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-705326016408.mit-edu.top",cType: 'managed',cRay: '90f3acc4fea8c57c',cH: 'YoBW7C_D2KPV8gCzPayAy1vlcU05HlsDQqORENRz99c-1739102172-1.2.1.1-Iedk7_S1IkhxM1kcuX7BNtGiBRagrpnrAglSMordM_HKovRGZGixUP4KuzllyQ7x',cUPMDTk: "\/post\/9172360458?__cf_chl_tk=o6Mh4twj2mpbA4MLBYCnRB9onadlfQLQFzzuuGlY7jI-1739102172-1.0.1.1-gGsZeN9xDVZoeYssBi_vDBqhU_t9TfUvT2l9WTkahr0",cFPWv: 'g',cITimeS: '1739102172',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/9172360458?__cf_chl_f_tk=o6Mh4twj2mpbA4MLBYCnRB9onadlfQLQFzzuuGlY7jI-1739102172-1.0.1.1-gGsZeN9xDVZoeYssBi_vDBqhU_t9TfUvT2l9WTkahr0",md: "gAuxMYEpIytt7jIdr1InunTwzhmUHURonjsQ1O80Y.Y-1739102172-1.2.1.1-2JpLdi6L0HzbhtPcAtSXlxMOMaMQFFztx3nutC4REUDf_9EjMz_ERhSTmtu3LNo2Rkhdu2pgkOUrb0YU8UV6SD71PTBKnz0Lq36d.x8St_uRFMLw2Vk97EHNabeQCsbD9kMPA31dcQhsvVCJ21l1H8eU6lIjea8cU4jQw0rVv.pi4LjiVqGvPieWsGT3kmeEXOgarrlM6pt7yTJFSgcrdlpmnmpEUYrFgOQqG3mBOZOmvjoGniADdip8aXuHeTZivyOVUm8R99il6BWN1o6RJw_zER2YmtzKAT8CmLcLX.cypHejoU35bbUcYTy5CQFaOAYs_3nw3tF0AWqBbRn4GoaXPXyY_Z1QF1bJ6J93_60KcUfWp2hr50d8nCAWjyLzpvcQ1NvJgJ328sVsRPnieOwZSKF6SQ6uEWIepcIPhzS.qgFgHFC74x4P0i6nX18Voh.Qw9z53kERmjmAUZ4DtoxDpFvtq5aJ_p6tSCvga9y6PmCung7Y7Sfepbl47NB4s7MURq1EzNQ5M9fLOAudnVA.8tixm65aa6Eb4LOMpmKEkqbz7TWzCjno2OkxacnmaAMUGa1A5aHvFSGcbpD3DaW5949yjNGx1oEGWva3MTtqcj7VWWcJfR.FFuI13L99zPX5Vt5f9UlzPEVw33m4TtKcjF6sFt8cmwrE7z2NmvVb9IHCHJl2qLi4cGnYnPbCQIRm1xwgzm3GwlpoWHN7YqMvx31ZtL9uS.lHx.tUalLVN4S_oa1njcT18Z1RbmVx8e16inLNdJJHJz2bnBsKkX4ZJ5sNGg.tyQza8M94NAixVwd8VRaCaThEXz9yqO9.D_msreCmzOQKRjKhgtOctCIHsklPJYn2ZidNIY_2hSk4RK7BGjViUfyYuxp5ZIaiYDOB7okoonWn8_XOBp3ffSkQCzFHntkGSPaODYg7yosrNmSaQkiqVmomwOXJG7tBpm_IFTOr7HknaeB1zs74shzQktS4IXtbinkZnmvKkmGo6V_0avBjOOAIoX5r4Pgz0gXGVQ99CYcMh.0inKL2yghJ50p6DGJAaUl6IdY.6tHA84apCDlrsqXa9Y.dgPRZO83Hy7bQGymWILDGzM9u9TJ6hdCjS012rkMETihMRoAu4VT0Y_jV9C4qmcZVYNv3LeH6vmsMaSnPxLwu0nISvZFC4wFgKxUArajVz9CC7XRL5OiwOrOBXAt.9OXDSmlpF40IHhhxfrXRZA936OkT2DYJqpStj4yWbp_tu0abxORd7idgVHLlRf4uSyfVuPTPMidYsqGX8_6GlZdJ2G8h_vtPgkiEd0fZ1Aiow0Z7O.Iv8le6f4b9uGK99gycaZcJZ6EXh_zucyTd_tMdKrZtcFrP.ysJTtmfPw6Kq8R2sQOujaR0YsQvDwpoj5jny5fTOL.1wQHzt13bcWilRhCa.FJWZuGq.kcds2f06gd9BVDF3dIecS91ytlOMFVeemzF6lFxDAK5pl1cW7BDlPHBtnuHl9Fq.UDZvLcq2Pd_RzNOY7S6aq48OoBKx0r19KfkyhKhaX8CjnwgxkyvA3assKVQKGAW6iG5r6pQM1Z_IDUXMDQRjYF_GYxnnturYSqPt4cQ8jqUPKVMH7pU0yJNo9uzw76wADefArlUDda1X4AHlUk8adb6yzdEm80.8dnlypxd7Y1YmqDPmISWDqVeVX7HyehMQ_NZ3PWE18bgzyZij1KI4NXzTlZhaRa_zNgGTS0Zsa2aGBXLOj8RKLaLbA13QorAmJFd2jmMkpdeQDZjxbWTsv46eoA00DeIXJ4Hzt73TwMxm_FbrCuhtYkvSRoo7MVm04Mk_Tr63CO0zZWnNs8ze5JKHNrU_gu4zuHsDgLtTW4KaX4eMCw2eSfBOa8jOsEzmMxA9JYGbu.XGvsfWjYO_Rq5P3ZrouMjyNXPYX3NczVCCYThfIsVQjG2j4.7LKi8e_2uTOhaUteDSIQ3HOVg7REGB1EmuFPxPT3nBT5bLPebBQXf9ReXJJ0vK.21Yv5gOrENdrTvjxrBgn99w1z5_IIiP_OavW6PtlXKgwH.uUb0ObOa5GMHP78aQPJHaw3adsG4LYSxUP8E0abstG4yrU7xE9_WjkfP9a_LVsVOMDLmUzSogG_qP_o8HAyB33d8YHtBR.pphiSp.jvAEgHprQsd.clepRcQSuAUSOqJjC2RfRLDcBqfNBYdxp.koNc0yauTu0Yi7moxKSGIBc9IsXxwPpj5eAM2iQ7M",mdrd: "O_5pj07A7x8A0MMbcdkEaECX8gshXXDIZlHp6RMRRkk-1739102172-1.2.1.1-WLqy83URdgYeRDe9g5_ztJ3PkayCav.BZG2F8WPLkCWIFP56Y.0tylfE1k0CvLGRtJ1iXKvMvzou2qgj1LbkGemIn2l1TJU96yWNZ21ImCQ.bkAxI.hgPrFhgymjT9VelOn4flRp_AQ762UuWdLsDaWZ.x9RQLJtU3GqpLoqOxDKJG6miV02b77HoOOmeC5CcKLmLcbgpvtdBmBkYzJdxXKrK642CSSTq3uHI1ciKkgLB1FlnHwf3a5hXLbhVy1nK1w9r10F6D6PJdmKDEBfhMF7pcZfpLJl2LxXO49cPJ2j8yeBqDZ1szaeECrdKmqIzrFsL5sncmMT4bBe0WmjeUKKsvyiIhPxMqJH0T3iNyLnMYUj2XFt7dq4PmDJB_D7u9jG0CJiI3UJzR21oZ0EZkabNuBhwR3h6oKILVLL2OYlRKgBRXmd1s4HXrCXsPZ0qsCfNoWjvzebdsQqO5fDfOXMWXDbUwrIm8eHdH_GBCjJ923PnytmPnSJqDyLcqchrNSOJCeAfaLupbh2nkcKRvZikfpLST4.ee52TFJtTEvBGELzjg_OWdUGJd_qPN6ij4NVrjyI1qEJBuuXeYEXQqWq2JBSrOfOusr01wMrzCGK5tEMobC4z_T2MS68bub_.zBzm28QrJdjxeYgPXv6TObO5PpoyEjsAW_dkzznxXA0tZZl5XgUx7C38dAFF8F_Su8IJinwIuMiAW7V_qazWFGAQwUBT_GquGdwL80oEG1vSqwdVMiUfnOLXuGihw4AebWt2cxeHbsCLhVGwb5YMAm.pVHZCDemDIx7VRlxUcFDE6x6_T4XdPePypkCDz0xti_di02nLVwpcsmK.JZXcXBrb7Ae_zI.hfmkHv1nwGDNcczHAR1fGMmwhWMBG4R5Wl3y2WATcvondrJzZyyd5nNvWibTOD6YhObBDuLNYm0WyWwZk65fI7Ayh4L0kGu9JSCsoIdEnhA3gFNjIge6zg.lorCMY2YZ3ex1FKVGhsAZb4ZOpxrbz2KV_5YSgtYtynHu1vF8yzJ0sADRomsSkPvzCRC8iEkts9auWpRNBlqVcFbEdHjLakfwsV.YrugLUcbEQox3O8Ie91AlWUh7oL3vxib6bYKselEEFQaE4ijrRosmED4xx9beCDGKU346TXltQ6jjsQW4zBYzNltvJNQyKe3PiEFRORslyzYkuZnBgDwP5eu_EMMw_bjc2pLrBANP_ocAyOYg4jYvFjBtwOHBeJTjQ7.n3UmqNJOWBCs1_Nh3Mrhy8XOpt.xzsM8eHtZdPA2Whc2JJOZhLMBA.Rw8mW90IvpbNEwP4xKDFCfIOIdefnFTKrdcr4bp7tEX18WgMhXccfvL2NtSctiKBDKIDjBx.YTOQK41jzLvwauFYAUSm0YSHGWWWniJbL17wEUpSVij6epFsvZMrnvNYQNSCJ89SncYzKRwwI6IkyUIlDqWThVcwVJ815S4H6UWF7y3W9g7LjOAO6XFDCddq9wO7ZFhkmnWjTy459LxrDBeQdkHyKRk5n8KmyjHbiJ1Ntn6HPf8WufzUM7YlcobWPKZmxSAh3QZkIAbyGY3NeZKb.0sld4a2Rbu2tEFwqRHfjHH6PswDPzHpvFjK_W72_wyKzZ8pOOuvda4c45LC.nqXWMsIpqGRy9rZVbfkR5sItmpVdzVrc9g2cTQFAjLJqMtCOSWclfFjOXNg8TWn06pwcO.VWyXc7hAjTkNpk6gt3cCo2Ci2s..hp03UiGHAmQXX5HFDjYkHRICxUUCRz97CFHJeF7Vil4H2ibErKecjMwERW2.FWFkjJpILlnHJA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3acc4fea8c57c';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\/9172360458?__cf_chl_rt_tk=o6Mh4twj2mpbA4MLBYCnRB9onadlfQLQFzzuuGlY7jI-1739102172-1.0.1.1-gGsZeN9xDVZoeYssBi_vDBqhU_t9TfUvT2l9WTkahr0" + 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