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="360"></head><body><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-293916656362.mit-edu.top",cType: 'managed',cRay: '94b149e829f75ae1',cH: 'RQ_rVXiUitVzglozBt_D46X7G9_RgyxiubwYy6F3TEk-1749143481-1.2.1.1-bGbtwuu3yZ3b30ZPOYep2R8P4aIKc.uvRzgP2MOFo434NznLDfxyFE83ydg0NHt5',cUPMDTk: "\/post\/3892517640?__cf_chl_tk=bqrmdo7QPd5eI7kNjw9GbxzRrGptZ7D2gPMnALPZAyY-1749143481-1.0.1.1-YEeFsHCxsjd4oDeiEa.q0KAGm9ldvSdGHL.h3Q1gOS0",cFPWv: 'b',cITimeS: '1749143481',cTplC: 0,cTplV: 5,cTplB: 'cf',fa: "\/post\/3892517640?__cf_chl_f_tk=bqrmdo7QPd5eI7kNjw9GbxzRrGptZ7D2gPMnALPZAyY-1749143481-1.0.1.1-YEeFsHCxsjd4oDeiEa.q0KAGm9ldvSdGHL.h3Q1gOS0",md: "YDhoB29.ig1r9jFETvPwshYTV51JUs3dUaKh8KhPNs4-1749143481-1.2.1.1-X0nZG_pKElxjv4zRr.wGQdyXyqO4runE5osy3KIBZsv.M.SCLfV55wSbfLxskdpszPTZSaWzS64_dRyQgvEKmdolGv.olTZ0MSP4g.ksql9vet.HYY1hXzDS4q2U31_OKEMcFihG52hAX1Wwpe96qHRrRrI_jO5AeY6FseANlw8mD7jk7.zvw.i5t4JZnefibOQN2xG_4fCfTpPcZWQcrRe9GCcUrSexQzJk70v38ZFKGt_2wkhlifmif2Ogufl4bjVD5ah6HcocZT9ITgZEaFd8j.dYTtUw1W.zjkayUEclfKTQiFtgcgpRxA5ZUZXgdhJcu5vZtxQoFepkkQwQVSH3CwIqQKe5woQn.zoBuxdixpZRsl8HkSJw4Ta_OqVOp7Txq2SGLPR1jCLgGb3gBtO1VI.qH5xyKOtNb.p3ZPtifLGq_dBdm700IUKIXt.2HtA.UYV2iQMyis9nFL2ttID.5iEboCGr9OkzngxgpPkhCE7AK575MllrSV8pz_lQ_v13zVpzC4wLZmWxcPZOpISjkUUwWUMGgE8z17PruzCRtPysfIiVctn419ectpf9aQalW0wStwkcN8WG2V8pXnU_XorrV4MsLJYc6dUY__FeDPj0JnMPwc2Blthc2ShNL5.GRIlPHHiEAR_.tMBhPNungZOuqwrgEDc0bIQ2y2zzypHqDiSz1h162S0cxj0l77fR8X9ii_5vWVyRoWIxnOd.pOwxJifDV6jYegBmEVNhVZog7TI_zIbNmDbLy9U05Y9a0smLxZW8GgiZEKjG_4BAFpif3ftMgj1mmXyicKmv3n3Pf9lrgwjV2mPqk2ptYJrzg.RWTq15xnphO6vKwQ",mdrd: "bfcLY.g9LTN.sa.jAzTRq56DAWAq_O14oAK0yYqkCFM-1749143481-1.2.1.1-CxVSXUNGSO6OU1pyvgem0q8DVWpZsDDuEfxslW8sEO923.mT24AJfBQfptuwnMsU4RawX8aKqwgIbtEi4NVRAeuJXEVUgLXRb25sBtJDkTKwGJ8ofZQ8hGP1N0TK7AEzxSzanZrH7qzOFNNEmboyXCq_FOqCEqeUV.srYnJVDdFNbMx94I0XMLRD947rr.RR.mYhnKC14lhmdT.XS6.FIv2.tuID.zr1fcX.MTBAdCyEFcyluOMm8iusNU2mKPAWMYD135Lv1YVliFx06K50IigK8BhhRK.p_J9T1dLrz2ACd4S8_YUenGSV68NutH4QdyiMAZti27HHiBjF284lNTMjMlLywGk_GLJiYPrcwnPX9jgZVGpDOhgJONLn7B0miJ180UPrvdD9TlQl2NY9kQ8N.ar5MqxCoO6XNfblyK8aU91dA3hLW1IiPInKqrdSYhGC8zrCeBR5Iql39eJj0EP5hVDSAFRdAgWqhtWQ.B_P54Zbl5taQ7jddDdT35pkv79kQPLhWXH1Lt4zHti6fGavd0fze8lHPVnxHAdWMp8iZnk7Aq4kp7FMLmFqpwdSqBnxVv5oTSJz3Q3SCK30rMxuxK5_3eTX5zM.7RgpELc8MhSwD0WL5KNCsGRfA9T05QqJfLBHFPxVLYLKGJCOkQdNN1xN9DgSK7PSlX7DUgMi497d.NX0aoxvkTmkS25Ez7GaiuvZDQbUObW8lvm.hdTGMchnf16N9_lHTx.DISAOV_hi.SCqHABVZQfQFLMJONJs8pwhtgr4rGGYFu9KU0wbygSW9rSpu2spYdqcsfIQTuUV7dn7EYQKdUOdFk8MHZlLWMdyDfpYp2ApdeQSoLYUkjK55UsQuV7OwgFjLo0Y4ec_m0n2p6B4d3R._7VzMin8I2SRMFyoTEMXRGBlsQvFNm__uqzS1r1j2A0NvUPl7jmLYWwlRYdoMOLRwYJmNEiNXwaJJG.FI.HuCjLe4VujuNSv7aarZs080mBHLEibgzpQVcPe7g9E0lVNyjRGhZC0i3IwDj1VXq8fcEyVWzU2agqLGeCMtoI5NM3o84841p8kEb5O6cK6rI0opUUETsUviSNGOMwyQ2ngf_llq.zIhy4sVb0RoUXjZdsPe.Ojyy0bDcKBR.P9NOpzDwoQusjZZdh8oyxH0xLxzoBxFbGu5dBeh5HO52.LXXYYelMFsmPuNF27tQVX85r67QyBHd3roSJzOG.AItaDCc2b3KYJ8go5wGG2iTi3fOIa7xGiCtJ9OS9F13d1praX0HMvWf1T.qh66Woumcnn_x8ubbdstFPYxLr27Mc2Gh5ad9J9G7uJqlpyl8kDYtdfDrFpVWWoq2D0n3EHC1ZJm242vCwhXR.ARSCkCHj0JSueQuth5.HmEkDRShrhW5VVzZToYV6Hvui9j0QVqEGbKzciix5ugH4HPfky9wpNqwkMjw8k4XTOhW1SEUXCb__kXTC4xfkEatmFFFO5CMCMd6D6dDjrwFhfXH2M8GYLEHtAsKsakb9_fTYAb4_oPMHNSs2FQo3IzIgNa49rLfw5EulouN0cXMAg._9qjo8SpBSVbfnooxiA0YKq3wVWhWPAmkGNsrYMamfUYZC0xd7Jw25i1KGa3vSieGBwJBpaJLjfy_PL6TKrRruTRTehF6FmuKkBefS1SG4Nq_uG25erLENamCawME2dzU1u3v1rGnPHSkQngRBwIJ29JfqxafhdY5t4DK71NpgdWk8muqdn52q2UzpIMzWCyOkXdsX1Fzd51BR63r7RjLdw3WFoc9rleVk76Vx5sqaR19yDE4yJvHz7PstcFkLlTJ.n0VvqqdoIYN0TTkjrxglrVfGYWmjr9pOKqxl7TGmym2SVZPCdy1vVopPbJlFRnRbUTbOuPpIBDcxf1ls2LvvhnRAm5vuKj85a"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=94b149e829f75ae1';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\/3892517640?__cf_chl_rt_tk=bqrmdo7QPd5eI7kNjw9GbxzRrGptZ7D2gPMnALPZAyY-1749143481-1.0.1.1-YEeFsHCxsjd4oDeiEa.q0KAGm9ldvSdGHL.h3Q1gOS0" + 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
