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-aff67i31v.mit-edu.top/post/6082491753

  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-aff67i31v.mit-edu.top",cType: 'managed',cRay: '90f4bf024cc9d66f',cH: 'o3BF8w6spd70JPBypSkJOqLGewRUgAT0ebuPbSaXhE4-1739113405-1.2.1.1-_uoNHhD1tEd3vK1ieKFgWC0qujcgRvShvviAeGIyEJRqcLJx_V2x_lYloeCSVxNF',cUPMDTk: "\/post\/6082491753?__cf_chl_tk=6pmmt.pAqwdyBd86kRG5jZ0afm0BzGXAP7SxQF5iVVg-1739113405-1.0.1.1-M.yLPkfztrTFmuWLNSxlFnDt1rF7Ji3QUsjiaKlXl9M",cFPWv: 'g',cITimeS: '1739113405',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/6082491753?__cf_chl_f_tk=6pmmt.pAqwdyBd86kRG5jZ0afm0BzGXAP7SxQF5iVVg-1739113405-1.0.1.1-M.yLPkfztrTFmuWLNSxlFnDt1rF7Ji3QUsjiaKlXl9M",md: "D560OWStJCKeu6YhJ8g3mAAStw96AtHdmnRrGT0iocw-1739113405-1.2.1.1-T_ETt.lBPxl11guPMhPYrMw.ZQqluBK.prsH1T1gpdT_.9mBE2hrtW46dRoHtVCbd9B1g1dGrUtGdouL4a8LivLEGn5PGLOmnsNy9jctrXoyoRlKRpqj2h2j7zmPsMEwKTxQyw1nsc04beLZMQNQI46o3p2yxaFf7tFqawhD5BIinaABhxueNJKDWrrqfiTcKZXh_n_FUNcMCbxUZ69jhMPwK09w26FtjTUsmETk12qb3X_R7ZB8cKxJ1WZ2wXl1sK_AlY2C5hXWHLf5FL6i1e2YDUqS19uW.R7XsTtG7pFOQWu_h7dyOdQv6LtlOhT24fdhcuP9H9rE401z.B3URTs1TBYaxdUdkDJ_1.Xn6MF4.2r6I0lBEb4_HA4x3pM17rST2nr8KaygMRnkuBTFAQqywUasb8aAAPZRqQOeAVl6PiPPGdJ_BSTt9WbzTbmQWfEt4B6B0TjleGfcYrMzypH00gg2mQ8Isj0huG3r1p4NTRcGNjTCzDBFDTjfv9gxDoHb7lsIFYAXcRLDYfHj4MkEib57GWeETvDaBkE.uFe2T3FkR2mJsl417enjiNjyDRHyJvcIwzA._XEmH_ktCIhQv6TAOTE1cVYGTX5N9DNaIgYki.Im4NcRPbFJn6KX0ZtJx1KX5DBPVQKSI5g_lMjxbRQATBZhGowDFDKbla22mT0YZ3hzE4PQh8oYG_YynGAa4FCmyyB1510NQA.1NkTnhzWTKlUeGjTag1_UCy7YOPD1Y1LSLUpG1YVmFKFeKaMabVv0urUYtyef0A8zC8nJriyhfTe7YES7pVjY0ySF4iDtfcVRKiFaj2zONK_TkK1doxaLDqkekL02yEMDi3v1Kv0vWiAJoM09q_UaKlE3HxHvT.Hl.sO4vAX_xSRPBZVjJOc.WRBdrjDRvVQ7VY7ECs1K70sNltXVonZrkIpA7Hbev_c_8PlWfYx4jA2aGTGPg71T7yKcDXBU9Lo2_1TXC83RJnV1V1.h_lISZSvZCegvFUyC4Wts0boz4pxtNbgki3cuPg.j2U81mvAivcuiXg_Epff6Tx_nealVWmuiFxGrHQ_8eliLTEIyU3t2Ycpq05GewVO8.ivXsSYu.zXN7HEzFXZnmFjedIVIAWA0ze_84nYY6qKatYMf2xaC9WNxjFoOIB.7NCP3Rag_iNDiRkIO_T3bAw8IPEnzgo4nlc3x_ygFwtHpPjNaVLAyIf78EqIrb44JgAx1yKIE8vdSmC5WQNX0H5UwFWhgaqzgwpUstwMK2dsbxz4dtFEi9ui66jzRGtoTBNO2.tXmiXqrNF99i7Q8dxgju9NYEROSUkmOx69hkzEmEaLt.r_rXiffGtVkGKp0FoV0Mn9tWgEVwh7.KsG1U3Ju.ePNBr70zUuN7hCGHr67C9fDNulk71XeXL.En49jb.sV8uoAWVcYYhGbaWu6WIG399iTQ2TFoGS1c57CT1mJmJ6XB0f3d2Pfaq0f0lM3rvJlpKk28qzAPgULQ5LuP78isGgleGjTuxlfcqRjaXCJ4Y.YBytc6rl4Ufu9e3GPEXLG7i29MI0zN6jFAJ0E9Du6Xl_J9LzkND3Wq.lghEpsZlGcnOVGikKI7hyVMSy_QHe.w3cT72oUHvaNwiJoqFm_iy1q937CEsd_blE98hCC1_Zt1qWr4MtKBd04Ib9BeaG1q7YofOxbsCwczMwkRkfPSYlgqFxJzLljIhXDZa6DbKgHeq5mhDokf5dogAipcFcoTmIGgNypngiBjYamH8TDOZxdekFbCead6_.Sd8bukjD0RzODFMM.30O3wltmoxQNq0De3qn9Z0BlOYN5_1LqD4X8Ds9v5magJg91KqgFMIYrj_bf7Q9AxT.fDjGiuNbMrwYCCL.Dlo7WCmVxvW3oMnjM_l2iFJNH1QYidkKQqtElMCeGGJ3ALd9vziWmNMnWyMEbYDuY2XtCSlloH0hfCiLTvcVvcT8AB0XKtnEf7awKkqTLHzIyg75QmlhwDUs3iqgDp_FJKGcKlPZNiEflW8tmpYTAQGGbNPbS_nyfJmBxoSj3SIhwg1wigeG1wib3tOZdZ20sMLJZdutCHgDjzr2sQFhE8KMQqN3lOwqkWkAaZWcep0Bo_GovWeOQZ0xXhk33M8xJTAcSKvr4IGiHaGV__Smo4Mr4U88HDfc7kuJ8uHotO7pAUbwpQym43EOLri69rGC3CCcmplb5GWbswmdNxNkpN9SSi5rqNen3O_xwilQh",mdrd: "4ENmMxKRr.qogLb.AUlrgd7HpU6OVq9UCOmNMp6Dk_o-1739113405-1.2.1.1-1c0y84LrSYBbyS05FVs0BQejgZes0_3WVcPohWYomxZ.NZ7qbvRe5DsaqCBQ3AFOq4ubzPnGHDHY0chQrNgMZp8TVBXcFytqIgEaLwX7mipxYbEK4pMQOMEHJ8FMd1.gOJrq0d9Oxlr8bKcGUdrMkQ83ahLWpZcCj3hvFSXOek47O7vx4lJ1b3Bxcs1gyKRVIWIRb72n6BJGPStDCqG2Y5JAi6zUekxmnsCGmwZ6XIVf3D0cShL7.VYt6L3TyV7wRzFLLufT7rmnHDZxVOfa5k_DRol59zYR13kh9AqLI0eSKQ.UV3yLkqhj0P1i87pXEBnW9epAQZrZmO6Ogu_WPTLS7zPKgbUHezSgsTGOjskVHsk8igs7vVvOxLahausIwTUcGRbSBWPWkXTd3hpeSEd4DbOQ8W.WQsDMmsRcnV_SOIUlV8U0kaaiweWVm3p7zt9Dlk5c4heONgQT.C5LIhyLe3l9OLqZVkowh1Nidt0956.d69HJSpggSK__LnIq1n1KiIUxaNFPokOwR_XQDw3.jb6pkSKQYTL6VyCSJpcfmbf6zE2b15ZOmSn6hhl0nmrH2lP3em2wv2qENxV1oD66nv_bT9oOZ52LK.bYCq3q4h3cVutsUib3wcJEJxM1KyYpxRLUBYxBJmYrsjKtIksfwDaceXVFq8nLPT.9IwArZGNA5jF0BKD3Sh6BBGDJ0EoibUY_.NkxnIKc88nvSHk2rOcJErwrdgxV7WxVDmNVmSxpdZ1Dg2lJGEte.p_PQi_3GTXg95c0MVHnvZd3DTDWNHuGfdB475oImgZ7ebv22AiM7F_KKMXLBhhMd9ri6sfJFj_NgocmMdh.z7hYkdTzhFjmNzgzbtQlFRvJkamZpBnBXmAnsBgtAYMtj4CQh73YdqqUM.tDcL.74fTc53LziA4G8G3pQP4SdCnEUnSA8AtKVcoKG7E09uH2dIg.KvPmr8QA0isfp0MaDJA74_LSTQN6X3EJWn0DiTQaW0AUVQEG5nCf32c75etwyFeahNx2mwH_vcTqULQnQqEHLBffUD8PUdiomNKi.IolnWrb_Q6p0m2wprL3JwXpEK7DvJPLxdUqX.g1RP3SOxnroNwIzvfScZbftgS40gCFpBygzNthUjXscOKy8fep7AH8F92pdoPTXUi.Hmr.zWXH8wBbcI.wCFG4k8Kz8bxNRAHdM3AvJLwN7cs.1IVmf69K0AsSedmohvZgn5xCDMjyMBYZTHQhobYs3Ar2pDjShIyTqwWULs2d7CMIiJ1sX91N1qYt76tYt94_pUmV4qhghLrr.fXCYdzPUW_M1yUdlDxqnlojQz7mzLHrERbhAxREcXY.Bw2PuIddzeid6fDMIsd1GXGhZOZ8JJKU0IV9TgwVmdSJTPEbLveTu.4pKBof_iHvUQizKe1iJ2hjHg7UIe.RQV34FWs4ZfkdtWZhi.14.M7.kUkFwVNNDN14yGG_4.m70_U8f6MMEyCw.g8Y.76UqcRgIp4TvkwaYqyDV5u.bt.UU7Of5nX_1y1bAWTqlxFYgDiyk9_9.nRNU8LpXMTJitIDFXSqkqkThHbE9xuOqOc_7RHfyPJ32qRgIg2D2U7kn1IB9eRL3tetuqaTLYPqkOkdOGGSkysx.zfNMDbMLa0m3TyHEczcslcxpEcizSrb6TUukom17eUvv7RldsIqWXAFOXbozHjmQmOiNlCxekzs75UxLwcNVvMWRKSBs_.k2_3pAc1qBSl6iXy8ungIGWo4v.Ph12I2_QU1RQfdvADfMgttb3yLXga4A7HqwCqGLS59.WAEgS0dMiXcrM1SuZdS8JeXcYNfku.KzHs"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f4bf024cc9d66f';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\/6082491753?__cf_chl_rt_tk=6pmmt.pAqwdyBd86kRG5jZ0afm0BzGXAP7SxQF5iVVg-1739113405-1.0.1.1-M.yLPkfztrTFmuWLNSxlFnDt1rF7Ji3QUsjiaKlXl9M" + 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