for Atom and RSS and KML
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.
<!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-284835123675.mit-edu.top",cType: 'managed',cRay: '90f290cfed2e39a9',cH: 'g6m2AALl6AdtiM2mHpCJ7v5UgKaDvUT6JwEcJAZz3tM-1739090542-1.2.1.1-uDGKYYWTRWS9VPPZlNYI93LGCucoZJ_juMm3PeFof.2jl5fCP4ji184B0eFMpWtL',cUPMDTk: "\/post\/0431256897?__cf_chl_tk=PkYvyAuhkCMa_2LhRtdasOyX6xsls2Hfvf4Tp7hhMAs-1739090542-1.0.1.1-oSGGYFG5xlFpcNQLB3RckI3NP742wANPOvA3uQmd3G4",cFPWv: 'g',cITimeS: '1739090542',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0431256897?__cf_chl_f_tk=PkYvyAuhkCMa_2LhRtdasOyX6xsls2Hfvf4Tp7hhMAs-1739090542-1.0.1.1-oSGGYFG5xlFpcNQLB3RckI3NP742wANPOvA3uQmd3G4",md: "Tgjj.aUgXfQ4M1NDFNDdamCRCLbGbCt_32ihKa63hKI-1739090542-1.2.1.1-EMEFuE3Z.CQrIHB_qjva7y2owHpgZFFed2OPzSWCSHSJn4jAjt_Y3xgqP5GKrioCp9UHH_lRyGcjTl6bi83ieUC7cpP_qNLLgKW2_yFiJ01LUuFtXQB0SCNVR2mgdGkzCUS2jW5ek2WMZSCnuRVV6r_eNDUX6aZ0VcAKUocqNXvUTUi6its3qnTvo3EuxQpEdL.eM4zMWNX0Ed02NIa_8ZveQuJmoClglGUwNCv20wiHVYJcnAhNBv5csw8gupbN1MQSWdPpH8YzcIIR_pZRUjEXYL6ESgjNoAOi6IMTp7IkSa3aU0lWb0FAvVzNkny78jK5cKtYrsfz6C9Abrds0Ocgr9LTl1Isd2HL8YCwaEDT3QdTG6edukb9gZ0I9CDhVH6QUN4TEyzUDoYK5p75JT8D0dEhZxiOxeEG2EyTWyZrej_p4_t9vbFVVKabwjLp60uy48ZhtDPAEsoRpiYFxQTi1hq_l32sUmFjBnXDj45mBqGt.sxI9yjBq8LMEBDgXVsvbZax1TpRjfSMEWK.7WmDpth0Zybi_Nzmv2P4qLLOJtmcY9crH74GpZijWhyunH97LLilA.HN2QzvIycF2550xSFI3JrO12ULg92ca11OQ6ikpfvA7BkOUTM_c9emXPcx7NHm1k7Mey1VPj4SCYg70zYF0JDYcfJNfYf5s9wL6Zy4hzBC3hgXqKBagAXjZX39xx56T6Hbwe5RLGu8.o7vOnSZxx8HqBUbQ8XSZm3egqtbL5QE579T7h6KOCCF0WZ6WksuIx_nGunl3.z5ZyhUxyZ14ppPP3z96BYuNp_LMu5snMm4i5Cv96bCFgJ3MVs2Kp_GxL8k5QsvvDU25L5kvCVa1Pb_vFdogEabNYLXEUJs_ihS6j1qtDsEC8a.u.k7cyqQ3Qepi.dgVLEJc_efzQgqbeaHFBF4ke6ihMpqPiQe2PE2M.867n5acYu3_TFM_jw41F1DiNfStZmbkHcVtwEGXsjhtnTWD7iXSVJWIReLOrIQZNWY95xh8vAC0v5RV5EvX7aPlZNXNyTiPRocSTpOHa9b_WO00gU6nQfoonttKoRRcsyk5D3iLOhfbEYG6_suvdvdKFqAP9g39eTFLceJlO4_Wv61GFfA420678AKW0JQrrMhf_nM.e.Gfeyxr4slaXkDPVQhdS6Z3hdscXuKToT96WlD2h582el2z58mPuX_tM8X4tjgKHyppv3wPUTCVnTOB5e6eOigQJqTQe_6PmEWxuJrnrdr.oKmxMDExZkmjT7JSvBtYzITDU32q9LI65tGAIawucsqEZzT5vFLYEgdFvq3MKSRf1P_ltMRjmi7M7dLg1gYe9i4Ung2pMjjOj8TRpVlk9qQxZBvyT5M8ODE.Q6aFdxWq4Nro8puFGuq0Ke3Sj0MZ9Vm5IRAUQqcH7l3A4xGmGVtffPsxzNKM8IBLA7BEAKCmvEhL_CNEKXLEi7_lIC8rW6_JeRxqQ8ukSqx6N28KvvxJkEv_GyXEt0a7OCYemGfFvEJ0kQet3yo9997mlni4a_MLA.wf_Rnbbe7KMcr1la_DezXED2Cbj313esqdG5hZO_K2FvaaDL1vkFSyWRqh9o4tNDmsJGd1cXI0QequEqJr6fUPkeFSQS5PHAmRfRWtzLEjQUwzgjLZeiAknyIfuq07vEjjeyA4O0oIZBu8tqpzGUE7HKn3eJashWEV0yJQtofUIqWgSyATm6ea0uYBcC0wUtSvdSpWi6uJdfg7TlC0NOge2TixABS_CgQ.7P4LRiq2W2mOtoJEs4FaZWmoZrhcPTA_Q3cQK2jF8MLbZxLAGHYJnRxfeWnnsZMo_IrR2Y5PZ.eRZXd9Ug8Y0d1uaLoRB272T7Qi_efeY3f5_EC6d3wZFJzuJMfo2MXZeb_IgzlEnkOb_p4fQEao7XMvUBYlCCS0PVFkqFLG9prCMBjW2ipQDKKV5GJl1PIpdvjWFi4OGHPAocytqx1iq0moXE0Xwz6JNI59bkFe.zaGIC8Z9vv8.znTuM25.SKX4o1zW6dFT3ec5H6_u55NcdLMFfM5YUxHo0dH3hBFPyxlkZ37Yp48ohRq2fvnTofLg4ZHV6LVDGd3XK0m4m_CGBYy0dsv1LygacZcxq4h6aLNayXk58HYq6KqIFOJICtmUfLXvOBSddo0sH9IQFhgSwYaeQpx9Ng9CA5pi1vjuV38jbhDeUhAqpQcOR0ZPw1t0zgAbvioyhVQoOnBLKkwsUKrzD4",mdrd: ".xBNoehQ9uGv.E7vg0wlYd85xSHc7P4Gtqim57bfI7A-1739090542-1.2.1.1-pz7RNvh7pzbYGAoLchc0_AxLPYINhR9M73_asYifULQgmEWantoR4cpj9kAVj3BksWf7WScHZBLMVM0Af9TdCK1iZFNopK.hQkwQiUePHEF0HV3yLW4tQ4.Np80KahRacxA3hf8XmbglfJOrVq.MGIRlZj2iHPDqccrpYp742JyVp0xNLTgLIkwn5sSL6Hs_BPuGqTwEa2mZqPpRlCrPhjC68TBKWep1LXIP6JWXMf7raL2ES.I52sTeANYe5UwC.1j66oaaCQwqwhxhfcVc5sTtU_n5lrt30YEvHBvZNU0nYrtiQ8NGT0SH0vDxaLnteUzNU.E_WZvzXPZh1O7Mfgk0EKNzMr.8g.Dzihp.LEZK2NKKxQ0zSNHKbk26Y9vsMXn048mGmoCyMlMtLIFKuNBhPe.3wAiX_R.9yLWB1rnQIhJ7bCSmKQbBzG5AgOmBfaa50BF5nW6kv35fteTs0J_4idfVbdoQuG5sHwFmKIgwLixRvhXOPvxhl.2QRAEDHrkygDEJgTrW62AtS0S6kCcVyEZnKdS5wBRDpSuG3aoq33VMuKBcvmsLNAzbA0I6TKfnt_rpac_pbMmqLvjdN6c3Lgn2aqPAp4q5SGBI5ep2OPyt4.MbbhYF17uVz2147YcXXSOWqJ0OQKWIaj_z43lBFJi_7liSGBYuUyMGvklXLj_D3hJMDfQIIohzsVnpRtthseLGoPPmyPS8iepuoh3dhR3DPwULXyNedOtbfClO9QIT0iZ6r3PF.lZDAoJbQsSxZagf4.Y3ZfSUip_VTxA8KA_SrfHh4xeQOKSoAB75WdXlUH0ItjXRPFs90f7PAq2eznN16vzyJ31do9FPljKzJ9h6GRq2bY.cMfLkVcs3uQmZkr0kLTRKURU3DSuUQM.qw3vFtOeBWtr0PV_Nt0XifWgevq7CMe5MecrWVjUZhMM.VNhNuLxWmj8dQVbfk_nCr2901MLkB0yRA6oM7vfRNZfdtyoCxEBoYLwUxAToDiGUi3XmO1Sq0Cze4vY20LMLsgo_i49z5xmx7WIdnEjVP532PEM06GhSGijBOnUui1YmkNhGrVjRZZXqyYDXx9B6A6deBr_JpUYno1TmOBCh6k6GHq6osT_jrM_aDmFTRNfIUNgc_EbIfNuIl9WjlKw1AzxZa.TZ6wsTwr0zDGMP1xzRbnw6W_a9oETlpIqlYSfTxBMSaTfHyBxxLi3QKVIcEy6nrhO8Oj2OlIhiYrp_X7D_3Ofpzs.Y6yTNXnO7Xm9aM.MZxYlvRKxwmvM4luMG_CiTII8iuokoq085i.ZnbQSuPhudWTnxIiN94cKnhd9hutFeiiBR8dHQFraJZdW4TfZS_2Ihyix5.hImjVbuC7MTgrncgz6I_VWhTVcHxfu.OCWI4XkHTr07TgGy8Ynh_Cg.D4g4Zb0D_42y2sm.AWbc5UqDGSN.el6bTspEAbTlg7rcjv3b_nnq68Fz9cgkAH57Vy7kyAKHPl4B.ZP2Y3pvE3KbIJvLwAjtpgBiY0.FjYMijOCX4ihtkrKkT4BY3cp9I6rM11VBsT0uRdOBo3BRU9l0u3g41.5FvYZJdV08sXQmxb1suU_T99kbuwY95PoZ9UAUvOMZOm2JNT8JsteZZnFOEZY6hIvUihXKtSlKOAJvzoDyUtRX1o8KmN_N8yI58LTuejdp1puwW3ejOkGhFiBQ2pSMcLtiNW1eaD.4ogGERdfAjLhU878k6nKrJmDrPyyETEHU5OEFyVUq.iLhB5pFSN0wwAi0G_Ypiifa5pCJECFRmUJZ7K7aGymU3QQ7aHDSUTrkS6UvPlnsKUPi9dpypGwZG3oAO.Y"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f290cfed2e39a9';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\/0431256897?__cf_chl_rt_tk=PkYvyAuhkCMa_2LhRtdasOyX6xsls2Hfvf4Tp7hhMAs-1739090542-1.0.1.1-oSGGYFG5xlFpcNQLB3RckI3NP742wANPOvA3uQmd3G4" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>
Home · About · News · Docs · Terms