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-aff3x4ny8.mit-edu.top/post/7384259106

  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-aff3x4ny8.mit-edu.top",cType: 'managed',cRay: '90f2428def002084',cH: '7nmQIR5hZpU9DPasgV7kvGoyRyejNt6rMcNed6JCEcI-1739087336-1.2.1.1-gYgY01Gd16XTiLWDH2BTmHB4.AXIr6xQ3.bMQl8FM2yNaXf96zRx3KogltfIsO1g',cUPMDTk: "\/post\/7384259106?__cf_chl_tk=K_R3uCvslwGWnkFp_EDyCRdoawL8YZNE2J6idPcFK.c-1739087336-1.0.1.1-NxWjyhRDh5Q1ghqoK8EEsif_cSlXlzRNb2lGURNiPj8",cFPWv: 'g',cITimeS: '1739087336',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7384259106?__cf_chl_f_tk=K_R3uCvslwGWnkFp_EDyCRdoawL8YZNE2J6idPcFK.c-1739087336-1.0.1.1-NxWjyhRDh5Q1ghqoK8EEsif_cSlXlzRNb2lGURNiPj8",md: "FAZEI6UbUqVsi5W1IwNngExwREbY3sLGBbR5SNNN9N8-1739087336-1.2.1.1-myQRTfUgKCCZBv1ynvf2.jL2tHnck20ksOqDI7maOTVawO1KDLbHSkwimymCRSUHuAGZ49HlaxpqoTKJyokR39Ae9.YYER6dQLgdRDvGPRUBzN3DIBeJq_c.h8XwEU_5m9iyFLDemF4PgCnQmD4ZMKyu62CBpNvF8VghlXrymdSJevPOp.6rE96pc3KYjDxw0u.pG0leUwfSBJiUD57RCJZH49Z2jQpGJ46Vs.ewP9cLmtkjJ3BWDWjec5wKCy8cS6jplO_uKJeDY6wcf2xTzNfciWWJF6q46Dk1vVNoUB4vauxkrYwu5cfj1Dx4LrH4mXI4gxcNJK6zQOicyki3xJWtxPR14dYlOd8ULmMxxU6OYCACb_MbEiUnUaIMgCFC0m5CPZ9xtHR75air3PYOU8ccGY.7kQVZM.wnnMQBTwYFBMTrjHMP1UWXAgvi.AZws5WMiQjFHMepwUXEVxHAiLEhAeay3pvkqEAnWBSij5etDJ_XlA05kZmE40.Fe9cuTH3YPmP8SfCRJpb._TXnW85hhJQ2Ub7FikCIV_Q7hXCNriB2CMldyV2AVSD8_h2lRLArm7Nenb6ub.dlwD4Rq.mpZuA7Jy3PXcSsWbwnhIokuMlgUS3hrFj4wn7sI2OJmdIkQ36AfUCnmQbarfHj2WxBaWQ30.n.aXTzlNQRjDIvyLH8fvkTXAQNasaHrj9OfnQ6DUmex9lh2DEumGrjccvG8qqvRJaMEAlZWZACrwX0SolSGTS9usfg9XE_PZfskLnL2gqpDv2wRCfM0._i8HHrz..C.g0nvZuNDTt3mlWgk2Ng1aGQkknbgAdTaDynyHCknySHxjKwShqcBXIiH0zp9RrCtvUL6zsgrckoNa.RtHhCKQ8SgkB7CNpz_Sxp34tjqKRZWrSu9X21vrgVvuhtWvb58Oi7DXtRewe5zPpA5yMEkog2nmNgsUnsCLqZbyfYMY0uaLQeOwVoATxeWD9qEWDJtYmsNVDqP1Pm306DOGxV5ZOJgRmJkqshSbmGG6tf7S.3LaptIFHb_MN.dL15mugrmEa4fPgmxDjhwZDCPvmah5Yr7zRYV36p1UJaHue.mAXzDRlh_RgInIIPYqTxeSnfdOI7R2yPbpDNTT8HUhmQ9MRbNLSCerq66cx7FGAHV83EOEYdyUcokf0amLpDJgQZFtthovlyT0Q_c61gKd1hYyeOk46Sh.R.nAI.mzdz2OTHei80elLfQdUnhjYVdBebhRUF.IKOS_ZU5djp5Q49QPGzi5WQcB_p4UdP8qjAkkupxoT7xIU.EB1U3bGW0ByoUY8C4flkPj22jFCVN7QZGKAxJbTjPg7bNhHxVd.r0TZTiFkaqLGnW02Xw2vySoRFPmDZfNJa9g3.ZA6p2NwRC6xMvXemnlTMHqFrHgfQx5C1fFdKYu_c8aMb5gEoa8Tz0s27ez0bbWqXIzydArlaxT4_zamW4.jqjCHPJvYTpzJ_Nw5fWKQZEojARQ5157IfztPfOMuKA4LtrYc4ta6vLb4NNiM2ZI8DZ02qcv5SU6mVY82l5wiA7fDJASifb5Xu9W_YZYIlj2VpWWvT4su8_bH2GqNkytnNi2.OyAxwUq4S3nWV4fpZx5B0ks0nVEGs5jvhjK3qScmI7TZ7fj15kYHsIPMzeI832eXPyTNuforpTo1YFZeJI0cn.CwImS8T08Y6KXdAIXC7sk7BPw_7WygkPOHW2c8wEYQNKAHhNUtWO.dCktWHuSj80zsKh2gt3j9dw6YhOU8lmyeAjw4oRprDbynDXoZf1kZSYiacT0UpX7UKQdSUfk3ebE8TGwlVVXwSIpE1r7M3YMnazKpeBmzk1kbxCdPghiuUJwbJLN5DKUvN3zcrtErPwggTaJDzX3pNLmsLY.dMaOEBlQjcQX1_0L986vriC8w2j1oAQn7mkUFcfkiTwpbWYTy.A0FTsC26oB7QNGrxi3Zt6eVsjcFrsLv_GirpeE8d3W3MXGq3PhMzhdK6Jegfp6UexkUScFd2QqXe1rWhzGZGiXXqxm.w1TknT2gvi.DkLPIxUalt6R9.QoanENlP0HtwYn4P82pJ2vXsxyphRruBVFK.Z5.y8zslaQrp2Xezv9Xgbbrzg3eC7JkXjje7fO41GZONQAXqTbI0TiUIMeuBla7zkZUukVKGbspI1_woN3J7OSwuoLeZDftUPWFz4sgUKzfbu2DI7xpojoYxVUlN_HrWU.fZqxlnG7zqqctI",mdrd: "3_ybJdPSsDw1dgjjC6K3CHUljwtB4UBBUsI.jJcqZJY-1739087336-1.2.1.1-z4KBcabOnXGVgkpJrE.YP1iYSkzLYKbeJJipWqB31z162s8Gwg_w2.S1DQnayJvZMGwqcNFFKy8dOliEMFdgzWyWOXGDHmZMJ1RJ8N7BCKySgRdQhnUU5E6cnYWCiORAwQVUiamAPQj4bfCzr4Fzl0sSIDlrzDOcdlP6TJzQKyFuqSWusJNVLgwxO_XdxbPHCNK4gGyLjkW_CMknP0VKisTokGKcQwn6vzTLZj6wwGWU3R8oeO3d7iNzYsCAdVOMZRT0ozt6MGh3YoXEH7HQLQzXGgtHBfroUgbi8hk2onkrnj2U14D8M_KU8UHafReCsAMTBCBFRu9m.2FMC6mRQ40fgYsjlzXCpzyFUQCYFAiEfV3lWGfteQ6uFt1qQy6T0t1aNUhLEhz2k6f2ShPsKbIeYyZ.J.dJ7IGq259cwZ3qwx8_6GHJgNfqLeWoWAQp9Z0l6.LANO762dnbqN.9iI59YJNvWPLYRVV22RkJmfAcNiH4ufnzvQMiBSlUUOAPQXalQw_d7W.unKBu.Uqh7chl82CxRflujTSS0kRX5aGrnLgRJImqWhQIKb4fuZquiyAj_GgF9Opvwmn.czpvgyp7AAuPVv0m.h4chKMYsODwoWyJQM.CBEPMl7.B0usSVbbJ2SktttnbHAL41zYf4krmsoU6kM9TIZK5LrbXvfpkLGEyZTYxvywdHL3mlO.B8jG5GNbLccHpPmMkyEgBIq.uiz_cMNtm.38_F6YmPTNRs0OXLS4ZFpaZHndXtZbJd9982bmdCFd6NdpNifzK6ORwzyGp.p8JsTiulLeOt2ajboUtJPxhPnB_NrR2HMkT1QaMHgQGKijvzi3gtDbOcB3nfu_8qcMflNbpfanBKs4WtJw7U952TeZ.8EkadxulsaZpukGZm3IllLJAGMMZL0OV1TfQnTZwUDTPVl6k1v7.JN4CmH9R7dakLCCZvvlD1VEO_otwZJmzt1HiDDbWUcAvWhgO0e_ur89c6.1OyKr_WboV8e92RM38Sm96FFZU4mY1CvcpZoWpEOH5RQA3J732LE7VnXVgb3vlKRjLZ3sowlH5vwI.VYPOJmnPRuo0NvJxciZ8zRj6yJGlf15oZwYcaRuBwotwmZ4DAZYNBoBWbZz2XXy1XH88NXG18sDEazkB_iqasawaPKBYN_jBrqYs5Wohu4VsYcpgoF0YBBlLxjvDQ.ctxZUHyEq767UZ_X4GN2mqXBsP25OEFVQf2Ay3Mk89JG7_TAg4MBcOWOdPAzE22kv2DD6BY67lL9mk7sQtQbAeURqQlBVGEaBq2SOHMYl_nkqMZoDJP7gWnjU_9JAIq8pawscRDh4Ruaw3WbWYbS84ehg6.ePe1oJjf4oAFjkzg3AGwQPA9P9SDuhuqN1z6Mgo6E4Gjg7TUrzulYABjoz_Qc7d0RE94k_pDTI1GquthhewyYhkyi6jMFxH6KxrD.1SXo_694YziEkcIlKmzAKV9M3uXqwgwTii9y1mYVqwUYbHpYFbB3iPOZRMDs8Jt74NIXB839pHYS_EWhbWVoth8h3gh7dNRxUd8ztTFaWlS8EKREFStonVb85_vwiObT2.gEg3AIAfWHBjJwxwGHwnGDDqfBQsoEp.H6lUQuF1hjayf6IhCBF7tOv08bjxLxl0GrGJCMkZyqGMJdm0ffC4rzpL_JFGMfifDKhP6FFWFzSCPURmmt8h7V30IXV3aLxKzUCEtsEANmhswIqlMdciEBSY6MxXoYkcbXSXNH7VHBfEBu0oWRT4tjeUP91C_AjCOjX3UKDAYfdr53Z9YY6EpJyrxACocnOYEA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f2428def002084';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\/7384259106?__cf_chl_rt_tk=K_R3uCvslwGWnkFp_EDyCRdoawL8YZNE2J6idPcFK.c-1739087336-1.0.1.1-NxWjyhRDh5Q1ghqoK8EEsif_cSlXlzRNb2lGURNiPj8" + 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