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-affy1z5i2.mit-edu.top/post/2561790384

  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-affy1z5i2.mit-edu.top",cType: 'managed',cRay: '90f7cadedac99c6d',cH: 'M3UqmdgV6YT9C03bUDv7EsSFL9_6WdHY_x88ABAy3z4-1739145348-1.2.1.1-_pWSNLEwY489k3MGAAUQNuYonAEjlq2y78XHpfpV4tgyIjurQKZJy1_n.5L2wWWC',cUPMDTk: "\/post\/2561790384?__cf_chl_tk=9qc3qf0bPbcoAc5FIR.a_hLSk2Mks2Cfz9xbdlrcCBk-1739145348-1.0.1.1-9bb6Vikmu0ODJnqTWum3zaeeHlU5zRpYON4OsjCaa1I",cFPWv: 'g',cITimeS: '1739145348',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/2561790384?__cf_chl_f_tk=9qc3qf0bPbcoAc5FIR.a_hLSk2Mks2Cfz9xbdlrcCBk-1739145348-1.0.1.1-9bb6Vikmu0ODJnqTWum3zaeeHlU5zRpYON4OsjCaa1I",md: "f2fHOYOdBUnTC97V4hpShx9yFM1kQfjjm1MnGr245WY-1739145348-1.2.1.1-va9TusH26Tcu9QZS0C5XKjwF9mWQrv1bsuBvn45yLP5GIv8bwe71Z.S365u_oNyGW224YDyOeBKkSVNA_OTbpagXqaFO8elSoNR_InElD0IqYUy7vKlbFCE5fzJ.NBhA64rGWlf7pBB7GkyPoGDYHP_hcvEwvjfiPf.Yo8RMbEvU0sBLcUy.7y0ys21.aXp7gPwYa1p16XOkoWfLajo4NSXFAkBL5XnpBUdFQNm80_yOXHJlzDUWc5mYv0JxE3WbTOeroRLzLrRlTljo1Q18tVPApjKkY1g2r.qRQ8.UYtygDbUkFCqxIcakiDssKAeirYBlbaF_bSTG2qJP3pYtmZan.2tq73bQVP8kStoEIx9POJY0usQfURv.aJATNotwyF0_ZdEfNj8J38t5oYbmPTbdGnQ.Ql.23K1cv7ACw_IH.lWKksfVVXF.VhzMk5BJX4nlmYdOrcbsIPspHgQQ_Pa85lJTeCAuF6WimgH9FxPIQpIbdUf3f5LxZwALXkbSPJOVEfCy5g6yic7inAglC.BGbBRfDyFsaeZMWqkXp7.HRQQyo.RmIqmj005mBm9efYZ3y_WN0UUYm8Fv4Kf5W.vOmN0V4VNgNJa5lzO52zQnox5609Hm2J6fGmTBen9Z_jgHvzp0bKGTYWDKNvRb_HHX1sgL2OtDcRRPkg9BfocodzyUhScE0wnyy_LVhyccfbF0y2SVFsJfFYTU8jR_QRnPr_VyfUm_O0kzQyO0Uhq7IhyflxoVyxvZ8xnJefHuUXO0c8alJMhQpwe76V4YnlgqzJ3urL05LSeGrvryiQzlnAtRTDCY4v2YNHTaTPSiQVD8gBC6nHu1WG_h86ljr75RP2B4s7dpjKwzPukhiMLZNxTcOFT8kRPS4cqVoVsNSOoyUSy1eH5LlZKJK0RToWb2u770H0BGXlFZ61ayK01mCpdwyXsGC5iw5Oehw5M9yxf2vl5HaxaqxaITuqNl4LJcWWPXCUHO.UXcxSfKltNxr3hXrIMS6ie9LXMgkccQ1.nmYl9tPt6VlTLacKCnynEUCH4wgkNx2JGVwCpCdWMWf9lJkiXzJcr.bUhO2O_6eZNl67jG.3D493EONtHSCraWu6Z9T_JNcO2OPviD0y0LwT8iFjkCa7H0Oe2BkB2ilfGWpKndl2v.xcNTDqrIUN307sIa.9urn0tWOSKbtgG6TJeghmMoQTbYukL8NeVH3z0ftA4Pb1QzMY5uCNaiglt.xZdWOIg8Ifhfs6Z4jq5lx2XRepIz5rFgoJzXfpl06x6sSWFYcg9b.j4DQbCCgWOLlex4U06_bxCcngQiZnhAfR6JijbrTSPbQHzgqr_fBZBjfqMn_H0xG4nxXQ.ZfW1BMal1DirAheD9Rz8ImIGpF4pZn074CdbRKCyl5W4Kuo0tXi04cLjZohLNQevDsmLbXm5TK_2EYzwXB9oEx5vANJZwyWuyJD3tUM_ZIvddt55C0oJNSwkY29geVievQ6BAhCVBXecaLsKqryxHtqFRccXX5U8ExGNDUmFmFDlEeAGbl34v9bJFpP2gQymHIu4458wfDDO2iE0mqsMka3ibnTv_AssubxiMSA79VNZTNJr2wDQlttGi3L0qsF5s0P7RI7CXKv6UtcrfEUNEwQqlSoXzIP2Y4a7u5AJHl.759xIRSD4gE0nqThktnQ.NWJL0MrdY9QZcHxfRfes0D69k1jVhT3uE23xFvprUAwyOk3Czawqc9U4OZavK.sbqMpjaoSsdMeJqxwdRRHhIx8EhUrmSQk9_R_wnSbBJXY6BSgUjrwEUMI8rKEm1L34RQfcFRHnRUHQgm.GrSIfxCQ1wAjB_illP92C8vLXa4HkK5pc8lAiLZGMc783MMFuFH2SGdB0NXdNBVavOXkMVVlygldakRO1odufy80TWGPFq1WgqhyC1.EyOIvng1SYUl8TLmyBiAnix8nYIRLMyqygd_wFUrmNjQKAtjKW_iCxD65zKxAqGFL8vhCvNz7I0iJBz.JZRuKlh.52SiB6pKKQrJqF.czul2llAMOmr_6rSIm.f5Nz0JsRNN.DyjPZHxgEtmwFyO7clUuQhUnFMHbfJwpbvW24A35ITIAUpVmdN6frnx2H7n7GyVfW.rVqNBw29k9e2IhNMiPrLVHnBbaV7JC7REy9ymUj_p5BzPP5dw.NRDgDoy1A.pWelfk.HinA_b.SZdnQHzbAW9jWYiLFYIVMoTDgV29s91bvgb4aP",mdrd: "A_ri878hffQjdd1dfk52J6nlH3ggG3VKfnHjCUhg.1w-1739145348-1.2.1.1-6cvOWZDanmDmtjsfM8QRmTn9V3MV3iU6.OUO7dCTgCiolHMut7niPIj9AvbgmFu7F4eUMgAlKwSrq2rDMQZGDs4uxSw7enSxNbZeqsRqFlSbiNIZVNQ5VmFWsgKR88B8mwn.ZwmkM9Xq1jdnpkgRcTiDUeEyle7SiwNSqzWA9QGrqahEQCDXeQ_l3yJWAxYXGoP9xMkj3KR9qJ30C2b6bawAmHbieyMfLeJ6rMgDsDpgQnO7wYJx7YyUt4hD61.pYG4SMD3LdTF3k9NZf0w_8IjKcc2JRC9MRHzsVgPJxzxQmHRABk_GUQQMbwBRKwCWZ5sXevv8wyfl5GVYbjya74sL0HHTP8G1n67PYNksLHAcJMTxuTt08K4ohJemKCitNLvnirEOXKPLoCIQcB7be7Oo.vYLbpJvfdsHndxYSQ_ppiccgTVDPqDyyyMuLxZnjSR_Z0L22bPaQKjxv6BdbS6I5bsUgGarwGV.4TgsM7PYL1PgXNrztqv33H0uIKsKlln9h0Dp8ZztiOwAB9EA.Xr5wSyHfpcK8_uQlKpE478ZkaHsdz5z71GTZ5O.rf6DfpL9kX2RhPLolBk4eQlebnrWvz1WLzfcUHvI8gvCLTsCPCyjMy4RyFcCNhN26BEK3LrMrY5uT9gaJobfeAvKvM1uVeOWgH83DBD_FvCBQRsFK2eoM3L0YQr69hiZqcN4nWA2mfULNkM8r1XxQR6w6Qdc9pN5OMZiDvcmW_31_w65wOhLX0s8EIoqqiVvXSIx7FqcWzRGBvWRwVBwgy0DJFWcxHLDcm4DJv_r.vyirB2vbfRDq8Vp2solt62QGC7Of_z_hr9qpnQB_063eLRyf83jiHPWNasWX5r5q_IlJEdiULidCr7SDK9DXKaLPt6Ps7nRhz363anZnJFkt3yEI0spb6FBCnX7sqNWALc0s8gx9MHYgnZFq5BBt3hzumSrAwleCjeBK7N0PamF8qcMoEh_72SlEhg.vLnVgn2Wxna80474lZAmvWwDqT3V3hLNnkdAL8Zq.OtQurLQRFu8DR4v7tdvjAt4odvZ99ImcGI5dkh2AM2vK27o1_sS0JsHUBGCdoiBRn5KUCWIFasokieIrcZtlSzjPc5BnW6qlMcwTBSuyqB9CtiW1r7VFhUZVICUj2ulcw0RihhQe_l_UKQ_ILR8BI1UAGuXIqPjvqYeFj8Gwm1ohZA3YrnhQBTe6SI1EaC4IoKBvaVz..Kp8vw6JByk_v7rNKg2CD8i89_I9W_tri7pm_jr5RG6YUDx4CmezqRP7LRqA2NLvPrcUC58XUhmAvOgQb.Swg6MLZNewfT2reUNx9ziLq34SWKfOYFP6xa4ZHjDUuiyZG9lUkV61VrIIWrzmYQG43JStJy4X_IBO5ZXyT9rKG60N5heUvz.TejTWhwgz9f_CfGYNpOxBzf_CbglcAnhB6VSZWPmkjvpG6k83wHNpM_TNHIOEgQbOEexYn4dSigrFqyhhvsPFNIZ2EWB27u2qzRPsv2R.wIvzhH0Zx4LamtemH50DRmhL4d1GCjLP8hxz9kp7p0fukbn4ufXSEX1krA55DPQdu3YW8_GuNvHH.zd5q4bKBE76N0ZQpvHL3nBH9bC6jEXz6AGjObdKVCuLpqrNDdjHPuHIrlmw3ZvHDwCVfx_P0YGDHGhHlEYO1KbZjuNeFTLnuLm_OVDXRO8IBHbmspurPqMJR81EDRuSl_dw_ah.JgAjYBJVlGO92jOX1y2Gm5DAeb9PBexjBkFmZ9H6NzWLZSMtUVx3JWm6LBszFDZJRaS.wreJxdS3.5E5_rzPQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7cadedac99c6d';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\/2561790384?__cf_chl_rt_tk=9qc3qf0bPbcoAc5FIR.a_hLSk2Mks2Cfz9xbdlrcCBk-1739145348-1.0.1.1-9bb6Vikmu0ODJnqTWum3zaeeHlU5zRpYON4OsjCaa1I" + 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