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-affz3njk0.mit-edu.top/post/6859437102

  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-affz3njk0.mit-edu.top",cType: 'managed',cRay: '90f823b1fb726fe3',cH: '3s4VOw71HWvvcdfKvLo19AZ6F.gDJztV7lIqM7BbK5M-1739148987-1.2.1.1-8e1cBU5x9_C23JRVVJUBa4VNcHUHpxzbzIBsoSr8D2u0sblr_a.mgSJvUjY0je07',cUPMDTk: "\/post\/6859437102?__cf_chl_tk=RmH0V6E.NypoMOU2zSQkX4KHbt7UL5w3bOXb3HhzeM4-1739148987-1.0.1.1-TxgpxcngwfQHz_m8Vgp9xeXNXPDJxcydHMJ1_BuaB88",cFPWv: 'g',cITimeS: '1739148987',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/6859437102?__cf_chl_f_tk=RmH0V6E.NypoMOU2zSQkX4KHbt7UL5w3bOXb3HhzeM4-1739148987-1.0.1.1-TxgpxcngwfQHz_m8Vgp9xeXNXPDJxcydHMJ1_BuaB88",md: "tbe6s18xGjOi_BROez9jIwdPyea0AdAnRIcXCaZm9aI-1739148987-1.2.1.1-ccQ0odyDjVsw6daWOJDlwBsPSaoU9TPhsSx30VRP16q5zXUv5Q_NeZX94xVwRgeLGbCYFkmkG388wax2P5t.Vulk9NIbj2Y34WXoQTk61MjIZRdkk8Pn4ky4O64LfhFwT9GKFGx8wUqKE2V8NR3QwnhOSC7nP10Va.TH3ThrqGTrsy_DH2FHxFWebxvDGts2ySrQaKeesYb5OeVyYfHpGQnBz52v1bG5EJ8IyY7o83kTup_Ki35F10cMOKXGFX.jOgrDtZOKurMiib0FXB3FuFIz7fgipT2zJ1AmUexG1PptdqlXJVHyVw9KJBpg9ITizC4LFdqbygDrh3WxOaCs005EcvRkEv7Pa74.ytzt5giXY3FjqdHOl0mv2O_p1FIzHWKmD5tFvVuNXVGBSNqDQCaXhaVuegZ_CHKEWhaUVd4l2uSiaa5sCyXvi_Yh2g3medcTxxFpAFsqAwHjUtD96pkhJhoc33RiJIO3s08zFLY9P2F3i34Iy84MPrfBapgiVbDl_L3EWriQHpEF1NQjKrzIAj9MNPJ50QS75nt0wQWpriP6J8KvQ0ayfBMBddgINvv5zTPdk8iqdjelIWvddK0y.iMJDnzjuWJHgpTwOXZ3jyzytab4gK9XyAwY2CWbvj0fjlJgOzIYghTqyJTeDFiqO_.oioRFvQ_Fq7aGOBq_tIG08gYuwRnnWdLZNal5hcfMJOCK5Nqohsy73p2n5vDBnUtMQGU.yvmpqwTkeuz.P4vW5gyOfzTPEkF2Txgj7b9ZLKb7zmSQIkOuGQACr4oB4_eJbrfa9u7rru8VBJfrendLxj5yjghUlByTSyCbHpSmJg7wPYj90r3W0pz4poe.zvNEhBHo0DVI8rn6HL8m4GjhEn3WRCY50P_RPfOioIrbozgPJWUzMHrYcH9AgOdYK4f0ykd3210plxZ4tEZDzB.htTCfQGxlDuLpVxFeFKpo3b48LP9lVwE85EfGC1cGHytMo4VzfUuD5jTJ.VSLRdbCsnfC0cgi8eo1MvD1Rss4Gupaa8J1Igmidz5NrC6SHueYX5Ri6CapCjHpBb902YCoR3esfTAqcAxr6ghDs.EvXxuA4W_nwTCbHulDZU6LHFxPZIkxz9cuVczHM7MpeK.TcmI5aBA8ugXvqYNUEsEkmHOEy.8ZDAQtyj7rlV0aFqWkGXyPduiILujNr7xMNP_UYKe9KhJi02gcHiOGuAZ7AZIqztS76BGaoVESE6gTYRFEPFlxTpY07MklrHLaoGcB7O8CSLJbuaFghXbbeX99M.cscRlrOiTVc5vHs9ghv8xqAuLU2H2FOfR60My0vVtAAzK0T4lQB5.yj_Jr2PRxMe1PTJhTWosYPArQXblGSyKZ.9oeEUQbsfLBQU53_v2KhD_A2eM7ztiTr3WsSDV7MtilZXur87zRWgQqqYWohbCkO0yPj5kxUDOCEfcFcR2kOWG58GrMxoHLk0GWtm7dPbUrvyN1vOuXsqiDK9G9fbTxD.u.bnC9sYstvlTROEaJmPwGsMaYKPOM1L1uT_ZTtLq5CL0Ldcba5sS7BNz_F7oFZhYIjQgT3NcJO3QEFSlW1ZLfCoNCvY6FRx7b8gf8Z7jFDlQ5jtoXT8LryLC8nZO09k3HCgxFCmy6PQZNxUyPqaFEkIhCgdbMPVJTwbqAR4FCkCA6ZMsaOTbALlMlnTVVDGO5EMahwAZG04W761yGo4otVGzYZ5EtMoDKFLuVhXLgV.pEZtYS1yviVNH.bmPVEduuW9pi.s8yG2iyLwfNqHPQbYUYUkX05k6VYlCmP4CdieudW4dfXwj8MivJ1nKAcfTmoMrZG3neyTYqVneD9NFzBFMLkUsYYPM4JfkT8_ENK7_aUn_XzzIRP.FOwdhohr5l7zeWyQQD29NV_C7xjlx0UrPRPJrr3ymwXET2cK6KU1fKwdJXQUG0P6kv0bVH7jOxQUkq1uBOt19SLYhNhrmhwzHh_mzE2.1XVjpF96yXPxuM7lroFb9FE7ajB4cNVdAdJvklcu.CTEl3GK01pGp9RHeZ3Me3oGJKtRXgAHtHuj_1YTJs9GC0Au_2lasKeQyxF_HccS2ta_zD.lLhVEXv_qyEavRbIYEtPBzRdjoWRJXiV9DpReXakpsN5yZHPgnJ4L8PGR9Q3d3tNDd8e7_Xsx08kTpEn68Le99ZnNmbiC6KTJavQ6ix_D3c1WM4Dz6tNnq2pWY7QynawBvZTGSWfP4LoWQI8rO.",mdrd: "q4p83WxNK6De8seKQ8yL.q4RJspMuQHzv80ldAGgvtE-1739148987-1.2.1.1-oLnA47ZI2P4zn5D0ZjGmpRTMmyQE.bF3WLZmt6ugTES9joZa0J.gl1Vr0MCEyIieI_PQOFxWWwlUMvCb._EbVkIcw6g6_4tAatIiPMjpHASFpcHjgqnGB7sVoC5.KGatN1CPJJOu25Pxv.9RSgG3xxrr7nxLVMr3nPcPD_RNZ5ZUkDSnAfz.2enyFrMr1Zx0.TKsNe9yby1ZgebjtEd6v7_KZ4h40AjAngbUHo49KByY5GRDicRvpd_rjH0jSaMYWOiTmTKf4PcTp9AJnhS1o83d1unqQ3GTOdIfzajWBH8A2zOhO6_8hPkZuoASpDQSj8WIrnDsa7x2WERc.77gcWqWcYqFb6.IfJQvlO0_3XQYU1TVe7MXiOH5UTsO0Gbjk7PyshjRnPRG6l86pQlUWXUJABGZqyPoy233rqifAn5.thYJE0ziflypvbJYNELhI1oR1pndxgW5IjUg9uersYSOvSr1nktrU44nxqoKcrOyvfm5U214exrwzz4FnLQFq0UcUVmi8hi1M9tVv6dYZ512ojVdKh3IVCIWvOnmZF6QjFWMBqbXpXKkPtvPjz__R185U9LYqM_RvO840Cia_IfwwaMKGjbUDc2FFsGs0tf4d1QCcLl7uxZ5vS.BnPEuu3_gT4DyzKUH9X9Op5iAMRcWhFPNHdGwko0MqTRm3ZZzVMuZdokWjxhE6YvOh1hcbbAPHSrGl.eO9T7YL4_bE9qrUhIYdZRIoiHE3Dt00_Mk28YsdNwhtFu_w72rHNiOji2WS3CJUz3_NuLQZKeBP2dg2dSSaXKGkTpjU1HUJxpZMsk6pfm7DBHneVpG6Vkgc8Ntn1MzLtlM13T.TZLD4O_DCxfyb.FVnFr2Ttz6goBvYPpvk0tybd2.pBU.F74vNrLIWNKZuDoqLXV8edGogXKrmfp26LXdOtKtmW0LG_WuV1JcCs9Aw43ot9BXUwe1MfZkRZaOczN9KS35LD0i5a0f_fj6MhD7.yGJ0jHuxCOrzMT2pYY4398aGQ3ZWJ5LtsEUJy_tz1SFFX70u7T5oR_W1HRRkaD4c7YeQ66klnH5JV.MRCcHL9nhAEt.v5OkyD29hflh3oi9k3FHKwlISlct.Z4JyprtSO5dU0WrN4_xx7oNFctFou5iIJbjA_Qh69k_BAuzrgk6w1KQIdc2OjuPZ25rGfhIPYFNUO9kSYbEjvIcDq5i05S18lg3i2Sr_ilx1DX8Nqg_4QSyYl5SxQ44aJBmQJGgm9DArivVgZxXVeE9RuJ80GNC_gtwpmc4YhxRtAqIPU48QAZ2SqQLZLGLPjQYXTp6uNgRWQrayS0bV6R2Y6D.rUWDF_QTUatQdJWRZwfMw0EfnxK3RIysZrD1q_LS9xE1ZpL6asMKnv8KZRPxT8H8upF7H4_mz_DAkX2LXjnUriYjh6fQLs3mmjfrCqGP5hnS_LZnfOLS8zMjZ9MHzm5aZOcrRa0c0JEWRN2Fu6mpC3iLHm_KZQIxw5sktAISEz9uC_Rvf.bxgOOD5WYRltd2q9_F0PalFcvGNy7KlfILdHCSz_Yn6ByKCSMrSGd6WiVshy2cpjxZ5WQ7oJWOFER.IJxJgALaYszjCLaimEtW8.HtEH2ujy5FQ9IqbJh3xvqEKKQQv29EbwjVTDnEf_x3VcmZGIvzDRcWFzfQq.mb8X8.MDCA1oEyf0RrnwNn5P5dFsDHvkjAaKaDRnwLleUQtiVy.5U39z.KhjSisbOEKyoWYvjyVdDpAgf8t1Rd3GCkz08Pt_9iA3iCLcwqVufoJa5sTOZz895PJUuAT1rKm.ujoe590Ki1tQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f823b1fb726fe3';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\/6859437102?__cf_chl_rt_tk=RmH0V6E.NypoMOU2zSQkX4KHbt7UL5w3bOXb3HhzeM4-1739148987-1.0.1.1-TxgpxcngwfQHz_m8Vgp9xeXNXPDJxcydHMJ1_BuaB88" + 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