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-724327964252.mit-edu.top",cType: 'managed',cRay: '90f8314a4c1c9c2e',cH: 'E0rz7mLeQW84gs3.nIbEgTtq.UVYt9HGYlwuoFN7TcE-1739149544-1.2.1.1-0Q3ttmqGZ58jWBckjw4pnIfvfcwzooaBgU9vxeihL7mN6FhnUQa_76noF3Tu1JkW',cUPMDTk: "\/post\/6023159874?__cf_chl_tk=rOXpuFZnatuOVqFGa1XYJHjjf9bXu7aYeq7ZxuQagxE-1739149544-1.0.1.1-e45pE2LRd84Dv6pGqJpyWLJ2._fOA7UsHzEuXOwjYE0",cFPWv: 'g',cITimeS: '1739149544',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/6023159874?__cf_chl_f_tk=rOXpuFZnatuOVqFGa1XYJHjjf9bXu7aYeq7ZxuQagxE-1739149544-1.0.1.1-e45pE2LRd84Dv6pGqJpyWLJ2._fOA7UsHzEuXOwjYE0",md: "1GsyH5IUMztGVFJJf0_xone.UYhOSlkzaNzH8NfdC8Y-1739149544-1.2.1.1-B6HC2lZYrlYtHNykxLDAW0UGoHRWWS6S2gl.hAskP1N6sgDwpN3epS9Bfy6J9_7Ts4YSVIt0Cul_6wCivHr_KfVazEL.xL4dtOjaeFPkSAsPcBlizpF4wuF_Fuk4tSd4f5e8_QytMOpeZ9TT18UeCFL84GrvP1.zCNco8nk2LieSNJpqhE37VdYbtdbD13hOm2LIVpioGycFVUGzavL2ey8_Tu9ZUQTyPKzk3I0YK9yMw_FtpVAASezEX6V_SbSWrEoRBluMc2_WFhxnaS3Wz7E7.olgn1azxu4IEglMH5IOI7YZQDi4HXlVIyLjUlyZnmlthjJWers1IxfHFLL5LoHgi5mghn3WK7IptDvUvYRLO2dWasHq6qiW3T2S7Xp_tSqKGRiFaDD6kPySQN9ZH4nahSb5MdzTelZiETzuff4.jC63VXAWG2i0vLeLKHDaY61L9pjmDamKdwnYvHoCXICp8cbRpqXPoWmwvZTcqJd_JjKTKxyTC_yMwDR94r9RuKlnrWuSrT0txyAq.07U4Fobx_t7jQCJ7pF8V7827WV4XLZSaSXU2lZ4_RZ7Hg2HXgHhVu0Hlpz_9qB847P5Zp7oyupAHbna01k2a_8FCFcRm.CGHP3JDV71xfYnJGM8jPA.__UBYXni3sAg9PVUEBw3GWVyMJ4.d.L0E8SdGU4z_Kb0FMiI3ukIwiXLlERobw5hsLKCAD4BY9I6Q5x5EU2UbHOOJV7HDbXXMxSN7WnoA.L_PC9rt4oy.Oror8B0qp__4fp8YCjrdu.vf1PooTC04H8XGs0RTBaMLWuWQCyCGqib1t7.KS5CqtHB5gbqvGj54jC7wNEw5dFMlk1Zh_8rMoX2v4RvzsmcKpKT7IT13Ps4nZi9cFboXcBkkanN9VMaDJVE8WGQqQ1gfXo4aQPLm7OAKQl1uHOR0KPTrQOd.WS_tL0R3IJ.aAq9188hv4NganQkLqU7do6QEdrcqBswml_xMMHcYMc.H5f00xEQIjZ9RURU3newzCr9Afx2J_B3MR74IHwGTAg1bYdoEBYejsfaDRFz_9yutZxMHTbSXM9p1sYnTIQ_WzjVXELWWuCwbrE6vvb4oeCQWjnEr_Y7OzaxW6SonOHFq5uMKHQopblUquYGN72CCjwX6QPfBV9hDQ3Q17sqaL22BPLetj.eUdvjkBblIz5sZA85w2MwZIPtYxOwSlZw.SBECMd0WNgA8uHm3EG6HjSQJjtAtSBKJTX4LqXdKlqWGbTxVOpr6w9NA7IIic1qoKDtI9PASEeYmamSdrwZjWpG2p43VQLXrK_JSs30Ca9lPrtDSANonqeYThpxpINE8dZFkcnX7mF8NvMcJijLbrly8WUSOC5.MJmKTjgpIqTfE0DcMhxAfw1.BzaTMX1wuEJwz1OpVOIsZjzeGAdf2qsH.7FeP9ZVysPo9jF4s6xJvRizsWTsYhpuAAlBrzrrI7NV.Vs4Po8EqKxwAO5LpL.6zJtN0FGMJXKYwlo9F7i491QlFfRR4pPypmIGhOo.iopwV7uby6OMfbeowz0NyOnPVibATxiDRSizabEBTOK0DmyNLG8AdhDZvSAI4pwFpE9Sfz_wV7X3R_T4oPkgFa4xVhxeexo1tCWmYQ4439VfdX9RvWv68ftfWzYasEu8t1WiPQCvCzs6E5P6Uz7yyzXCvyfcvuMvWFxlb_mytFWzSXzb9wuX.CkKnoKdykUqlgUuWc1uGK9_Sjko6PpawO3KIgOwwAfsN69hgIxUQAqdvI._K5an2sMz3OMYSwwvRdsLoCiQvW6_W_mYeiEdIrQ25P1JngNqKmYNwIR_VYXBAgo8LKZWCYMZxI5Lux_T9zvKINH6RE13Av7WFpBGYy7Qy1pD.lM0qIaXqTWSQ0DqbO9CCgMFR8wyBKcqCtTq4HTTh24Glbq2HVfWxXLj.L4IxCjOayBqdLndW5dkafHYeXxcvnXjtaTLY4IalO0qH4eNAc8GBc9ppra29MZPcMoUeRD0fb6detAWowno4WyHXM8743l_htuFbXzlVlEuGVszYUDK1kTkLduxsOSLtCVTBB_5fJ1F4GpY.xaGvFK11ubJxELGBG03JpplGRWnU3Njo_rd7WWs6914XShQ6ydtgx4nmcxWC1K2Y_GZSz2.xSn9PbKEX3NLzqRwq3G4yi7wcWfnaLm7LIgjqUKifta5NugqBfQbYAQBfK1Vg5lMzZdgNCk30eQDMAyTMHFJbaUVzI7j",mdrd: "JRTPzlMcq8d2.oTrCuiK0LpabQktH97Pil08N.0HnyU-1739149544-1.2.1.1-4U8n7KVfRjeQGtPEP4JbZbOH2_NEkxf7_jllCfYrLLXoHy0dw6pkSkRmK6v057ffZtLg0.Ybcel3jUZmTmtTig4vCDOapUYL7FWnBq6qVhVfqQza.VmM1viwypaQrvoDuc.YKlWgHZwDvbblNesgFUF3kyxwusQwvaqPKrW3TMGaSwIo8LqCbuk_vY8y3qEwGov8BvUg_1m_qO63jwFnJUOxzCXD3n7i4Yt9OklFGVVxevh8Ofyy9rSzCP73j8.KeIB3UH9Bp2dsita6h4gSGKQ8lzaoEifbmaGZ2RHOcjL3iLYM0pmD6u_EuYxKzW80CE9H0xEfQW6CzrCbsIgHBnhyDDlM.rTryXQ.u4MCWJP5iuyA5CD0ia5TwvndPXKQaH404nohCmu4cq1DBdkidgu7NjEdEBmlmgxlQHwo8Zyafc1KXH0V69NHjjxFhOmWXUqfk5gXNUXJdxB.GuKsijhfre2ofYfejXVf0UMfPWD2qF2eCCxitPQbTQ0e5MvQuWjn_ZLDvrGn5h6ksZOMsE4JWejgx8sckTLdDjuLRJPibebG5A7qdzcw4w1JYQ33BgMeTon4tKj0.nZBW74HGmR7ji91JWFpj7ovfV3PaHT12MRXRxmfRB_XXsf8P1XpSE8ixyiqLQnV1zkuVn7LXEgDYwLdmyWs2ualVH5MOTd_4vJDK4BIwVruR6Jk_Qe89fdIbpw530UyvQFPy14HPX9R8Ty.XrBolAPH2kZ7R6UrI1Bgy1D9AAL_OW8yYxKj5_oo63AYpKcz1N2peAY0BSapo1Gj5ibYXAxZFdKdfXaFBrWQ6uqhdx.sA1NK4PdJhX8hwQ3nrR6YI.adtjUCo5iE0YP3neVtQXtJ8zq3EU_sVHjOebDm.H_KG_In5lFc2EhjwEnY0aJygxFZH3ajmEWJgQ9xq_ghPNvOgpJbdcfcjP9893XL68ROXnOuCqgLjhIFoI7N6wykUnz8.cMAhp5YjMONYQUetBiniJHE9c035eW0QAYOOuwuLwU2LyVC9n2jlheyORLqhZqE..yUrLekxLXn21.cinLlDdEhouLQcrg7s7YP4U0CHYC.3J6uV0RWX68_w.nltjA3oLvYkQ5Mt5LycMQldkwBAnBPUpMXpvOrFXxlT7x7F5LFAsIM8NoLoYeAbs2_ZYq_CLRi7CaabJMi99vcEg8X13jmfp51RD0OmLWHVrj9UNjShO3L8O860sPpk8_SMlDxIRu5JwjLzrwHV3.96BrPCD5BS7qSZCM4VHutHNchWscak3Lh66YdD8E8wlXS77A.2ZvwVx3XsIecTkA_6yqAvJy9jB7_UkgI9I0PizR9hMeFw0tzdPTaAOAdG6K3FgBGMiMN86MtuVQCzquBdpCcLkRl3AjhZmUfLK2i9ME7fyqb_ssyCFlg17Evpl.L2NPeSw7.zK0J_wXGYNiGf86eHvZuJRDMHjNfAaNcW7jGsvPYsi3G9LjDymX2PhCVPTYh7UUOP95xuc1RjUTNtV4CZqf79XZomFRCQM71njTDfOpD7erenbNeuxIUQIqHLf13YWNRnZ6Us7abvbMuh0Q3OGYfFNrrh0BKRDTGqJPexyFLshTuaG_xTwbZuBU4mmYSRLUnSkC_A1HfYfnfhI.fbpnFOnTszXqw6uKMnF5hSZkvSM8DszNFfCNh.yzU_j0av2arUhtjJgLGNh4p16E7GWcbRz9DIm2os_ig3uXfdCyN93_o6OzmQCHh2y2bqLVx8acnJk.elRXoGSY0GTFeU58HbXlopnqGTKb2pngjrMksntgQpdPXFDffnzqIpdlm46JNWMpgl5e7FvPA.kNJXXeF4Nw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f8314a4c1c9c2e';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\/6023159874?__cf_chl_rt_tk=rOXpuFZnatuOVqFGa1XYJHjjf9bXu7aYeq7ZxuQagxE-1739149544-1.0.1.1-e45pE2LRd84Dv6pGqJpyWLJ2._fOA7UsHzEuXOwjYE0" + 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
