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-aff5tgw9b.mit-edu.top/post/2195807643

  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-aff5tgw9b.mit-edu.top",cType: 'managed',cRay: '90f70dce2e27f274',cH: 'BxMuQEIARjDH.OpKtFEut8s0hXXJpeoMiuUxL4RtYa8-1739137604-1.2.1.1-x_KPI16L_zPswtFsIeaDjLlofbWXAkw12opfVa8xe4pA4NvipbAJeol3SRoNpmuZ',cUPMDTk: "\/post\/2195807643?__cf_chl_tk=nEMcp.Nj_q2XnxmbIxO03zKqV_fy2_eAU2i._iuzg7k-1739137604-1.0.1.1-y8TShq5gnoEWaZvDf3k5kfpYoBdKHGUyVk1De6MOwf8",cFPWv: 'g',cITimeS: '1739137604',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/2195807643?__cf_chl_f_tk=nEMcp.Nj_q2XnxmbIxO03zKqV_fy2_eAU2i._iuzg7k-1739137604-1.0.1.1-y8TShq5gnoEWaZvDf3k5kfpYoBdKHGUyVk1De6MOwf8",md: "BoIJ4Sw4Ie8vz60wCtKJ3bu_pKlrH6V0VF6axHdE6vs-1739137604-1.2.1.1-qTi5SECxWHGV2o4GdhAHQqTInX8fgzXglAK.FFlMiRi0XMCXnD1ijZHXdAkv4klJmUUZz1K9JcALTRGjY8tbj8FvBY61ep78r5XoaJgsVdQBWMekHsRH2QOiwtUGL88vLIjYvU6cqtx4N6EzLso.eM4brzT9gkEFsJFwmC8oKCz4JodS3o0GVguezY6jmeWtxZrojNaUuh_7MMVi1ZdI5KRBOX5XUp0NbbwB5ebquG9KDbjdLUz55RJPo7iSKDWxPX9ffr2Y1M0JwjgtgvaU.gz0MqekMO8r4db.AoEU7lEgrWDW1SL6MMR62QRSPj6i4wgKg8YeCKBri0PABwl16pomhac7yeXXk_pO4m6LuGF3bdI2Hwm3COMc2Y0Rwwdh6Km9UfAyI15OIqpvEt.vuHEkenHXsXhxMzj5JlUikNwOjZBTknovrFVdwT54oH5ZSZh46QNogj01JxgThd5M4qUIN3kmpifzjB663JXM3KJa4sVgJcCNR5SAklTBuA3ADafb43d4xubA31c40DMgJ9TNga79.9p0aiUSQtsoEuhZHDH4.5VkuoRaTSALy1ENsSrfCrMNpU0HdQMgOjRKPj5jshf2QzFCueLOgV161EtSx1chd_8XtkRRhUPo8pXDZqE1edgYhWW6aa7UtfkQ8y0pgiQQc..LTXXMHPux.06TVjJFOftOsyCE4X5.dIdCLixGp085IoiSSlcu6hIMwumLFJTEmIwfND2nIczF1xRzRyOolMwLKO9L2VF90vXu7SCGaCdc70knfRPt3EuzJW22aUr2Yfr5GYnOeX.V1ta0.fk0bdH5FyDTZqQH2UO4LeQLRHcRC5_Ob.2j07hBTRCP4yX7SK5RpJ.J4uIkDNifyPxeNoCl4ywBgdoDnv9hjkfsD9k9obj3f9yOxhrBeO0l0ZsUkszPq3fuMq73YtKC6Rk4X_9ju.2840NnhCttjA.KdzDw0hZLVQCEvA0w4zu58vVuzgv_Zo62wxGXuFsCeoFHx0L8YX3N75iWIoIryih6O0lTSP3vJuowwnHqlm7wi3D6tHo0BTodA2g.5mPE7p6HL3qnPRZkq.8zyyBQ02qNYLbO6cuqp79jJMjGEdf2D62k_jg_VxrbgnqmqRS3VDezfE1K9Lh0t2993DXJVhJzXewS_Hi1tNnU3J8bkN0QEpkyLXqyywDOJ.KNCBjWSwKJ8.gEqsixDKLRWfKOtD.XC4sdh.F2DUWmtFFu3LdciPfF5Fjcwf6X9N9LPgA_.HyJWXlqQgCawiBs6jo4K1xGGtuQa1n1yb8SF..605ETM_ad4kZf47YnchA9jkvS2QPwKveNyHE87GQHsjHf.SMdMP5e1jXF3Y56Sr8qHYika0tWDcETVZ1vpXnWIwhvZNHekHkUAT5egSfPSF7RBWsy2Cls7dJX45WmANh1GlkTMlljQlGK4v366NLbE47.IflHn8Hed6PkbctD6hKCs8K8widKmlhlY5ZOHo.bhvcTF5ioDiOWh9poc7PYROsNI_ubjRnQ54ZeMvZsblGog7H_Km8W0y19gc0nO4L.N3klGrhS4qJDZvNTJKDT.aTUfXwW7EAhPQ_BVULTS8q19dYdqOrVI8e_cuMCK7wmfpeZDPbyWMwvghjJotqgRTUFPztbRumP5zqr1I71ccdcmUEN4M.wUAZuOM4V9yCLs30HTKKkjn_gSJrN.24eudi_BnBptw1K1e3eC31142Ks8eMGktOARR_j_3NghsM9aiwHRm.2q6HX95.jJCiM.BaKWYXg.kHd6lQRaxuzD_AMSJ8q4zwHp06Y_0eDbV10LrRJZR0ovRhfYTNKWAoh8PDGsb0zLD9cnLao.z2tdyYzpnTXvioW5lTz9eu1m.BqfrYDapndcKRmkCaN5RgzJQHWzZ_sylEDlRpkx2_l8rsgYjAUdajEJqMPYgA51EqZdWfYT4zzb7zjU7Grz53Dtd3_FcVHkVgKSvGzp5XS827JneRtVPnfXte_mhJ2GoVTDmakZOwe9tPwoKGu_S2FxvC_yW6E6.lyvvAURYZz9qi0_vAQh7yd0L1SbOFxA5EAic7hpr7OyAYlkCUUOTyPSpHXJFqTTwBd2vWfiErdNgTRNBJP7ybKPtzxJoMeeOSYpgmgVrE0_9.wY_1qYgVY2UYFEWJevC2qkGmrDenwAAGp2Azz7k1UGG.Mnezh1larpwLdH6eY55eh7UL3GnVouWmqq7J72VUm19_FDTroAz.T",mdrd: "hKeWjp8BRI4Hak2Qpn6TThV7N2duMKU3cDCLL_Vk.vo-1739137604-1.2.1.1-miSQQuQOsh0aSsEIHoiszJ0XPsefuXGBqZYrQ7mKQR0YLGsowqPslhRzWPwim5Jv.FpTcDv4eeoWBcJwZNbSIT0vB4eG6gHoPCCSK.HZcKQ34gM4Y_rBztTjxl2GlfXQi5pN7Zt7jtfW7EVi.Brn1sVwDxIiUP67MHuj98yXHqqSVwPN.KOhEWF1dqur8arG550iX5G7SCvVTG4D12VXEtTkwNBj9G5fKR41R3oa5SrGnj.AQFE01lp9YGHSV042DkOsBjZR8d0eCavwgwUAVGu6E0txZO.PjVOxgH2DOPb.mKvCcECqzMXB05I_dF4uOCqKZ_e15wBBEIbwd6j7T2dE8Jkx0c2IYf5cDH7rhkQ1jN5bS9b5XzaFoiP7u3dXSyoFdMZ_xotWUVaUhKkN1n3Ukr6uK_VLbYlkhc06h6BESopC4xw8AC_tgBhwX6qkRRmLwe7SD9sK5P980QA_Jt0OrlbDsNq3jh.HE5pJPTpQPTn7usmM23f1xakq64q2fgTKVUmzGxS.c3PU5py5po13IwQZHuk2RwMW0qmYwxKX08m85WrRhdLbJ.pmY9wuFdEYUa8egY73tte.BLqbfVsuIx9PX64iNuAOcssnvDTzUZAnbVykfYnT8ki0m6Q1yrvVdijtnxza6rmc2NtFOrEDSypr3tCNUoeWEqAwQudNsf2HHjher5SGp4kCL1FYcQFKggHMuuGh_IYR2SoVcb27qYgurF6AMoeMofnTe_6144bEwqH32nDlZaelNL2ebAkz1fdTJjbX43cvDG8gV1wx57p.Cye4NB2M14SUuvxxY9KpgxaMeErr9JhSIt9sZiWvyjue8cc3N31ZrHb3A5pERXE9e93.TfjXg07FeoaSPkI_LX0QwkSWrb7wIIXv0RQ3bWwRfbGp7W_vz6VVQgG8sXAs1I8ZRyW3ZO6udSdAGS9oERgmsoKzlMUAGeXVMKBjrPJgjY3Zr7p5rdBOvt8NYlqoEs1CBOCV8nQMJwAe8yVyu61N0PCZ2ODm1h29iwZw8WTr8aIJFmZTFRTaPaTNSB16F20FpqJabdDoysYIKygWJRz0AO3I5CP6wSJq5cHqifvSVRDRwf8cCz8MyTHCBkHRpc7vnrS9qCOEH8fCfT7tUVOqT1H2sRJimkV89S3WJfXxso.hFW9S7MEFzFAmQomnleWTYaIGqMU0DVhaDEl6QNia042KTQp.UJESlCWwksEbWtHJ7k_5o3.RXcrmcXHBtn7fLYRqY7y9cr3Zq4TU6Tkqyv2aZ1Y6Tai802mrULHVN0H1nQnEFoz0.jv.qGkI5rXX.Lf0NtZux3aMqfmfZ2T8uulqKBr3129OEDv99L9vIH48OFB0UbBIkzZgm1okpg2dln7iFNF1Ms.LX8X98BQW_yc9JURE0ZxjAu09NBFpHIuQb_Kn6pXBgHPDMKKBdCnLQelG82GwN5fG_4w6v_hmU5E.BMxjKtlXjpQpxDmWmd7fNyVTRFPH_xRGBD0xzWjK4Ew.ie2.Kzicn1gnVAFzObAS1CWQR_i7UW6HHYcg1ENNsuo3z74uc9ODr11KGZopg5bWpH.N1AD5Mf87gyNRcJtPhuDDYfV5ZUIJ_bXzM2E0oNYkYkke5TP.4lRZnC3VkMFBuqih6.NmeL8PlE5xezKZESv0dUP1J.uxQMO1LXJ2Kzkyb2Bvs2aROndFjgjnJm.w0FlGn8nOJsJGoUWpDmXbAkYFN6cCeCnunQimLlDEuyWIJgzDw3NPFZRUkdqjHUwogYdSBG.WZ81uL5clOAOoLwPg3TwdHcx4fxC2DXav5SWdGvqqq0iqXCut.gkWHCRLh_LsHCw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f70dce2e27f274';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\/2195807643?__cf_chl_rt_tk=nEMcp.Nj_q2XnxmbIxO03zKqV_fy2_eAU2i._iuzg7k-1739137604-1.0.1.1-y8TShq5gnoEWaZvDf3k5kfpYoBdKHGUyVk1De6MOwf8" + 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