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-affcnebb7.mit-edu.top/post/6785329014

  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-affcnebb7.mit-edu.top",cType: 'managed',cRay: '911056f33eaac59d',cH: 'f9c8Qaa4alnRohjTjBL8t6TTcBTk6wt0DwsJcyQJqYg-1739402744-1.2.1.1-goJHJAtPYUXimbHmrJSW.n.O0Y_Wx9aOsVQ_l5tlzBCcVdzvPK0mx7lhIJowXnyq',cUPMDTk: "\/post\/6785329014?__cf_chl_tk=EGMVvv3bn_zp4Q_sQ8BlAYSDNIy.IPORmGQZa6JS6UU-1739402744-1.0.1.1-fk9D9T6vg8E8iX41Hv6q.G0CHpzz6H3SGi7355xCoKM",cFPWv: 'b',cITimeS: '1739402744',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/6785329014?__cf_chl_f_tk=EGMVvv3bn_zp4Q_sQ8BlAYSDNIy.IPORmGQZa6JS6UU-1739402744-1.0.1.1-fk9D9T6vg8E8iX41Hv6q.G0CHpzz6H3SGi7355xCoKM",md: "RLgnDR3R0xYuDQdAuqSH24HY0Fb5iyBtoB7BwHEK2FM-1739402744-1.2.1.1-5gC9aQuvViIaRn0xa6dXmG_2Las8WNWwI3QIjFAEnu9vWgX6igSka_Wp7FdWYwWOymc28lvpK_jA1CRYcxDATs2abPxGwvTvFh0HO8.rD1YxQBqzwTDAuMGb3V2UZujH.AfMcL9VGxn_xjCvFc848cCOR_fvkU1mdqNBySFPPs._iWgc5J7o1aYk8KoxOEeRIxi1pmb97PgC7bcXcIhNJGBUF_3_2czuOOHIpyjuIA4CLnbwSmGrZYl2_R19MAu3i2_tugd_XzDL90PWNcMHw7MKovbNBzcG5LauYS068Qo0jIhtp.0UL7uQxxCgcvdX.Bjs2YAYiVH.7FDNb_1GUmEJW5uNuk_45OQIdVXNFpUdje8I4asYdzve3o1FM0XKcJU8pqznB3jsGtKEWa2wI4YGIo1KCPiY6VpUqVRZmaIiYUJ.37SRYgAVTcHlPZwZNfxs1pO38fFSVyyv4shmF.JI5UoI4xPz50t7BNZl3eemvH4icsTypKCdu1mANoTX9afWaTf_Ftibmd9KSPYYqx8gT0ECn2uRmgemSaUm5gnjOw3zfdN_5nrb_dZUx0_6vv2fDPYMdCltw3xJpM6DRAj6Ruxg2pWyFQOyZMy_4VcV_RODOejH8tIdyyLi2xNEaig6RX8qHBOlPUYEXMPyFnRNzcvwPR7zGOD1VXV1Det8VnpckjpK3SX66uC4AfRGaPMfIaFqwuvnJUkUIFp_e9tZSbAtTDOcFcsW5Q8JSWyeJgNfIGTeYxpnXSX9YyGYyg3hz_w6iZfZJ7Y1AqUBA539kIEvw59VkbSQnLdbZPhF8AXsJm69OxmqPscHVCQHt605GMv01UHFqtCFbztFDLf6jPrT10V_wwIwzXWbKRo0T9aq0Yql6cPapGOm_F1LiZQwKsypUF3qllBGPzvIxlZrHcY1pogZDN_e6pebC8EZ2HzRXlKkNoySzoIOUmdzcMkFUq4Wfc6__gX6F_vw4Hbql373vcVJjfUZJEbg37stuoUh1Kh3uXPa6ELZLA4fSJnvyaklNW35J0aW_URfsxYOzIadj876KfAAVEzD8zKG5tyyPcs3D3ndeR7.C_ySIo1EUTVnD0H9NrOUdpJNHyvWGTMKUAcmuiDktUE4ScdoUGQI9vFfrxabvAO0JP78Iv3tjjIHGoQcWFs9fh8mRddSqaAOUI7BjS8WPQce62gp5jyBoyUd8N6y4kZatlVQ1R7ynPBRGyBBDgQXs6rV5LkNUq10m.cfbtF4ET3qyFby.p1Ebt3eqDZD85ORChaRVDMmH7RUdfcaOAwo618MYYOwzWghtNlfgE5yg5G1rL_uC2DB7SbNJnwpMbVRetQkPpBkRfqIMrVNJxuF7rNvHuDjoruvZtS76qAsnIKqjlKTnOm5TDNNxDEzsvvcaEC4PDlgGm0HSrloK3GJID9dIn3Qya5YhZbRWc92P6Y42ig1EW7uZzloillUYrWOFiAUQmrom8xo7rABhgN6nwGRhZB1PDqPcOVIAB8J8k0FSJ19CPWJNC49Uf8HiG9l70aFbinK07SLs5CJNia74QUynSkuawXYXYL4tGKlJOsTKOAAsRZCE__0JgiAVX2LRcFgiB2H_HUFLTAkH25XCODMKQzDur85qA76o1w3v5mb5kWFaKCr.xG4K1lxxO75Ah6FF0tXLepNDGUFyaYn14KyIdYCpiFVoUhTG0jezWmWwHMFDu0INehHazFKqXHwz8KFuf86z0Mpft6aouq9gRgOd3GEvfxqRWgvYzIEywW3xQmHz5onqiGhBkWNhYMKVdTxF1zC7vOfSDkzbp7ppTlsUlCtz43cKkrql51cvcT3Cc_JjPM2GW6JnKFx0QoeY4yqxc_vztL3ICGAz9p0u16UvLKd_z3TwBxvhJQiQGh5vnh14ptiocs6k1G2X94XKpdNpr.ac3P3AeEpunCO6juiCqRpCbqSzecdZ43KO3UOdr9CUkPkpOTf8PCex7Vg1r4bagykp5SBfLze27UZuUbBFa3KlM8O4ynprWi.6pPC.E4v56GFhI_Ex2sxnZdoJTu734LuZe1k4BJXGjAD5pSntdhbxdmmPaT5YK2CEodzB5U8ZvQV3Q6UNM_JZBJVZmx9dQmEIXUiW8aTexz8Dx6MBuIAmlAu6HQSYthaRsl2HhQheu5cGU3O57iWgccCoavAKPjfxEU7P08Fs9vRjFeI81OljhQFTeC1yX6FwKUqn3UTV70KR6a9XClgdaT6rmQR",mdrd: "8WquCIrxAvpFkbdRJhxydfLODni1wzYw64.YfpWv1Rc-1739402744-1.2.1.1-wbdshSch6u2QN1yb5mKIc1zqXWUnnKAE821Ga06HUenI7KJJ7cDj9xfvgnchHdrOMSSup.NZfhHWVBMEdr9hkz2wQrTZaCaczq0vrpqVj99Pmitii6NdzORIMbwcTC2qKWxXTZK83isqKpdCZpufec9sbYLcp0yFuz4KAz8RsX33BOISDquIgiFGld.MNxJ_OpckxkcYK4IuVoa5E5G2kd02df342j9Ffruay6._P3Lv9N0_53ZEGc2mytlDjx6lHtM9xqu2BV6LF1UbcnWEafeRtrewonVeLtXC1Ghac5zAPbGHB_QUNzz7ByjLbqrVCyoG68eQm6OX0ShgeKqJ12WAy12CILjROV4TEVnn5Vy09XXz_snTT_wrDd8SqEtlcGqaorbKDOre8cggfmfw_iaTGNoWAXCuykmlJcJkdjAQOcedvpP6gQQpTMZ6iFLrXvR2Qr8qSqdS2Revqsr4yeoxTIp3kJPPAqI.fZ950jbxgAENdIwVZz1V_YYX8tQ.bUldnznopJV8QkzMR2074AphcDcw0lFe4gktPamuf33vaa11OlkgTJpYhyMOWfPinFCGBFzfAuNDw9vsX.7XF220KjzDSq7qCZY736uS6V8qtZ9.h5H_sH7fCoSj9pvqfCwU_iygg5EYOiJ212AcK3H67uILwzgLfZcgzyivxKCe6hKVtUaoe5KrHSdkR3hI1Qa0tYBckVQywL20zX2r_rge2QZ98CTZSjXW.RhgWM8gqBXxkdD5RxmRYco85PwGhZYtCStZzLf8zYOZxkeOKrVzvo7LK8n6nL5pxgSbYjwCrL0gY1wlUU_iEYHNWnn0SL5kiPB.R9342M8gsi769SwW8qDu0IG57Amfhjwr56294EVEHwiQL0MMylJTC9Wqcdg09x486qR_Fed_dEQy7Aq7t1BFb9SQ4JNkXlDq4fqDFi3qydCjArzkNj9K2bjVPo96CVl5M6Wgga5MCER2Xp1N86XXg39OzATUDxx1AX6q78XrUfZLuJhxLUivwl4wyzk8BHjRCGDRPv4fFrIGeNpFbm1sPmzaQi4fIgy9wfHTsKtCHiDMXtwToAXdfbNbo1d_fOeA.xCzKhW4LQc7K1Rv_FcDnG9vhoG2zA_nkTkbl5eMk65XBMnayspSVhBEWvy0EoclWH1WukuXTVqbhjDL.YaRnVG4q9vG.DM_Ur50K0afA8SN_kQDDE1zO21lwEhA3.Wq_7Wk8Ym3IozDEuZBQ_O_bj2vqsMP87pSwV5Tpezg4BbpUgBZbf5_Q39ZlzfOvhITvg8iLSaR6enhC0iVKfOgcmctvHDUlqNuVuYw3QsEf6iPiwIl1wWKrv5QXUz67cbD2_n5jBtUnBCMGOVg9hRWfXCoOReo9mPK.wwP8RErq64.p_4G43zupMkeb1ypXS9KYZ_xsbNNmoK5aC2co0KHN1eVlRtEqdpmzR_m08O10oE3eQ86uffnmsLeMsWrKja.uqTs3l8dzw.zNxX2G1Wuly_Fb9yaCflUxyzTC2Zd1lp7WOQPaMzJF2FYVsNIx0NIGQTiQvz.HteWL8HY5Xq2B..aRzujuP2GxihDQct5VwQIybVAZ_AqAZUS.XTBiTfHjLrsAnvu4qkRluZQrs6Lqm1iAWT_I_.FFYcoFkm5XGRpwhBLqchQODovV0F_f9HylzTMN7Rs6GriBrrsNKcbjGxm3BWpFSh3ldNX.CK6H86uu0QLPC4DjUo8n_hNhJNgzg.Qxy7m65Ym4lWOc.8CfMLOzqEhVDGcxM2BmHIGCdxOm_rBCLPru91apK5f6ZQyXJszJos.XmOTFrsvOUR1Ix3Xk0kmam_dQQY"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=911056f33eaac59d';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\/6785329014?__cf_chl_rt_tk=EGMVvv3bn_zp4Q_sQ8BlAYSDNIy.IPORmGQZa6JS6UU-1739402744-1.0.1.1-fk9D9T6vg8E8iX41Hv6q.G0CHpzz6H3SGi7355xCoKM" + 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