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-424954542799.mit-edu.top/post/1957682430

  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-424954542799.mit-edu.top",cType: 'managed',cRay: '90f28d05bfeb0829',cH: 'XmmfEh_61DDOEG73y1o20ps72nApXODoDzojJFGRQB0-1739090386-1.2.1.1-xwa611TmwXf211pNdAQDz29IlgNqkrYMvbVzm0V11pirA1IN2Vmq2JuK3HZgKLlU',cUPMDTk: "\/post\/1957682430?__cf_chl_tk=R8UBYml3RPcjUBBSzP1F.yRqfg8bD7y1K0CIUpQItKw-1739090386-1.0.1.1-UIeSGXtCu_fWgz304Pn3_trOIg8sPS9h53RvDsZQNjk",cFPWv: 'g',cITimeS: '1739090386',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1957682430?__cf_chl_f_tk=R8UBYml3RPcjUBBSzP1F.yRqfg8bD7y1K0CIUpQItKw-1739090386-1.0.1.1-UIeSGXtCu_fWgz304Pn3_trOIg8sPS9h53RvDsZQNjk",md: "9M6Jj76UNG7zqTfKTb7JZVIb5a5njqP4w.pLoVYwuq8-1739090386-1.2.1.1-mN6q0Sz4sMNmi5DanOKvVtn6VEHrCPDysLrKzlx7NWTNQLG4jbVykvHdfwQQMIFWJ2dNcBccAAYDDQvQ8FnVFwWI7HTx99TAGSb_jOcssgUkNsZoc5FBqlfnZiz.OOwU3mFrhtMHfEF8ZcRCbnnj1PappwSam2Bd6zQ6x9uYidpHjoJMJAHYV69UGDOaV87_ERAwmy0Nqg7vZiYvcTyb2BcjHa4nVMWoCioDPG6EPHeZ4GF9gCalTQpgWG9BBgJaKEiCcIyrUDZtnjDSFaWS7Ckl_d9dKiLUxaO2SSvSL.c.J6dNACe8PFVpsCl8YTwM3wzyNbc.K_OZXYK0Sx0SrNw91AApNRh.IrfW0GN6j0bpLnUte3IVPfo9yvBxcnzHtQ7CLf4Hfi3yrD0cV6ZMOmqgoD62pUOnLRc.xyhXO1xOPRbcYwvzThuFORDH2v8URk6Qz53KPEkoK0levjgkyG03iD2OGc6v2TdQuv.4nHbk00tscWrXq.nweYpIHTOTtgM6eubvtk3_8IcGNxfzWyWlmIUaDevyDoGpEJHnkbfVSWMcWP959u2CCXEElqm25Z14OPLGxzcHJ9njAwnZrliucQdxOaM75ygbiyu3BCm5PTsDyHnHzBMrKQuipUHD4_j4ZF.aXefGj6NgM5mO22yjP2jbn8dzvQL7ad.9baZqbp1ETOtQ6MxsbwuW2KLib9WMe0ng8lGz1gDwxJhRjE_PtPb24VTkOfrnTztw03Tw2JTjg8JXuLVANFepSxhRxQvMXP0o53tTZPuGX8R3TuIsRkXfxJailmPpGpHCVM1aJfOg4D185V3t27nVayjriA9v0pd6anX8s6LG6ruIqi0GygVvE9afqLiHZZHKnGo_nJL78IsnW7eLDq1HZ49pPF7kzMIBKNgMir14T.5gOeaHvbNlHseD3rs4SwAF61PBx_G0n_DNGqsDNrcHQEmU0SlpTgyagIGbNwplVR.8rvfUwSgzAnx1aUaNDTrY3eJxFWgo_E5NdfYHmqiGFLxmJvfJ330GSpSEKUxesUOSkU2SXfvoLYZlMUhVLL40BXiMX7on.GlEuKN3y_DHxW6mryB8q8eSY7gQsRY5DpGvaNqShR0NVZsKT3nuqfWegEZwhW0IGLVXxQzKX_OP_8F6xrJyAvjLdwgfmwSTXwX8vZcHiDyuz8UYOrE9Ir99U.uZ5KlCfjSTLdpRb6p5.WB8Mt1UwT08IOfTfKfu0y2bTSyNZ2vo.1N_GcQBZ5KFJNqNJpPBttsk0YnizoJjeorI0JgoGKxp9a.67xY0nybJj9niniS9wnZLy1cAHKOkm2vKJeCPG3JJ4LjjkUrHpVyP3Me0nWTr29GSOqDBclz6sFcJP9YCaOaJwF87dNkg2pFqruMoV3B2qT9HQZr45kOqNteL9Fp1MHnCnNg.oPlTRilTckdr5rWdXwcHvNYtJbK_RSgga6hua_h4.o0cPnBSTFSCpWBAYc48l4JsfJzzyQT1efNkfacf4xmOuxuSjPGdWCfxCW2OrHA8x5OnJ88rX8AOTmAQKwyaVHbqSM8VFkkEJn0mKEZfWWdyo.22JCEH3IetQzevLEA5x.FadESeKA3.I9XK7VLPN_PAAFfrP4g5Gn105ZmUosLyovwT83AzBGSdkp.1HZLR0Y_MPghsndQhD1PCFtS3wi6D81p0IIEYTbtVeO7BWF08znvqJsYnS4IFdiWRQ7CknCLYW5Gc8uLkY0kzujoz6YmLjwEHoJ_etJafHHKf4dIMnp0AQ9A7UQzy3MyMkwwtjg8PXRgP3muc1HpLF0oLEouzc.NEzMhnk2rDk68.jrAS9d2GoC6qidjqt9r.25oj44sIAciQFrmYxs8gMJ0Kp0E589tpdMegfgEENBNpS4EpxB4ZzSkTnLpcu.aeut8tEgt7zicR3DPTqIdFMud.zgi2ObZlScSAH7KjaxtV0NIPgBIv48OGUyLkDCMP.LZHZcJBDQdrWz6dDyGue4Z5698QaVMgoJYNIm0rGHEShjgwGJb2xClVR82tN3E0Jdjc3gqoDwEfGnDWzT0mBx_pVuasVOgSv8pzO9CEc3bIMjuPTJfCNxMvwSYKneqQzhFpoFqUwzlDjjoGwZ01d8vZ1U.nkNLCqjiVhu9L0mOLBqemZZELW_NsY3P4jxIVFTCTSNLSFsjKIwZVG1VEMO1TVANFyarxcM6Fps2vQjIArrkUVvzPvA_tTGdfcPah_8Yq5qrYnIqj",mdrd: "MSKNSLgpqUDXCjeZfx3iz31OUmtPv.KZ9ztp37JY_rg-1739090386-1.2.1.1-I12s7WZXXH0c4ATdaxkv2ujtkKGc0YXM4mN4qrIzevEh0WKVj6_bCaLKZHWSje7P4ClNfucr_lKag2DSfGvDMt7zGZs805UTrrs4LRXpPs_1xp5UJ4nfsNd5AGdE.wACOcATiD_HdJ1Zh0COuXvpoaiAJyNs7VeJrOgj3I_oki56fROI_OZkEJ7gCYOFy0rBCZJYX.ivWpOW_En8WmuD0WeNdbtfYnMVRH9BgApiZk7DajRr5Om3fVRnoiU8SZQYoVjARhX5KD0seuzxhfmsCL_g0GGlsoKtH7ndlPxAGk8LFf76Z2mYaYXehIYMDpU0KVzksKk83k0Yo9nU4e05PxgvRGRWRGJPAnFphYrXk3UMRESOMIQ0M4er_Vo0PE5VcfRciIP354e5igGoeuqLUOvqqB8n918MuS8gTg5FRzr1zbp_5tUqPmkgcVqcwcAg66lrFKcevywdmfOGcQ2Q1lZvCQ.ADekcNaZgxeedwnJ5ywYMjv8.ghaA5kf5XzXSiLp4nKtdgqcjsv_BcKiqT5sNpuF0Alsc6h5y297BpqhW0T0CO47z4YKYS3iPpvaVKgKfQlALul3Ydb8V1fxc2oJf9Yj4BHiT8DHtbhCtnjlKQ3O2Tx.425wWGePx4CEsq4.Pg8IL1dGlYsTNXcMZPNQ_7oOuewfBQiT_vzHQTtOPN79G05rdEoQvZ1iffNTPpMq87NuLluDXcd7YXoVabz8nMugEHqbILrBmLu5htcKCavEt6SbChqlkSVi1Vd.L7uohZ8Rp5IaKNRYA.dLGQKfh2kz4WbdTNzJe9Tz3CMgwsm_rxLheFOvK2bz8Z6F.g3vgE31gUbvxGOn8qCbhA3sMU9xDCgQYOZ2ocuCC_mgFFhrc7LilWj2EMvmGuCogk0n7JpqFu7XP8f0y6mh1Owq4qFDKZ11qKQk9ZGXLvOcLQhrg2sG0yZK5eyAGufg0kVGYkwaiwavGW3BKqRadCuXMRvz9wQznniun4AYFgzoGih4U1XF40jHhWytjLTjsQZKf9xfEBrmhVQLk5KAR5MX2lZz3s6OeCRcxrSgftbPPHQiX55fxpT1EqXFwR9jDLOlrmVyBYt1GlUnvo32CL1Esp4ChoBcqPoyAJUUsOv9yW5tockmdPAuT6xrqHb.Ql6L19w8RyO81CeSMxvqXJSXBd6DVREmd928f4jAz5kBowYRx5z1xJbowoiHBOvk2zW524f6Rt61hvp2v9HsOwIY4SBtdRE46.76S0jgwcNbYN_JTclOVbyWl.LaJOlTLepm7IbXqhg0Ezq8p3cQRu8nTybfgYUFTrPB5tvKzMvZUiUD0vShG5xmwpWioUZSbpXMjOhpTzjHp4j3NUaTiecjBpGkXqrkO0phrdshRJgICGyo98MkqfE8XrZqHEirXiGtCC5zDwJt2.DvpUVIcxZQ7cT8ui3vLdcdksvDFdzQv.goEo_YcnXkL2KTYjRX43D7WqCExmY_zp2mSGe0kBWacljSmUoZ3yfe02.yEwRWJ2yI57wfbUdGKuYK4UN6SmhBWof9ofMWv29wZDSLyS813BmSlsQTQnBJW88Hp_lZKPDVeIGH58cg8hUuSDap6laQ.XR8A0PJAL1Gumb5JG2KPjJ_wO1thyyXXL04GQi5qJPqwX.A.TZYOZRIgP8V4xcWJze6WligHajjMBiFHPPrS_uvn7WdbQSrEJpDELbdxXD1VhPMBnGDMdR6M6WOd5xlR7wUsCfgAstk_AT_zCtk_VAgq7YRplJGsOg30o7ntFxgvz_dqa9qtJIX.yJJjWkeoHHL8DcZQ.o4VIYmAUA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f28d05bfeb0829';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\/1957682430?__cf_chl_rt_tk=R8UBYml3RPcjUBBSzP1F.yRqfg8bD7y1K0CIUpQItKw-1739090386-1.0.1.1-UIeSGXtCu_fWgz304Pn3_trOIg8sPS9h53RvDsZQNjk" + 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