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-019077716455.mit-edu.top/post/0198472536

  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-019077716455.mit-edu.top",cType: 'managed',cRay: '90f830ac7d71c984',cH: 'GVFkiIa9r6OQrFKCNynwO.PEseK0yVJaDWqsraxCBPs-1739149518-1.2.1.1-a9y3LfyOAQht3yeg3HMl5sxvaNV9cp3jRQTYtS_pTg1jn7o7WTNtIhwKJqjmebqN',cUPMDTk: "\/post\/0198472536?__cf_chl_tk=wZ2.y4axVM0DRrv.ZptoQNgrjlL0xX4nkMwpe0gMh64-1739149518-1.0.1.1-Ta1KVHQ7PtY1x0rYy32rN1gTgm3zSgNgnrISm7YsSZc",cFPWv: 'g',cITimeS: '1739149518',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0198472536?__cf_chl_f_tk=wZ2.y4axVM0DRrv.ZptoQNgrjlL0xX4nkMwpe0gMh64-1739149518-1.0.1.1-Ta1KVHQ7PtY1x0rYy32rN1gTgm3zSgNgnrISm7YsSZc",md: "vjdtkfbY8XUtRB7xgNYrQQzoYWCH3GcjnmbqZzVa9m0-1739149518-1.2.1.1-D7kt.v.9.YUomHjZUUgg_NcDrHRcUtoZcFKsLetGKpyseQPB0okFUtDuTP3LiiXq..oAygIFrOqDRhvkAVJ23_daclGDcj0wkPJn2AGeUK74Y5i.Q64Lm2YrUn7lS0VPN6OaRc_hZX0oVFczX0M.lXdQS3DswNneA7xLquHmr5x6Q2Kh204yPn2LBtloUX_srgq4F8zcV3Gz34Ic.WvCV.wY..gc7iZfhiSOEioOhBndr8J4HZ_qHygl7B7PbX6SORmmiGC2K9urnL9LVu7P643cjlOEt8h3Q2E7nyFBUaWwap8Sm.4MI4.pEsfo8n8JNu5BotzolY2EYTVvCApCK4I2AB4wrZ1MJvKjT.aYGeJwkgB8pZjgHJlaV68nrpqO8ZZHi8j9zonyyw18KhMkAPDLPOOCtrSSXlhuR_.ZLj9deUowjbtJbV56XaexyAO520df8eUXZ9LTQZD9RFWQCWaY8I4usnsHOdgYsIB3ZmFLBY2b3hs4oTqEbdwY5FXqqPIbgmNUxY.K4UQysihSExIKuLLzMXFGGMEtBsMRg2TEYKTlPjsUsvISyzUHAQuGdisUuqtzFb9IB_HIFGfpeB4itHzMYZzzXLGBFmVtGfz01NZUaroxvTK.9YvswItw.CL.8NlqlOkRE5neYd4VYiIjFcouNccC18jn1oKMp3bFwvhqbeegI.RNnGUUktrIrBH2KN51D3vuBDePVoR3POqo6M85evjv9imEPFvrGpkYyq74L1NctQZaPcvJCqMTcd5tgoUFf9P_gdcPe2CP6GHVftMuJGQNj7nCSoPENvhzO._mqRNFj3cc3f2jL_qLmPUQd4.mkU1WhGdkCNPpn2PrY_hFZmxvDi2s.rH0JzhcAPbHKuF.60sSX6NEQRvL6YnBwatvsB7idcLdIa7pmK0W8oGmkBYf7g..a4e0SVE6GPiaTIaiSSJwdlTgj5iMIAwJx4Aka8hvAnIi5Z7sEYwqOWL7RvmY8TtmzU1pT8ituu7MyNn7_nSPPzHtguUlv4OVPC3bdTGuk1z34SkBTG5JKWEuWRvKUKn6hSxx.hFQtpRs.asn2mYHjvPkNa5.jIMhoxLekB6Vj5b8dqQ667YUYnCNE02WuRM7_qlizc1.oM99H4S6x.IxXKrdAeL03fF2_JUTCPXQbnj5yDpdXAJWGy6i9qbG1HP0HOFGHq7t7MO09M0bwnaH7TNvhnj4.gzEGAD7qUm__.6bhjeqxaUXRcCXHapqO81tS4.FHyye1vnW_WF8YgBTPSGiFDbjOKXnfHnYReQ2Sl0Wb4aIr57h6eM1ydY8aXDkxzzUoa4rW5xjc9FqJ3TcOsbqHzEVYpNCffh9i9WQJTuUg8hB2jIe3_LfxZnKLRhuGExW3DHmYSioxhvc.hIKk1bp6iXI5QAxmnLyug3q9v_ZoxbDaOWjlAaTEoLc7r7hZRzgwLHvL728p4Hw8I4whdS6WC6jiTe42AiopQvUHvrB7.JPoroYa7b.fKmkGfvXG5mdcPz1FY2h0MO6DIacnINJbUY0IGSWzvIQiXA5BGhpWblN0y0t1nrGv4zGNQ2ClnjHI3a5BOpZjC4xrfyBEo2AUGHEMM70TRodchRqO3Tte39wI869Y3nvdPo9HO3VVwxqE4W5GXWHf6s.JCN0kKy.YuPdxPAaxVAQosQGjCHHRdwQZmkiHEZfKluLK7Tez3JmxnSgSFUqOLW1Kj9rhrnzS4BtpnBvf3hzQl7PTsX7HO3EzBU0SZ0lXi_Eko6boFv0EL0pXsAarFIUI5g.WoBimaiKS1Lxra6QRW5ReX.WtcdWzNQ32bwIkSJssEVEMCoGyL5z.cZSUB7f2M0KI0k0FQBFwbyz5j9yP2ugOjtxCtrtgmlG.fe_lNgzBAQ2Ycl4yF9FCxW48URar1G6PxzUQ8hWfPCrGbKDLuq2Pekz36G28b6cmgZvqgFPSg0V6_oAgiLjG83TLXJ6slPWFFP.BDF7H23ZAtRVkz1GFr1RCAY5wFFnlhqaGybJu7HA9NxyWcjILd4hHFqQpO4P0gi9U8IZbP4rZBiT7jJ.b44T4PfVJTl4oRXk3Jah4CA7zCU.m5KwWVgVLNCNA6uor3wR696ac4OHVbsiaMj1Il0HWxVl1d.kY.pEf1xC2mNIQCA0dQl1W6R.PhJ10CLbVmfHpRklhzCm1GWFfNaSQExEDZWO07aiDiz4.X7Q_OY3hs3Pe.PK6wsW2EQXcFdmOdGdfgDh",mdrd: "NN__JMm.jfICljuAr0MxcI.55xq5jAoFaRTqXahR5ZQ-1739149518-1.2.1.1-EgTcqW9dic9GZDTY0t5HT_XZb8G1mNJPL563kf9WBF72Rc.LfzAodxnjaxW7WJiDwWv6kbYfpwbFKF18l1F8.LxDNIBlLLbGlOOC0f1YmaYIPcz646rOdHDgSAKz_R37Rhdg1O3xBMrzCcnl5hGyxqRQdbbPobB79281iYT15O9jhEd555MibfMTM_X3AeMCYZf4rbUZFWdeLkf_T3vZg71niIjmgXbUDb5zdGMyq6D5vQq_jHDgBor6DnqAgtuzScBIN_YwHIZFeKJcuOwBhHkOcxqbB7pW.OkdY4MFzxzYSdENnsP3Gy7evTBhLqskEC3tJRK.S5I9Ec0iETvb3Aa4lNeFrzI4GJgZBjrYQz6rkOq_bMtYC0cbw13e.4iHH3NASaWkafHdVDZuZQ.sLcg6y_ghx_L4Kj6225TgDrvpZWDVYTeUqZAdN33x1ugU8QOfurvyPuTiCK_UMZ6.SHhCogadq57yE3qBLuqRpoEo.Yxf9Ee4ZpOfQPrLju6xdjlbNMuJg1wFIYEYStX2xH7RHpdCovIdJEynMus9MTHeAqayszgAsbe_73oVTf1ed3RXRrFtLMuBgG07k51aH9VuSqpQXz62meBnOTyeTadGWBHbM0JkYG5876zINYzPKuFNwYRMg6jiTwxFpfJT_cNvnTEydp6saGcUcFVxyLmH2_SNnbZpNLA4hPq64HBSp3xk2wGQZvvjdV1fF.Vrxx.vkjxLuJalKcNurX0td14c0GWAH8lMMPOzUsJVrk811fJ35SkW9Mg4EM19cZ5CGyMRIwsW.vYUVT6dsyMxItSH2uehm5gmNiUr9fr0Czl3dV_XR1GAmaQDLO3AQJhelnrNgQWCCLlgFqBZxKQk58b_zV3C3_OnXdPpEqsflA2Jk4fjtL_JnfF6a2y_4mgInZmsEal4ASLO4c.7HX5YrVpa.K1P82iJWgl6DpcuS.RxCVA6DqrDyp6PJvPoA8wIgjaJ7OKgrMlmzc3Qv2zFlMn64kEjQ_1E.LbrWtsE.XvyU0cAN_bNxXki.B5BnJgfkOSrQG.58I71aymsJQTRWgRJoRTp1Na3B9XGXfNXxVsXi15.nqx5L6OFl2W0GplWARJ4Nn6cERFpD.MlX5EaHX0S6e2sLeLyx5EEAxyX1D9i03iqIWjExiO62jq2a_UvWPxrdtbncnflFPndlZ0p3EOaM.3oGrbPT47HixrOAEB58Hri4Cz5c_1e8OvonC3uh6NLQboynxIz8cdsD4K_LFsWqk_VHnTO0pjrZqUemEBg_HwtY_JN.KZ8RWh_vSlvcNaJ_JpocG9Lee5nSwX.o0W_TNVaNdb_Kj7i7eT_NNYmXZ2ven5e6AP5fDqogO1v7cXruf.cZLoDAOIDnKAuJzjThZ7wYnLO4lM24HZp1WOxJq5e4V5jC4.lfAYcQLtb89GJhADynThkX23JaxCnGvrbi3kZeycpbKHGLAeenN0Kk4gYxeDhRRm9bX3litPhY9oq7Y7.jczeduvMJqeDuj_zSDZdXKh1KILBvpH9WXGpv6iJ64DqtT90KzliKvzwCCFLAcwjrZ7Ac2IOAIuuthVxKpUGykGVReQvm1sE9c7YzKbsmkOcp_DLFlkIpQDUqBL3vOWuxvZ.Nt_pkgBPAySNu3obE86clEXCAzdZHrcb0IasJhpMSS05qG6ILvd7NEJk4Hl8TsUsgb3ZWOGfDSl189uIp0CCmGigXwxZEV.HhA47Cnwbz7h7KmiurxDfNgRmEoexyM2eGhCx9UW4pDD4tG4a8qLWDUhdTXpnrldmCwV7Z0toVXOLee9Nrq115w"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f830ac7d71c984';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\/0198472536?__cf_chl_rt_tk=wZ2.y4axVM0DRrv.ZptoQNgrjlL0xX4nkMwpe0gMh64-1739149518-1.0.1.1-Ta1KVHQ7PtY1x0rYy32rN1gTgm3zSgNgnrISm7YsSZc" + 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