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-affv8dhqq.mit-edu.top/post/1267459038

  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-affv8dhqq.mit-edu.top",cType: 'managed',cRay: '90f6adbbad712060',cH: 'qfBKWFYLDld56Ra_KAOPaeVUoUs6XYv7Mlxlp3G8kc0-1739133669-1.2.1.1-ufrdLNeqA8muDXoTb0Ri.8HlfgpxCXq9brFtcQkoAImneAQ9d7EI2GGZGs6MDg60',cUPMDTk: "\/post\/1267459038?__cf_chl_tk=hsGfCeqExR7YX03ux6MZPx7ztPcUQyyCfT8sUAcYees-1739133669-1.0.1.1-LmdWVAOgcnCAMtEwDaNEOWwhxhcRDQBN4Tc0m8tX5cM",cFPWv: 'g',cITimeS: '1739133669',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1267459038?__cf_chl_f_tk=hsGfCeqExR7YX03ux6MZPx7ztPcUQyyCfT8sUAcYees-1739133669-1.0.1.1-LmdWVAOgcnCAMtEwDaNEOWwhxhcRDQBN4Tc0m8tX5cM",md: "GgT7idSO53Y7zQ6fMnY6NeisX92s7FD_MyrqkfG11bo-1739133669-1.2.1.1-ac4OwW9Cxlu.PUViGS94Swa1e8OW8xPGR_MvWeLXHxITbatFnvH5oaxIMzJKMCv6oVAb5.AhxrBRP5H4faWvfGKm2XLMMK0h.BwvgJU8JEKsA6mWXCHa038voheRATw6znb4FijJlSVujjrwLm_H2i81MTIsdO3KU.k.NCYwkXh7jS7Gac1PfZ2U6HC34XRMsVZC0vg_XrKUTEMs8tdIEOM7dXR64CFUXA2Pd2LOAF99i3SfUZHsYwQCWYc7vuEEX2lttSinPiHOX2ENA12JpKoxP9mi2aDi29G58TGkdp4tshoix_Zh6B8D9RyshURugK3VhnxhZm19SaEVuz8TlJCkBEkoW_zEKhjdLyraFSSD5LCn_omPqQG29cQJznnvpJ5W0sl3K7i2nlBnRA3I_UQ6DkmD_VWaOFRDbBS2JUKvAI.In5_p9Q0EjpB_S3SDwSMMAAP7d2.vg1gxEuR1vvJJxkrlLv3WLIlRvxthphDHTZAHNnSPiqy7b_qKAEBCUcsYfIOy4PrmcqA6BTKCGi4.XlmtUMdLDXQzJ3DBRuR2xckoMsaKLIlCf1O3dkOx2qfV4Oezs5EIX8PwtsagApdVhm9ue0cuut7dkXdg4pnQEkkwoajQDx_DT1gYYS3FrdcbuXROsNm3RjgWdJLQdnsah74rXiIGsItjUdpn0Yk4JKzbJ6XBHEoF0RRO73kbBb7HtkdC2eCbk6OEBZ3M7e6ywal2Q1lmZgfrA4uqdOLI6Vk39j34MMvWJt6819foEsHKeoxfhuIpRxZGotvRKJR8_QVtZS70F0MODsbHNwHsgUVeyHM5DK3is6MDoohgPTCTlPULoedE.gFhEgV2rX_pRL5KgvuWg.xfjT4uYmfD5RAb93btcBjco2XnCIzxbveX9jRMiu_e2ku.LW8dN8wYTboNz4Je83Ky_QWOBQ0dEX.E.0YT7DgGq0meWeoAF2KezvmwObUNjZTrqEtwWPQYoXU2tS9fDo3Pj4z5mF6w0uWstE23nceJG7Zxk8L_UyiuKHJosjhTY5slMHG_.IVelLHQj3SAhgG4wJijpJ_rgeG6L1L.E6Pa4B3YGhXIayf5qCmXD3W0Mn4n.6ZE8WIxhqgN4xnGJoNaK5513nXh30h9GOe3WdwnxOCdeTUr9jyvs6eQLKgG2LI3pAhf.TcBU.Nw2IiyXcb8aJnoPIutWlyiAxm8j47uQdmJ2mp5N3XYT_s89TS4NHGDIJtFjJUU5OaGjrKc6uzLT.A2Ss9a7UvDmEnEBkb6sEHOkLvajoRsFsCWl0CFL9gaQANIHEM8Rj0xhyb6DIu69ZqhJcxnHiAnsa8Zj5zkEPJffgWiP5A8JmBLAMCKwdOYdcnP.4.yTCYC34T5d3yVFNMVTFFmt0_iddgk027CeEkQ5FnDLB9HnUtnra0xxCVHoXO_hG94quPAgAhJlVIzLn2tXEKStqKKOALgYRcC7W90p6t5UwlvkFGWLqb_az0DZxkLsYgbXjBr2MCnCu3yjywNuPanYdf.VH2.04uyFeSC7MNdAMq1I81SCPvikRXn1mNPyu6cawG5SOfwvi4CyEmhau_eZrFhr7F0Qh9q6LMIYrZ_126YkwFf5QULDqIL4xS6SxKemty1LNLJ8eMBT0bHTxZwALSaR3b05CszTp2Dwiax.u6_BsChNlqGltqrU9SPE4bRRzJ5XDLnP_qkK.vdREIfcsiVj4OIyMSkohUHZpZH9SYtmEAFPVuH3KbWU09i6D1NlDpzJ50rqgyiXSdfJKdsW4vtn8FBeZH2.h54zSAdsLFbhy42B0OJuVy492aFwe6eycst9K3zybHR8wmPB1P1f.t_K5ne4gSc7cqHXhRMhGvVIH1RHa.B4njFzP4WdzP7JO0oj_p6VqxfST27Nm4OkIz7RGz7asHzS6eRapmV9kD3vLkNUuiLY.sgMJsim_c.T1sQQovo4UrsxS61il6fEqD3EZUupIwFXEJygWL6RYZZdNupm267kWE0bw7mL8hDlc_fVAV7v0Bc04naD2PcCaAjeSLHncm2ptjryxNt44.4cwc0nZwnoIMDSdSPoHJXXimJsh3pDPhQRYzWCys7cYZ30ej8pFe3bRGYXQxzCUk4nzcSjGASiOU1VafEJmcjEkHAoJwXu7czv7JrYVEuFmW5LGOXu3NtfTySI_2ejSSQ0Li_QsO4ovjfYenaIBIDqHrcg1krSK_IvbH_C9xNovHd.4eb7V1bB6bq7_4_",mdrd: "6evjawKtIwqBE0kh626N2r2w4l0VZHyIxEWFkGdYPhI-1739133669-1.2.1.1-3H.4k2lq48G4.EoB4ECLR683Mav2nefcsDr6JIRWtW0tckD8Il88U2fqLj2zn4m446HAVsIG4OmnyVP_pWKt1F4nQcUiDWQJCMYAsMxkkDSq2o1RQcFYaurA4vFrzSswKP88DEAt3ypEmIvkOh_Qi9uAZTcFQWqN1_zMj794tBpKa3tHYTkBOhtYsE02ATgfgVACIjSlQp0ICnhL4FLhxuMflALNiypTy4tEwhM0ugQ4KGrWJXKV3.3yvlBkdZFfF4WzgVySq7bhbxTXnrNF4t1Vod_Jicqevb0dYM0ufH0in5HGqCSqM3OGyFqfSKMr_AJVLqJR1Isi443kvlOBbDmZqV92T74d2NlpL0wQkfJMaVfHBuzAjejZEkAHoEfiWHiRu813HxrWRJMz5J01g1S1EG_KK.Gv94QA30gt5op7HpIWBeJKKAoar3ZIYnY_CZXdv6WVdceaB84zmRF5fefWALYUMvATOnXe4WnZRviYSrOVsGCNDgcNAyGOHbxxn6E1sNR6T.4pX85qHaP33WbyJslhixGzb1hOFa.S9f_7iLd2sf7nemejGX66dEN3HWIYfeT5fYmQQijjIbizb0ChuB1CSqXG2KOVK4jkW1SYdeyMLH17SC8HnPXKAXLF_W.tiT2Eyw16K2wMmHDcV8_JmfmjKXu8_l46OLHkW8lo4L2Ex2DnLSnBBMRqZLLhpB_AWZSGsf_OGUsDb1mnh2E6H1B1ROAsRc8GPeyvxPirgRuDjmMlo5xis08_nRTfRRsXRlyFr0kHqyEyDN3rwQF5a7xy7VqZ0rHWbl7vGuX12pBPhS9Ar50Tf0xDi8eLvDGqOyQICNznfsxeLzTdW8slLQ.yU247sSHBgw0dtWzJK7xx7NUwHKFYqvJl.cTk4Fr5DQwTsPIB6ndPf2XYSzYIn_SpBvP6UyT8YXkoOtZI40iBRsFcjsrEzXXnSvXCrw59onu4vVCrXrvvyLa0oKZqnhq3IYzxTtQedSvPUctjaD9t_3mnuYanm4pcuaKnvBIP8RJfKT55dh9E3xmE_CUivdziSlFgCtYvLw28wVpqbnVYWBq7tbb8es3w1i1cYHjQKDLxQghJFE4fBYQqV1dr2QUYPTiMGYQS69j5ra0dzUAmi10.lB9WsT8UY59Y5Dw6WRwnCXv6hUwhUlKpO3czttgfaqGA9P3rHANz292zx5kxOU1Yye5LQiOQkm.0.MY1Il7Tv.jAD9LNAV_6Fa60LK1qxs_uWqZEUlvZ2Skv4IQ1DPMeNyZujCuzJZcu7o0UZFj8n4YeAzBmpKtHVSqdoRoDJG9RpSqvC8ajXWMPr23BSZ0WZs7xeugU7OmKoZK2wXGxk.lqnb45zK6iOSRFb3ZLQ0w1He_xqzucWwnXI2HeuAN_KUe2qx6ThVHaxuKWDOTLQMGFH9GB54XjJXMKfu.v2E.bUG2oNVxObWMioDXrE3SbhlYJF_G3uoWoOh1lfRovDNgQCtO4eB6UHwaYjQDq4dkOZAP3Ri2zjes8k5r3i33Wd5Lv5kxfNFOSAE_pyPtxgzzOmV_B9Kd9gwdpByJbxgGQxRZCa8VJfspKFMdZ7OKMmKKCtGoTVD4ZCp6zRQLNNWhfL1BjuM045np.WU2mzJAumWGxxtKdYWYjiKu35GWDovtmoM0kktumgTGfRA80JeG11SyhS.2bT3DB5HReK0JGjVWRb7LY.swPvh1K.Px9nId9k.7wM5b18ox0DPfZUKjfcK6A7RBqSSJRepuYtRfdWMOQySl5Ffy_.MdyjWDBdzCqA1O4EjNTMETusNyMtS4JYtP1MnLtth_QRNdKpB9ZpXAUwEMx0cA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f6adbbad712060';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\/1267459038?__cf_chl_rt_tk=hsGfCeqExR7YX03ux6MZPx7ztPcUQyyCfT8sUAcYees-1739133669-1.0.1.1-LmdWVAOgcnCAMtEwDaNEOWwhxhcRDQBN4Tc0m8tX5cM" + 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