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-139343040021.mit-edu.top",cType: 'managed',cRay: '90f3d05cccc72024',cH: 'qmKQpvweVzM4xjOM9XO6mB5sWc6K_OZDsA1iGAbRTCg-1739103630-1.2.1.1-07i.Re7lxSgjwtFN8axVK3CN_wvjY7XEOJ4d7VqKQwrpeLQgpHsX6hN6RgCk0E21',cUPMDTk: "\/post\/9502673814?__cf_chl_tk=j1gHegGkMOJeRVF4oqO1Ibtu70AdNCgsMJNfBbLwJ8c-1739103630-1.0.1.1-x6GCrL9Qknty1Ojm_Ele.T3L2thyljpac_MpAD57M0A",cFPWv: 'g',cITimeS: '1739103630',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/9502673814?__cf_chl_f_tk=j1gHegGkMOJeRVF4oqO1Ibtu70AdNCgsMJNfBbLwJ8c-1739103630-1.0.1.1-x6GCrL9Qknty1Ojm_Ele.T3L2thyljpac_MpAD57M0A",md: "cjZxG2DLZ0_J2adGYtmIUmpVRqWg6tdbWpNEdshSwjM-1739103630-1.2.1.1-_9B2czjRrKAwUuZEOgnDvv20pfYGcAshbUWhI8_2htuRCTXgzNIF3Oyh2Ydh3dRZai7Xl4951bgbzEvM_K0zFQZnmeRk9L9oi0hCBFjrvNO6L66_vDTY_8zDeaW2TDUwCGybr1L5FVjLWSgKhUer515jeEouXtJv6Nhj2P1nA.DhCMjYs7lx3wEuulepC6rJCtkgjBHuGC3y6XAxNTzF73iyBZX9C_FMJ6K5OT9M3QgxGeXQSTOnA.PR1XB0oZQkPYCQ.IbuvQrFWMoH8rkoUidjfrxXHhZhbSRl87ftSCAYoYJkGlln0fk0vN917tTZlft1FCJRqELve6X.102vmZ.eC0ceoJcA9W_aBtevggCYmIAJFgv_Ldsgec91mRFNd_DYJoyCts9S54Lkd.j6xykdm5NiczfqqGQybm4hsTyNqUERsFHDR2Tmlo.KX6DwViSmCx.3LYqC23jrv71k4olY_dAJ3IwDxbt5eJp_VzHt1KVTj4V4cmCNwAOCi.Ox6LVbf1FpBq7CYMql6emzO0c4pxLCuNesKgeMLLgO.XX5vTMtnfH9wvrk_R5cefHc6ACUByoEMjMpuxV_9XOL_wUmHBuuwE0CHp04AA2akwx5PqwaqAngXOdBJ0ZpnlucXOOf84AaLsjRdygYOVpcpXDyuiryJHFdiPygcxx6E0Gql8yZJDjKR8vT8fRhVuJWkGh9lP4_s8H3u0GyTEBJtyolwxVlBkxOhk097vvrAWHWELrc65wonl_XzCV78fW97klN2FUU0xs6j11HnLU31xNrTKCP9bXZrsJ5h26TYzDnGcU9ICtll8AXQgVUQ7Vb9as_IdfuWcUg.WjyxTGQdxSrGyh5LafFJEOWTCnZaOFC9EqrA1HrGZ1YQ3AiLW0t9nwInZq.Wv08HsGJ3kyL268FsC7wRY17_cYas72_g6ikkZLbojEUtJvVrFOA.e44DqY7H9Lf4l15zFd.Xv2qP80j.2wcAYBvteob_8vao3iyF8ZQ75mQNDvnSBvscsm1BXtX6fCrf40zYBthG5Co7dqlt38H_VjlomrMajGs935rzP1hvfrp5CvkPam_fRYSgxAsKdh3D0jwEgcWsUda7Jl4TrasybKUlhnf5TpgLqd6Zo1wJn7aSkIWDtKZXNON7lHuvNwuUYPD1PlXKe7.NFGf.DWWdsEW0nupO0i1FzjndemXPfeDOsai9d5iZgAGcuKOMe2wE_leTqNCDsVPDfteXUCjlnjqJgOKmn4D21pi_ro3eV_JYYo6KiIo7GfHhV9rQ4clCoXbIYm8afeOyYJZz8edhn46mjecejcaQMjQl5i98DBAMikMBFpiBWjhP4XolmilTlr92JoMYz.6cN15wBBG40F3BU5o2opcESVfTjLAopumMPNZQnBj2b8PCjlAsvYBLPjt252Aj7i8jwg256BJCBhd7A6cPnrHbVgM5U6Rs2bZckEfQbYYF1iUpacUaw0aPtix48iFF8BAZHmSzzTD5epngjEcJMslqIlbDNVsfPNWYyt4vXKZUuGeZzVkvW44CXgr6v_p.06uU3AhGTFcie8Ku5RyFHTOqaT0zmOujaII7fLJb1UIlm4XtKlEohczIfghEO_acZQZbxq0Gh5_6yWPOTVks50nHlsOHur.FJkEV7YZV0KCycDwrgjxgsOuHudoyD.Q4E0gV5KDlHOIoOgUIkSrJ.5idAPxOpTwRR8xoRGSiwZ9hjzYyMRMjYHFVo9___HzeSOEZZI2Sfgem9f.vfURk26o24UfsqfcdTFpBaIIYd8Bea2OsDkwVBjLOVJ8xEF_ddvXpz5XqkotFZjwgQB64rbm9Wnc5iicAJJVb9zF7kSSrcXJjYkOQRjcJ1rg50DIQJNliMsEMRk4ctcb3QM9mFBWhCIRB3TxgpN.b.Kgm4tV2IU5SGP.Z1yfiARC9F74NPkUm4t2nu48O.T2.k76EwxQzZBF_T23hfO2aL68dLz0a_cCM.wrNkdeOgmIW11Cj3S_Rb5NZUmGV2P6eVIipxXaZR1mULtvnR3Lxr0FqYvI.EKl8KqAoZVvkwdDAKDCiEhvGCPPs4.9YIoWnDsY6os1GF.QRwgaBXKrOW9S1_4mor.tw5fSeZGGvVxMAd3eJIF.4IDL_0tFVpGecu1C_nZ3L5OkKKoNbjDDHAfDdbKggWaKoxMOoUtb3WO2SEkmSPPcBXWw00guX2QYij5gk30qN4wXAeFDm2zPXqPYi7NdYgVY",mdrd: "jVWgEZS8cIDjtaGgwGytkqJuaqvPG7JpZRTNjiBHF3w-1739103630-1.2.1.1-tb3uWcy1cSs7EKq7oIqEFwhvXZ00McTz.HMTR5OzzqGLw.5T8s9ny1BrkWB.F2DvavJv32RdRqQ7B_hKvJ0CyLZNhr1522eT4b0bmHavI07iZQ_IYo7r05J.ofRTdXdFI2RSPgomY1KmGmAw.xNGO5etjxoskmiiY5CsZgksR25Q1secvBIpt44JSe6Skrq5NVtl4c4GPVQ6XudRt5ZQn4Sfgp7FJNijwqhH_RNNmkn8TI7mu7mHzKiboJJ.0IfKq8uKWY2wY5VI9G.82rtoOiCnb1Kxp0AHvINCwZtpD.I6YXTUmCq9JiL82cL_UDDiCo7vgUANlpuzy9nEBnvny1lXLyk.1FSYjkxz10ndfB0Ifdnp3UtF6vw3xpOhkD4nlad4Rq.Xpvv3_PaeuE.NgUMC7Kq5tEHVifXEbT9aS1bLffQsD.m_RTxllmYvGeRu_xQ10uJAkNWyLEIGzEANfUSOyk2ikybJSjVr1CmnGUTJWSTDmq0qJfWssi_EynJQdaJ97FQ9ohdcShbeRETVwcA_svlOPOHEaUFz3CRL.pzCl601xwUeV785TzcHnt1y.ghwt.MOdjUFPcTw6geUj8cUuAfqyr6Yzt49M4viL6PyPuWHI629JHG0Gjq87I3yzaG.TWu38fi55qu8zj8bQL1SmOOnP89xZ7MZ340mx6ZVCpgeYH_AOapt5xS9X_U_2PBJOyCAENq6OGXB2e2kdc5lJMPwRQ50Dxp.Gp1mSLZt_NowAPSvIp4b96AnAF.s3jLbmFcz56aSolSbJEqlROn7_HXUrEpM0jqTO9H9flDNGfZ1ZSVFxqiWy2DyW2jEo1HA01BimBkuXtIDpia7RdDBUM.dto_Yc67jGhQG1CsKz_ZYyIRGjfXfRA6KJPruLzRTvWQlkp3sG80jv4Q3lB23Zhee4_KyFv6x6qcBUt.RK32jxYpF14GAaoX23uKRY7sKlqDYGVPiFl6l.vZocb4ynk3TF21EWICi84Da9c_Wfh.2vXM6jTKW8O8Yz.xR70h9obtpD9349BZGdqtd_O0acQClkYIF05lbYQsGrHvKclx4llFUgV9HI6nCi6JWfQH0u9USWSOntDbY.uQp5cjRDtUj2oaDLUvecGa4YIajpkUVaqzMefGMT61.3YEQsCl8A19jB7DJjjT9UscrTerHroPPjSlb_k4H7F1DVW0uQDR9MFkQqEvGYjBxu2LX8akESp4E9Xh5CkU0DlMogueqlLUwFF5i4qwvufNorR3choIyyZdaLTc9WgTHThX1QKgtZgyUoU2xpoeammGPWYqoULTon7vJHNvkob7hp.y8TMQJhq3I9z63tmx8O91OQGwdTpYRnXbfICPbe.QeVJiO3PmGVMfAO6C9lWfdlrJHuCWg9rzS5RYGo2_sGu5j5qL1bcOAcbcqExWRZXkH4FSGlhJvaeFt42uHI_nxXRziHaTJIua5rzpPyPad6nFaRvmWbCWBweFAlj31f7SVp6D20_TGphEf_y9M7OcbMQerw55A9Vu4myjN4KHGmFAN6c4NUDXam_.AXJ30JeLujfIFaVyVQaf3SNRdgnGJRHO3ec8MKUvthYkNX2I5dcq0Ff8ByoM7N5acFttU5tdWnsNYxpTnXYkAWLsjlGlvCiEUatk3.R4bxrC6FWJIkFf65BqCAPHr5RH_KYzWoZTjRcsZXw9kDRRvf.sxBkTIljE7c5L_fGEXbcqabTNzZ2nD63OYKizUT3NGVbA5Kk8tX3xmwOsgbjM7LWdwxV6MgJw3CqvguPJNt8Ki9Cz7QQhgN5CHQ2wL9dFtU26PX4Is2Q"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3d05cccc72024';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\/9502673814?__cf_chl_rt_tk=j1gHegGkMOJeRVF4oqO1Ibtu70AdNCgsMJNfBbLwJ8c-1739103630-1.0.1.1-x6GCrL9Qknty1Ojm_Ele.T3L2thyljpac_MpAD57M0A" + 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