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-370486564305.mit-edu.top",cType: 'managed',cRay: '90fa208b68380830',cH: 'FpdCiTYyTL0lkFNQEtDNDJMgjD3p5YXmbxv9vRrda3A-1739169829-1.2.1.1-TFw3uiSAXGxw2sGBksO7G7jJE437ITY25boYXFWpRBODsLMtp3CRhXpWIOYQtc3F',cUPMDTk: "\/post\/5741938206?__cf_chl_tk=9JW7DiJ_5e7BN0yZJr1d2.xJlwnVNQYzo4asXQ4uLQ8-1739169829-1.0.1.1-4CwCzEzv.WQ2moMy66RfFK085MjJnSz.0HlLi23Q3l4",cFPWv: 'g',cITimeS: '1739169829',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5741938206?__cf_chl_f_tk=9JW7DiJ_5e7BN0yZJr1d2.xJlwnVNQYzo4asXQ4uLQ8-1739169829-1.0.1.1-4CwCzEzv.WQ2moMy66RfFK085MjJnSz.0HlLi23Q3l4",md: "pv4HwUUhwAZVgK.7mJ6G0Y3KQLFR9DvQjq.cTazI5uw-1739169829-1.2.1.1-jpfpFa0X0.Je5XP4be4uaw3_Obn83POQ_nSve3nE1UIEF09Uucj_9tawhmTt.Cdp.pwHABmot6wqAp23ABjXrtx6343aS5UjWKLC_WnlAajdW0dnhxp7dnrN.Dfi1y_PTDPidb9JrQrqBsyEvmC4UjG8khbdCTndI9rASG6hresNTuOmbkBRms2tiQBU6ySzf9ERq6L68ccIcoHidWQiUpSV.e5ET4U1Ey3j16TXam89XXuFeYQY8aPD7ACGCxHM96OH3C81SvyEXUnap1OmJooV0f4JDi5ugIKPZaLw.2TQFgUa7GOdyZVlMtiG2j0.s8Nupa6KHOgk7qceUrd9FwhF3_Qx463xaBLpID2IpvgZtMryx58diUZ4ErokRb3FJlMZMRAz1Omw7Y7bailpbW1kLK8Ikwmtkf2BS6bYOFL92ItR3jNvk1KJANdcI9.3u.CYWP1w_K_V3Sq1yY6Obt5p7nLTVOEs9LZRyqckW2Awwgt7JKdjXi2XFyN1ynzgQfzHyFpVP23cv_wTfCSh9XAp4g41VyUHDPYPscunr.g4Bt8romedGu9tS0fYrFgm1MGtkR7DwegXw_zZiCq0ElEV2VhWLmmuz3tlyHXerjA5Ipn3m7UYSHG1SWQ23BdD.YS8Q6O4e7MPZTlzYTB8_wTkEWjuqJHZ8jsfO3EyCvVoVGfkRy1VRhmUYYcq.jdtd1XBjmAPzsPLG.jQ4HfdsVxIkoLrUr5.QPKc8FiViwSQwM1pG.lsJizzW0n9pGf6cL36haVDVyHcRXdi2wQ2dKpJ_dfHj1gTfEpJoKeIKuFCRtHMcWFfuVjvgZfUAJPFDny12DnyfyOywbNxmlCPR53th5SYv7j7ijSDXQB1MV2ZsQ4mxjqnM2RqW0Ml37AiahhQAp_IwYqy.xsD5UiguVtSER_5LGhMLvFctD67.UiVr1b8ho2lBcUJvTFmp0Bi9SztdrCquRhLCtiQzavt67.YgWTk9eXjVeSjnqrg7tSf5aakh_v5BWy0zU61849WYYYjEDvqnLYdmct2S2.vQHbCw_McWZ.A6KX_727Bw4XM_6_E1NQratZHHyHLH5nnlWAjTgJAE97JR0992Y.uppFNM7ySD7NxvTLYqk2yBaBpckxbTDER_AycTfZ4Ej2EesNwK3A1amXOZiGGjOpwUcteZFU4iiyDG9kBKJDcT4mMAGyaPbalekSMQXvX0TfCWt.p8wPhrhjsr0lYr.vCJIUNC9VCg2Tehby5AekDi66tOEVGwcJiDkDzSKu2pZy7UTIlI0.s9kO5g2.eZts5TIlqQ1984sViDC5LbuAXfcdJPxVccpLBfXfG8u7IpGayRhG73L1CMYvwYX90VZbqDXAyQHcNj_wXsYGQdbU_g3aQR9U.yaST_PNhMxCf5Q6N9VcpRU6EFBx0OsoJZcF1euWmfVu5OmD1ys24o6ZIl8oq_D0FPW_epB0d.pRXtw5aY_mW0awjmxX_oxU39J00gYzm.K2Z5PO8eC0p7NaMWHId8ayY3lYF1nI3wD_N1FfYpKQB3irG7o2ZNDc9WO64KZmqP0IGS2uIh6fa6A9VcYX9wKeSd0ERjg7l85DL6WjYMlGgtYIZlbubSiTZfVlCR3yflB8CNC1zDuNpUs6PpR2qJIjaIhnLlTM1kEq9ewPRhfgpnJVBpqE0BrKXNmd_pEw_9uw8qItqsMC.NE3z2kBBHfKgj21oKGnuss6TYcFW2_nX2FmVgwpxZUicvouL8eAQx60.4K_rhrerGwQlZ5MoJkLhsi37ACNQM0nwXMrGE7iSxltdZb3wveYCgoIeOrDjg1XYe0Cb2ImqbSqkmsW1dJG35fRSVIxu8uRxtBGYvViRQCL55K4G0qWDzFqsDpOXHowzCwxfrq6hrZNHLV.4.Ubb.tMWyM9hlAlc8oH0iRohdidffMvdLmoiFg5od6mBbjgRXHKBHcEPjIOlT7qg3wjZASS83Xb6bHp30iAyqA8gjv.IkN_RfTOaLCZHL25CFBIYD3QuucxUA5Kc2wdaVpXClTb.7ZBUWBF1M6PDK.XFWkSlsPibXtBMzPtTAs5L5rvO07IQcmmfiKK3WymfK1qSpQ7YNVHsl7TcH.CYR4zRN7KYjbFDXJUMsIDPVIDBNYg37KqDP2khrCQ3u9EBAo9gOugdWR5NdK_Zv55r1HZJhaRpF8_BDboxwJL_ywSmSaJGlMGOdynX8xCLwRPpzP1Gnqk28iyYBw5lg38g",mdrd: "WMDSBqSThd1c0qD.vvvgSAIUZZFHhPveF5pn8LZDYj4-1739169829-1.2.1.1-uHcFw712jXNrXnTptd4ntv1tNkfD8WkSwc37IbIDAbGYDNCgFuN5uJFkE0CqbEJaQp.q_mwabcDvM9ncqtBAitKNvyBibxrYzal9TWZYcvHnd8l2vF5PctLISCEdDwPmLoIxWWphXY0rdCyoBuBKRrqB1gb.AQTR2wCNNsMjZgLNz_S_qsK_xfvrlzkV0DX4Ym1xOsXDg7qXnM8RkBM55NYOlsiVFg6clDriVjZtEE3k6HGeSjM6qZoti1KtlKmbXl9eQScmZN4FLVeiQVDr7tijv0fF7PXDouyzYZm_5VbEawWErFPfZ.mf1ywHdeRRp7.UcMJAbXfdUJBlSC07WIv0758pXw1Zqll.231hv8rdgshXIxA5C43GpDzlmhyeUuRw3szbPpCc1ZPFDxPdHvenYCROB7OboSdwArPJHIvFZb0jqWWo6JDKU_6irOBW1Pjtf.UE3Gf.v9WWwHcCBEy2tmK51iQYba_kFacAGYs2F0df2RotUxMbQ53E5EZ0fU273cEBaw_Xq9zI1IZv7_L2v2jFII399.cnGXW5uxPvdi_FhDUcQHET7k7KbVy_HIC3Vb26hrl_PWNXqmcq0safjotrT8HNQprgzV3Sqrol_9CaVd_.y6hBUNPf2Ve8JPIuWuP4lM5i_CjqU6ITkjdYwYQ8nohaLLFketRDJEcHaae8Ui.9Pjz2HremjWw.5EIutZQOC__lsbO2tVDvLyQdGufLVVY7W3kyQtzJ_ry1I0o04mrkYAEK4.e6V0r.ckXBOD2bxVFdBKroXCwFlU9hknmeETtY1sbKf9S8gkX6c31JH9QWDq62iF.lZJioztLeWpX.68N519_ztW0nG3MS89R3DkHTf1jeAE0z6MctKUB7aJTL41O1ls024eT_N5RXSd0CvieFlrxnJUbrh2PfVUbds3gdupFtOgHxy9UJk9NM.NOttXAr4QK.WsW4gTUJNubvXCKzhZaIjAqcEjjvMN2uh8cS1Rkxs8FR4KXUGA9nSLM629Hi7W5VfejUknTXkSJQTbV07yXIHPpJFWi0eq1IMQczDJ6_c2EpT0lxKcLHVptENX1LC15Hbq0_e44s8RWBWLKZqH4iSRNyMydWsfYuDpeTahpJok7tzaGPu6RgGLt2cStkSL90tvWAWTtYpR.nFv4IFBOtB2pylbC5Jt3wcChtS0ujcTVKtKjXpxZU4O_mLnEBFkGGbA82NXXn5eeXD84VDRIs3FsYOu01zQFUXS1OaUSSt7f7Rq7IGNvV2PR0BWdUbGTpZFmp.Ke.8NNH51oMQxp8JvOSE7FY33wxgFTYbcBhYSSrVvbA5UyVeDbnZxc20psIfFvzrrQal_yvY5SH7pWcgYXlm0DAn8eZu5yni1pxBviqUCVo7EsUZXqeDXRX5_YeAhCTHTrDM0FKw_IPye8l6wAftY8xpdGDdJeUWa6trg3_mJTkuTxLR2KtFnhOWMhSfx8UMBCtgq7ZxEsfxDjVeUTvGuEF4BvJy.KGb5NA.5JkTFkUYZAxtbnrKUiRqBdfZgJAQpKUDWpFrz9lHjFIhF62NLnoUP_4WeFj5YynJf37mc4qZth3Dwffxxc824WPSEldn9P.rHZwQ5UhykeZMkVzTB3C4r7aus7XZRavjwf7mlIcxgq.2dHtQHsMWs7rmuPAgqSZYRsdNrK707VzF6j4VO_P_OBtjSVUiygGFKJeexF1NtGw6Cv9spTaNxnZFj9.1t0IWeU.CEuS8l9I3LbGc1_kaM7.HZCv3jTIudu19cRCw8M2Bm4gBkxXlvlIY.QAG6s1Z159ulPeWLUwbTu_S0_pVJSVUORXNl.rm3yHKUY"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fa208b68380830';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\/5741938206?__cf_chl_rt_tk=9JW7DiJ_5e7BN0yZJr1d2.xJlwnVNQYzo4asXQ4uLQ8-1739169829-1.0.1.1-4CwCzEzv.WQ2moMy66RfFK085MjJnSz.0HlLi23Q3l4" + 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