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-167321157255.mit-edu.top",cType: 'managed',cRay: '90f7c58abad4c963',cH: 'm1RHVvHvYJlmqc6pei.JCL6zYTGzwviY6HPg7S2c5fM-1739145130-1.2.1.1-jtviQ4i.thnK2cdrJqzZZ0y20b8v6U1g4xCeRB0sB3oJdwnOFKDwKhzkw3bbsyxy',cUPMDTk: "\/post\/0537294618?__cf_chl_tk=40Z6uD8spv0jkmsAypfggC3J0dPFhInO3luEDbbr4b0-1739145130-1.0.1.1-1hHVmdsL4uW18l8446POF7hDVirC7Wwi3UYER9kvXRM",cFPWv: 'g',cITimeS: '1739145130',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0537294618?__cf_chl_f_tk=40Z6uD8spv0jkmsAypfggC3J0dPFhInO3luEDbbr4b0-1739145130-1.0.1.1-1hHVmdsL4uW18l8446POF7hDVirC7Wwi3UYER9kvXRM",md: "J3vtV01oZHi7EJnhINm7OhiBuNu_2a_3O_aK4REhmFc-1739145130-1.2.1.1-DwXlSzPMXI4l6YfsX6dJvwbsBn8by90zSnMMusABWu27Vo2btNChzRUzIMU3zG9TnPprKDXU6LncsaN4CsKumz6PgTVECcEg4OvTVY4pRvGeqVjfT19zeywp_MoooIoEsvRrZvZkz_SxRQ0Y6k0FKcqf1c.sfLeSt6pkK75jf5prWqe8JNEhVvcCL7dCAn0I6mnqzMfBU1BI08BzQj9cVnn3mYPIZFFWVMP0au48u4DuskfQ7U3_mDSc4S.wQwizn6jiwlPTm0z4w.SNsswAa2cELDlNnfCZPGSkzwhaKD119s.9MFGMnIicKHlBkPWNQFzK5mzVWkoPOpsS4jZ7lbHdxotHB5qgCkoSgDUYEnGTCO8gwQLHrjyv1gdUM8LtrMthFxkBtR3dWkqGyHRLgcPa5ydQIp0G4mfnaxCeUUUjHYtG4pohRbIplN3JCp7Ko2jvxQIwjSpzVNaMdZD83FBWn1T4Zk.g_SxendcsFXscX5FF0z2W8l2etJxXq91pwLZ3onm_Eze32rAlKXNzIgAfMLe6mfJJUv0T1jn007MKQqRGhVsN0rg4J.HP9Pp3BObJO5Nd1JIB1NxagXsag76Nxojrm1YsM1aHRXC7HZccQgLnpCm.goUak4w8nHSue18GHdmLdpaqvqutVqY0i_AIIDs5kxZ9zqfb36BefZvVqroEfo6tEzlLuh49cwN8vPa_F1iwX0mrbIsgh03_2.sMlCxXM.TllhMDwPS4jd_a_RSd63hzwXP5bhe0HR87GwI1nwoBF1ieIqIc.SyAgQA1ExeV1cL6bDUhIg4wN4d8ZTGv.Bz7BHGkkQVkPKYjTzisVSwPopKUQSI.X8VHtEKqHJ.Cq4fYtw.GRy5eN6VmG9z_xUPjfLKhchRcAkXyWgpTfMpAd8QxVxbxN8n1TdZUY_6SHB.JKfyILhuODWVLKa5eoQYsClHCuo9wwtvx6nZimbPOHXpQO7OF1XhX0803vOCHMcaulxGr20RXcs10nRkv5PhVYZtBLEEKU5zscYBG7w0GjhduJCqNASk9Q0E_lsoEmpeNHcjQY.fY_kkCOPbDdtIzsIqycZ2upwpNJWYartdH64RoyMFBaM9X20jGS.RFv6RfOaN451BrNa22DF_0727OZAS.FkpkkH_8bNXjemzSLQA3PGYGQtgom2v6GBPNGoSfUdB7fFJ4y_gwBiZasC7UqqzwaXI.eIuf3.MSxXXnKVcg1ntcckCamYh6ZOXNZ_f6Y37Qba6Vwqz5nTlXOuUYZ8_hsGCQSJg5xwuM2sQeK5uJz2OtfmU.8Og.Kt0RhuQoj5Mv409ikSVcSXTQIiy2NirPyFiwWIUfQ_O_Jhi3tDqTNQ6VBrdaJwTKSz0_QiDBtJxo5sxrF4vypR5KQb2wmwNfYxwTLa1M6wWqHxR0y8YfLoSnFODNSUoxI8iL7wv5ffY3V68owJ2gipwMHLQLUBxujPGFBTeVuF1dJZaCJxL.r8Ja_x1xoZOdfwPXWPiC6ox16ArFN27zTk52dPeTW4G3pmGCZqqATBl9f2FuNOSEjY3l8UYKFA4AXGzkAcZngX8PRB7GK5CmIf_gBxyhj_cenTxk9cG4bdg3hGk23idi5q9sAuicsShubn2s1KC7Upr8sTd93Bkvy8q27C0cmwNB7rSSPcuc.KVPBeLzskAjk3Qr0FCNNZkmP9Pq2o0eSGDNQlRyy8VjV9yEPJMM1igrQzVlJgX9y1qgg3p.4L0HpChY9S5J.Pvx9PclQZPEEK_lE5SIBDnd5ZsGzzX70bzrOKnSryZh2mADaTrb.ITrQcO7_ZWEUr5gGqC4Vq809h82g0PKADpY2P69DpWQ0Ki9awdvmA8mb8ZFDceNWqoLWcmA72lr_aipcku9_JijPOsoz2TOj.vM38HH.yKuJeSzXfbzhpFqTF.pJnGI0eSnd1B_9LKgnGGy76ygj13W4kohU.JeyX_HZ.zHumgrNuKSjfTQEKKkbWgxfon8rbGZF4krJT5nVXFs2BIYvyzb7BqPTUwygt8h473LFDV96ZgHJnd7tUNK3jcxxL7Zc96.vgMuEg7C_fIYd_cpsuTsYervEwDAL1Ay2jgbSvFQxtxsnVKy1RJhDa_DMefdUTqh5VkTmIWWyli5KtMjFYRPKikcb9UkPAKTmjUWdqw4H4QY7fHdxQ8InMzMfXvtAVpjxCWN57GHCydko2SQL49D2.OEjWg5vZbruAHYBk1mpgiFsPfG.Kos",mdrd: "Tubhh7xGNbMnC290VIGa1fY5D3rMSdhHFiY6MgVBv40-1739145130-1.2.1.1-yiwwVKObVgBUop7h0h6X_vq7GndVoQRzsP8HEL_YujsQK1bU2KqBx2nUakLxOeyMmkf03aiyFqD_4q2gwSIJVIrFbl8iti37LfM28crSLt6aipI4G5cbijslr3S2EifRPDdzkaKPTRkn2XDeffZdGk.oudvSeODxs.CfueM_njjl5RE8DGB06coki10PVnL6cqHeg3apQoXpCEVeJNL0DK_wqP0WnO7bCiXG.UnHuaFHId16.t2H2Ir8D0BbZZWmwRpkgPTVa348s_XnSa6PAHG1P5AxQSv2dsm80H.Ur6ExJMB.q9LsAnxNpAe6i9OeKAoE8Xv8yE6VIRG1WLc7_gaICSqKdVJqsOxYaY5gtrsvvDQUCuEelSC2ARUTgiORsNhqr3TGyyt6Hze34LzvDj7dJU2J3hni.1C8YOYOxxRkSfpnQg.IyQW_euo2PmMlrcOcu0w8ZJI9D37iEv2pf38bBvGoZuBt_6yawd2Opu2XG7xxPrgjFWGNBp4WvQ1JjHntMM2_XMK0n1kFWJQYvpyARly8rpI5TpZ1zRMnmV1Trgihko6Wg.MJ1XEjl3XuENJ6i26wGl1ujRUJFK1Z4Sn8upt6NXrgZFAXR4IQMKVoeG5p8ekhSaiQw3HiNZ9hMBOM4wr2G.qba3hA7r1rxTShx5wYdHuvliDCZs5wu6FlOAmdqx7LpKmQU7cLCGnz4sCJzCX4DNHeLGiD5bbdlu9PpzSy2I13q_6KaZDxsnFZ2Q7w8hm9BLkSLwoDmtGv7i8IxH5VRvdTNT02mnTO5UqJiAQpT6v6lOhYTPfMPWAVHJSOq74dk3FURGCZxi4SWpXrZPa2X8hNnj_3ZiS9ZKvyOt8tBG8Bhghm.25dv9nKZfXoRY.2_SKvBsleZKmKlofRpg_kbE1H4Q6WlHpeUEYt7XdwWMD.RX47RiNqYDtvIv1vtORUziBERUfWCfxjCljfPSgM8Hc5on5xP9I_EmjOGhE736KK7IJxzCjw24ykPNONgg5QPvpuuNYXzWhvFoFIXF0drE5E7DNPZTCuO1wjwMbaHblvbo5gNM7g24ao46WN32QxrzGJE85d8OBJGkN7eGp.mrjyMWDwN7vGpxtjZWAKwXN9qgQizod09CJWbEbhzofMriq6sHicgdK1HMV1Cw1vWqy_1t70MsY3lELhi4032iaRhPVLrKLf.jO.y4.k8N9e90pS.g8YfNk3UFr8_mt30GPRC7DtdQAIKrpVtLXHeArkiT0dqE9I6JxJ3NIAGq5jcjH_ALR8C8G8YGVfsgecsfdv.qfAyxJy8SPg5gORpoJZvxDllX0lOhj8alVwhY4ZpghXvfWJjC6NCPGAHsMDCYhs59xO6osAB0ORQoSKhQhA6rhdwNSYeZgW75ZO3VKaAtRDzKV7aQZBGxXIUiFX2h.AWQra5CofkdeEYGnmRQeAre_r4wF.IBuMDMYPtrbpPz_h42ZCgz4LddMXERx_y0VIoU6mZC2gJ0rjlE93XOnbo0_t6GR0KtYIHqTd.OfUtv1VfVWaY_T_kjxyvDV56f.4RCVeiJK9rUnY74pu66il9x.rei6hmMA4k._5eRgA.clXBmsm5JgLmjDgQYW46gnFwCih3k7mT9kr1NupvX7gXffESFLyr0iFEtJNPZMUEZN5RDP3xUaTaPnUjtLQIAfirSmLA7_lsRQqDtTpSVQaCQhRqIc4vmf3dYrMilYJgTEynJf0y55YpLmDhNfiAb3sOEdpS6O1IcCFYzbbeR4EnhjA6_VP2fLK2Z8R8ZKc5aTgoSDmxjhmhLm9e4Gm0WqculiOEc7v0Ec8hAVLs6Y8r9OlLeEmG.Q"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7c58abad4c963';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\/0537294618?__cf_chl_rt_tk=40Z6uD8spv0jkmsAypfggC3J0dPFhInO3luEDbbr4b0-1739145130-1.0.1.1-1hHVmdsL4uW18l8446POF7hDVirC7Wwi3UYER9kvXRM" + 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