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-afffcx33t.mit-edu.top/post/2410739865

  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-afffcx33t.mit-edu.top",cType: 'managed',cRay: '94b84de41f1141e3',cH: '3cP9V.eMIgsPAo50gWwoNnBh41ZbHhbRimpT7UOd67k-1749217045-1.2.1.1-zyygQ9zL7YIjDtjhpB17dYVZK1N9UHbhSI2KcfyAYGRAWzGsM2bWY8xIHao1VYLL',cUPMDTk: "\/post\/2410739865?__cf_chl_tk=aWo81QL64B6.wbUVGzGQz.kukxR..GSO_UKHVhQQx.U-1749217045-1.0.1.1-eH3NCQNn5OWJuZqqlsULd.2F8HtHmWkTZ7F8rcSTlas",cFPWv: 'g',cITimeS: '1749217045',cTplC: 0,cTplV: 5,cTplB: 'cf',fa: "\/post\/2410739865?__cf_chl_f_tk=aWo81QL64B6.wbUVGzGQz.kukxR..GSO_UKHVhQQx.U-1749217045-1.0.1.1-eH3NCQNn5OWJuZqqlsULd.2F8HtHmWkTZ7F8rcSTlas",md: "NehEFdYcfKPK62inFneccKBtyU_wktz2m2Irfui3LI8-1749217045-1.2.1.1-JpGNeIQ0PpI_mxQ814YKg1RLNrR_j9jOZ.d_2tUCbcRe2vVbqdn4M3aOnEBiDqIEs0XWgfqo3KT8r_MFZi33PSCoiLRr0ni3aPGUauaDcm8oSGqvtgSJnLhGbj.F79eNFrhFuHaWFZCWmwL5_bwhFKCjtLjS4TgnpG1dCADW2h0dnjeRSzZcvliBCkiFQdZx96To6kNSkfDrkeCNnH_HfjQ5_dG8wnuZQ_127A5Y9zymffXIDKAK2GjwddoHPeDyvdcusovmRcK79Nv7_bUTsvT99dZGD2NviwpXohZ.hyA_plUHyZYXQBoO2aO3lg4RHqluOb9Q7bMrE5BrOiZ5WgpGbpZnOSCgDDPshKiG.G10z8Zvlg3JYfXYZQAbht2ahK2MzIBtCWsrBWyIvVQSvRflWmH9JufPp8IKIIVEJkVWWPdTRvEFRs.7XGhsc9wazUU2OD_E9nJxxlyRSvRgwDds1akUZOL33daycIwf0gn1jQEZeMSa58d_zTDvmc4Ytae.MNLNwHCntF.XFPmlVyMAAmR_.UU98FWNJGcws1c73_XN7kM9OKtgQ5g_dQNwCou9itWLobn2ZxEQnS3a95SPgEQgP14UlfVbfjmdcaR8Qg.bs0YCkgQ9rVrXIsl_Sgwo.qL54WyGB.LfCm6x9AQGY12Xytod24BJQw9uBkVrRV6icigWrrQucCbKx3fNLZeboXCVfdBJrM8dVGM9IaqkdXB7OdFEhabcVjQLVaCc9zUQnhioC3x_g9.xlmYtwECHbv1xrk7T14Fnb88GS8vlH05x1j6NNkbs3f8TpBrkGgcY4Qsxv332zeRlRJHb",mdrd: "BsLNSjr3nYT_2kPPhMhEdGL5CDSJzFRNRBeQb1vy9Vg-1749217045-1.2.1.1-TK8vJH9sFuQTkv61bUnqGe1AnVAJ4oaFvU08OSVHa3_4OCHZgCO2P54aSPUBM1x7Zft0_qsKLLizmeWPzhuI1_a3NUwBFAsbjdjS87c5Rf2ZC9nsWze0cHJqM9Vp4hR.SJ3O6EUqtHCoFu1C.UDIP7wU57N.tNHC4u6qFpAelm731irgw4VC5t1nt345rVCr3ibFkMjgvkOI0S9356lLq3I5xhf.cXs7BfTwMapzicdhIWysoj0u6LVh57btPPWsul2DvU6lyvcgBjSWoOke14KKQA3Q30UhD2ak6lUkVKtcEvvUa1IXFhjNzhrjMHxvzgPo2CVIO0_1ASx_2KlPi288USpRj.x.7yU.5UODxE.bfboLdtvp.P0ieOD1kC0GCLkpaBNyWh3WxeToG3IDNgcl_QGfv_5un0FHwuxphvodLZbqVW0fhBg4o_QZqatBAjYQYHl8JG_BdquqK.Gw6aRPo2F8oM0KcgvVWIksgORsMBo.kC3x2._SX20X2KaPNg7cJg8MBm4Yzngz7RzPd7ZLxCPDJ0HmvubUS2TxwAwellYJzz0E5gVvJ9K.Q60TQ20Z578RAg_6ZTtFj8KgZY3WJyx3FmkhzZquZLigydC4Qm2FYCDpAts1nBocAzL1I8QNtrdXTv9E0zn2Dn3gnu64WRroEMAJCAIeySb_49Cs2vSau8ESdp_dosIQcPgBzqATbkb_cI.T.9Ky4ykE6j2TwQP46J.bEQNdJm_MI_9A3lw2zI9fdwf4IkP4eBPVZjBJopyP3sMHeFMyMn6o8.cFYZMa..zZgyRorC8JcaebcXlMfkIJpVYAS8AoiZP5JQtz3fQ2d6LpJQ4mcTqFGN8zyZa.k0cd8jlKzvoE7eH9JrrVXlhT.6KWQnYuJH7_F5HgBITwnv55ois4F5ws5qBSPakvqBAPw_wMF09x7PlFL5R1RKYbGjj8VQLNoBsBJm0sCPNqaGX9tKCdiJb7mCeR7UcrCT5otJppUpYlq.kUZz4IfSocIG_IgvkqG7MUbc2Jx0ctq090N6SMW4s5n2mXGJhYOnvhgeWhDlW6FPe4jGqgh8DQCJ2jJK3xIzYrHhOBcn_s8I.O4Hkw6tzqYwUtbe8NM10dgZQTRC3EMq3FqMzsvKSg7VXMuO8ulqgKz63RZdGmq.LLZnBoYBWj7MNi2ZFWNiHxff3l7KL7mM8RbNOXA6ASC4vn5CriPC2BbN4I23oVtzdygF.TDdCh76WLeXVbLbuySAGu6CdjUO7aaBcyuTEDn_0r_TsAEuNs6__pCsWpyahmBMOFrvx.USraatZLmKWHn.NiwM6iQfODpDGSU2wYJDIcVgnxMzezUB4cqDe_oj4tFPchnVy_c.Tk.HbDHrcGDBR5RB39LG5TAI3QyEzp8teKXB3FRXA2VBqaoln2t0KUKv4zyfYpYtHwmlXqDLUf6622Ceu6qYarjqDCSL.w0RWv7Hg7X6nvTykb_KHDsgR.suIun0iLwtJzsxzjegSzIVU2JNH.sb22r7apQx2yFH6V9qGbSZ2BG8SIWQ8VfbNh1OuNF7Dn5xb5RiW.otcPFH4Lfpks41NWfPxx68eoarz5r.2b1ApMz90FCNrfACxHwo9fg_vbl2KMCbFvz8eL2qwZtgpdsDdXdcbVnl5NLZZ_Ak3YyDgqoJ4kgp8ATkzsjDhReSWow6CREg3B1KO5nIYnqAq6ROgvstoAdomwK.E92JPpH76mM9.HFl27HdlPQeKs8bigACc5M7uw1uAJt3wr2QYpOCoPOcIhYD8vtJNsz3GiqnKPPeeHU.lTm7M65x35eh6VY36SuC_9uKMIuGsRJP2AD..KwVtOQntpF6O5CrHB4EN_7HC7YqKlcapsRQpGuj8ncw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=94b84de41f1141e3';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\/2410739865?__cf_chl_rt_tk=aWo81QL64B6.wbUVGzGQz.kukxR..GSO_UKHVhQQx.U-1749217045-1.0.1.1-eH3NCQNn5OWJuZqqlsULd.2F8HtHmWkTZ7F8rcSTlas" + 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