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-affd6fn6r.mit-edu.top/post/0569173284

  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="360"></head><body><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-affd6fn6r.mit-edu.top",cType: 'managed',cRay: '94a17ffad8e20619',cH: 'cl48LmnXvd.Y74MbDnMx81.IlJtqUsye.B9kxQD.tfs-1748977924-1.2.1.1-bcUzk0PUh6uShCjvBR4PFkSILnYDy8S33oWDL0dSqboWZHzWEhwZB9gA9190s0Pi',cUPMDTk: "\/post\/0569173284?__cf_chl_tk=qeYFx7FHOSTatYStnosC6UJbV5.P_mLv2g.tf2NiehM-1748977924-1.0.1.1-B5qn_3j6sxAFcyILZZ2qxm0qms6yADymNSKim2uLcUc",cFPWv: 'g',cITimeS: '1748977924',cTplC: 0,cTplV: 5,cTplB: 'cf',fa: "\/post\/0569173284?__cf_chl_f_tk=qeYFx7FHOSTatYStnosC6UJbV5.P_mLv2g.tf2NiehM-1748977924-1.0.1.1-B5qn_3j6sxAFcyILZZ2qxm0qms6yADymNSKim2uLcUc",md: "PGKF10E88y0LiarcqwTnG4.xD1InWvTRbURzvhfN6wY-1748977924-1.2.1.1-i0wjURs0kuV9lzNhk3iaRDbzFcB3ReGwe6kTNHDKPnBDA0UVQCxGty5_eweBmRERTN_.FcA_.BLnN5O3e9EgGToJF0drLo1N1Cf7p9biD8t4O1kcW9Q2vOncpuxa4YymU7Zb2fJLQfInJEny3UAksk_01GSyM1wBlqhcv1z2DiS86hOX6CLm8nxv6XCD0P8t.iumjMV6DCd1_k5hdCj7sOjimAQUcL0DRXyCwzOkuhT9Ymrz6LTjFDM7BpX_qHhH3q9HUbDrIAGgdBoCe2epq14559ODxYgk8ph0X.exqXbCjL7ljffgtuJFmt7CfUtWyVR4tRotTnENhY1TKfl.L_Exb66aNrnnxN4arvmMw3JE5WzgP2RMzGuw5Dv_LnShrHS7fuZcqBatIUESg.v68KGnMBJbBP9NC5QYOzMx_UPC4YsScVz61tWdKkPwfmfPIWojkqRXwSyTTmris9CjfybY1Ws7YwybspZPgYtUB_t.bndK4sVJZALQ.hrbDhvKEPMfV5Q78ZORZNIEnejJ.C3IhZ.nM5p_mLY07EGs3i2rOW_85mLyFyRkxF0qC4Hnlsg9AQJ.uXoUb3wKd91sc1FCPERl228ifT96x5sCQUo3.zfq0icB0RUyxxGyIUVu6K7QbhY03Fn9_mQitgiZoP6tJvXBaJ03nt4ZwfoHj9FQoNF3OYLC1_olXF9xLhWKDnhQ_rx4gfQvcqbVmaxKKpIN9bAagSQsO7Sp8ePTk_zwy62eP5vyTozu_aOhyIDUyXus2ZYCYBn16dbyc64_InZGpaTna7qaR2mqfQCzhlP_CC6szvOvcqxC8u9YmZc9",mdrd: "pwk2Q74JLZBNEMIyHLfG5VPwPAV1QC3zCJRqo.uhy5g-1748977924-1.2.1.1-4RuhJhWG7iehgCymICxlfuhFK.94s6ZxVOb3wuEchMaWNbzmhfn4OGSGhL9hu2CnenuZtaQtB8tZHNGSNTBGasRW4Zs9QgU244DmQIHEq5YnAUa2lY1yF5TrCH2ZihHoI1ZAumVqfhlox8RDx7NDz9BbaCfKHFgjf88IFnek1RGq9NkhCtb2iNe2tGWXtLSlMPwxTbJWiJS.ZM79H9CO1LR.2szxU1wkA4FuGQDyM8yMMvV42EyL3ZG4ic8gOEmxdZGnSGcTYf5dSBULguWqZWXyU8IHCkLVKYBEq4jlzkJRaCUgmK8Dhdpt3TslAmkfKWJKz4m8EMp29T0srnIl0K7e7_Iv0PRkjspslJHUHJz6F6ZA53ZGppXZlySjpXYSb5knYOuKibA6ZURSvM9FfpKIrx1VZEciLuY8zUWNhJFjj5ZxLNz0u5OJLhNLnMnvpQusxRATKGjIYj.6TI6XUFsdHO62hXdlkLSXiHpoHjO2tQQn4h4OT7yJnHr9gZyfNwmhzw.eauhuz8SdZqxibu22uIXZ0RRh_5or_nanKqY0NZQJ0je.ETEl9l80wd3vgLhnAdPpB7bTpSA5AU.5x5P1pIMt_sSBaviv5wSh0ycwXLHwvXDuabWXEHOd0Bw6IFDQKrOEoNnhdAttoDsVtF.cTccc5w7L7Lt5XrRJL9FlI1k0FVrdlrD2zja852RM.hbhxIy7GJlGvyiS_dmyqEZodM117ngH5T6Qa077jNyCo4Oheozr1KNLSY74x9Gpvssg20zeu2gEZ3BuEPq5rFl_DWeASQoZWbM1_QMkRwCkb4McFPA6oR9L_1Gubq8WKZZkMxUUiiuaPO2ql3iGlYm627izup9YeOTAChwQ_XDOty3NicmyKv2_ueNbhFRgm8WKHuGPUp.WcGJYZ0KdMVqx9yeoV0faWpvuPFm4d9rHdb3mv0D6Z8.cWaPMQuFi360MX4nNCmEE0ny72AUZ8RvOjR_Nz622IFpgam8Q3TeMVDgivBk6J3GGlH3C9VPQJ_ifVHQ9clD6YjKg8095Whz5oOO1lAOWrC7QRBq6aUlHd68f0ROFGFVP_n.pRd9.e_TQ7C2.iV4UXKO05gyNvVEfLsWeVQ1tMt0aGMBxxN3V7zQMz1YifDJoGhk25HMqiaL5TPmUR7J1450yi1aXOFgXuzhwpsl8adGJ.tNazzvyH2PPcMoQFa9YQUNjiI98aGPPqJM_tlAYhqwcEY.cxyA7WE.qH0N55h8LDt.pLrSH1HgclJe6uG7Do_ktWeCn_oiHQmsJw916pybE3Pa_5mBbHAmTylz7N7eDYoF3OOy6yCa1VlGV0uxvaWyJ2yYuSPt88w169Wn3HkQDP7VrzJhp6eDF71ZQgQ1eSTeQFB_CZb3Ev76FZSyfzXAb0YIiQGBZdnXFXhZZTAqPQJSt.AGFiYJBciMGZ8dg2wkbneDIuP7R2gb6Gd4qbDjJa3Ibye.r8jxXO2HmPUqIG96QF5Y0pYu_frMAq96kGlb6FHm0q9IuBDr6i6xPeXq50615v.cxptycJ3bSbflEOt4oRPd2hECDAyCuexxPgGIaRQqK5UXuWLIb2jOFzipNTQmeIBz1J1G672NIIS6L4eTgQ1F2ICk96dspAp_Nz.2WVMrtS3yZYp1Y7qSSdUti4f9SNXATJkQdfq00Sk_ldKt3XNpXaz26I9kp0eN4FBc6ie0y2tEsYwEu1ruK3YFcyfmS.Bp7pdXgv5LnTHgHFYG5JWEPrcnMoIwjYIlCEzEyde7B7ViD_cdOseTTeu.0zxup3EG6uY3EgI3RR1kBzRqFqgrkIGlUSag1Tf8KfkDQ5FMJRriSU2y8E7b1PiJmGwjeuuhqwhOYXyiZoR.fI9aPZYm7wzzTr0qcA9rDznCy7UE"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=94a17ffad8e20619';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\/0569173284?__cf_chl_rt_tk=qeYFx7FHOSTatYStnosC6UJbV5.P_mLv2g.tf2NiehM-1748977924-1.0.1.1-B5qn_3j6sxAFcyILZZ2qxm0qms6yADymNSKim2uLcUc" + 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