz4B39hoKedoSsXPxz.OqyBatyquP7EOYtrNNRpZUvllokhqFqySlDBEva8d.1NzcSse2.hT._mu_Fg4tdWC2wncVWPZWpQT2Zh0Amu8IN2geQ7jTie0Xv20WdJw3j8ajZzuxbt9bWLBUSutcmoHPvspCAinB7AM4rWFJIhqBuXJLgTvduzRhi6cJR9KOr4FtrKhFBFVK2jtqUDBCyJPt42JwgGQqdLn3gZHSlSu_Uh4OTsrUkqKp6gz12K0PwIVcTp3eodrnzvYdg4OhmDV_nUSe4P03j8WJ9IjkEWzFFpSroLZ1.G6g7Sczo8yHcf.Mpq12cGj0GeDXKr2rIPqYC5f.LMTi8RXJbqI31AP1vxCqeKjdIe_yMdOv5ouLBi6j4Yjru0QVvw9iz2nL34QRkx2ZUml7KQ6Irv5RqWxdZBpnDA4mQlGHtJkcVjXgIgiLoSWXNuAsyMcXrGZ0Qg1CpEVjsidJaZdFwO.KIF71.ZyfCRzu_2D5ZZfC5raMpPTFHj2mzCgqs.rUrXQ.T_61HGGd.2_bSG.Po4L791Ne.mU7gN1v5Dw2ynHBvKPlGuDtOZmqVtrq_NatgAk5mbIJBeJW1xC0HFGeBg.Y5S2PdlW7wawodb1F6GdM4bW1ICtccyAeVit0ZILQhU.peY0z6uXqy4_d2WQHR7D1Rzj4CrPBm3bPn4JuLG6I3ZM6B8_XhZEbrHRRF8O5As.XbRBkaEidWnFVzj6x2C.vma0xp_mbkQd2E31ORaH8TWraglFtnfJPZU.nCypXvM1kyrZmnPCISd0IXEDq1F.I6Bw8ZYZOSVLLFarRoEO..xHgXdSOBXGwXUtFY4gZFORbGQh3cbZ6F8CRqbWF0BLhGGfom6lvOv7iiem0Kv6XOBXm3n2Qw3jRE64FLvmZkmU8oHqbZw6G1w4zFym3W.Lsgl0GPzYIEaDwswAii7iIjH3btonPYebBCP4395XdHX1KmrH6g27OvMMakiFCPCUWekgy01S3.I5_5pCVBQLP3wKlwFVekG2lpyybjyj7UMSXx1U.BeoVaMO95hx.wKr8w_halJbgHkVioSsUoSZpbp4BBbdenh9A.6BCeolcicOq2nkr5avTJ10OESf_6rrQcSMIM81wu_E3AY0Nm2rlQczYvD5sh9OPXS7qpHLgEKiXyhv7AvHDIhe2bq9JOOqhB1iZwBmOSPxdnLY3YHLdfApeR_Qc1u55mwshvl9km09NAorm4aktOpWAPx1SH2FhnJyQEuFGAg826fd_IAvW8kIopitQsCdn4o3G8Nwfe29XCzKLj9LgHdrN5rnrZ7HcKBpbf2FpN1mokOCFZKU8Mk.cctsUsR.0z2uUS2Mf17NEgDQ52ovp.U"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f379d72b767f7e';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\/3864705219?__cf_chl_rt_tk=PJrynEnncpE4MELF62cgmep20mu7A5voEO2LUS.xCx0-1739100086-1.0.1.1-uuN55Bz0ezuzKWMlYpE492AFmBvczPp83Plr9_806qU" + 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