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-221541704020.mit-edu.top",cType: 'managed',cRay: '90f3625c19df0832',cH: 'dhFvRzbMMDY_1vBavIni8SgeihVyVzjfDI2r7hIKSt4-1739099125-1.2.1.1-DfuouO6NGV.91JMFnBDDMtBweY4TbjO_mPjPzmbRHIBcEldkaEsRieEeq1b16u46',cUPMDTk: "\/post\/1924763085?__cf_chl_tk=Pjsp2BLPsY2wOWyajonbn2jj7hoE2KkLmHqL2er09zM-1739099125-1.0.1.1-i1OpDiWV7_sRkU91PL9BxnFE0GTsdKcp9JatK_rs3hQ",cFPWv: 'g',cITimeS: '1739099125',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1924763085?__cf_chl_f_tk=Pjsp2BLPsY2wOWyajonbn2jj7hoE2KkLmHqL2er09zM-1739099125-1.0.1.1-i1OpDiWV7_sRkU91PL9BxnFE0GTsdKcp9JatK_rs3hQ",md: "l3H81Yz_ZCZUDQB1Bsa1sa5xIjcLbi1yl_tQUA1H588-1739099125-1.2.1.1-7NFhkcbsT7CF8erqTbtbfnwuCLIAwOELcAyhyBA2FIhr99OyHzpbbSg1dCP4Qclij6xbU2M.eSMsly2lk5q4IP.tY58x2AiP0AA8jbKcdC.ThCVrbsq3Pd21GfQcT275mNTcAQ3m81s2l1s2VHb_Q.ABkwmBnzXx0SF7zMhwPj4bgxjdGxnm3ICtqzskAjrpRmrD3mHUpMKxlKv8jQX_.pd2Kxx1YqWY0Ik.yYxcU1UtW7.g3hU7mgp9YEmLSrfshJDtwomidY4a1cbiBPNvw0w5wJvez..iRNMzrK647AQQKa3Z3MxlI95xlve3ghA8cPpz_Nby3Agd6vBh_Hw.TLX55avL8FO0WdjIY8Hcfi253oj9FEaSBjnwoSsw7MfzKwcKmcOTB1wpH6udJC3My9r.aC3vWOwTj8gwDdlY2Vd1HezfqinB55ltW8qzEi4xqPeL7rwk0shNwquhFjRK16mkIbnL27VXzYKVtvCbmniDaMd6W_Q6FMgjO2tsuahPFf9dSFyWn7ka9sNEvi_Pqv3rC9zGtUSAz1PXBlZBooQz4hVN35IFScRyyp7LSwxLGM0X_SXRSkfyBeieZMg3Sb304F0i0bw2OUEWaO7osvPER.6aUWjz1jGEgV.xkIbGBurtabak_sj_K952SNdnK5IXrBeWpmzd6kJzVWKqRcNBK_rJH_oRYRn_njqJUuB6f7bZI.2P._KRjBiMZopV.vdYcUIhLRSTVoQiZ33wILPEZxKPU5MmkLX4CfuJfBYrDkqlOh75kOzgvI5wWmhQWTeo.keXPkQgf5PADm4ZXFTTg.0R624BKhRAYa4gNumYadQ3skKYrqgaTgWuyBeReFAs4IPg.CcxZDqFdwRSy4teLjbmDA9oI1.uW_J2eInUdugu5IOePU7iiTrRtgTty_PE1pCi4twBq2pI9j.x.ABasMeCMyQvktapeWs4TQ822fsC_o2LW0shQHeb3AxhF.eFywVqc60EpnpePPAAczJPveu3YY5ipOELOIZb2xqNRt5oXRTbZ4iBDDrSSLHAulrVP.0YLyZggN5jBFBvVzkcLALKBy9Vvgt1R4JnaFJAMCfzbBoPJmAhczs9YO18lNi8L_xI9L1icSKHK02S4m_H.CFZf20JjlT5_kBNVH.5WYjVCx7S3bXf10d6e_01z9WtLWSYviLjl9IgsGNObmlK1tKL7.tdaHhWDyTVK3hqWXUZ48MrRmWm6FHMjMslcjYr9_XfCAwMxH7g4bMvFYxgc9gXZ.6690iTOrlKvCNzUcMUk2iU9X82jH_fSpnnWgWSQ2muCx5jL5Vd48.cFiLN5SESrXcWm72uLUCxFqtyIRux2jNlLyr8SxNwTDspWYmRkK5UhReLBcrzjWrJhGUISyBFyMpGqnesfM.fzNwAKKhsJJ1SsLdxYjxN8Iw5DnO0wz5YLK.CzcpkLwg39.tMGpsVjKWdxY5nkZHs9yp_tArSh96L3YbYKmxJcyXcbKoULDnGAYNjQyLOPoakoKeYcHRWj4y23Np9r9TySFS576LYhQV.X2hkZdNn5K.UE_DufYOzmcW.ArIXpdpVMOmQeCljIKt1_IJpsfZpAjnBK.YLDywFKVC4aH3pztKhvgvPXxHVhFN0NZ5SujQhtgkIjETxyM7BP1rhkQFOmTncpTA6NQCKj0hmh4HJ41FFS66gS3Alz2OcEgpGPjcPQ4nWukdjm7Ah.7OBKpURzi8_OTpAEiHyPssVCh7yGiR8hfXPGJeOHA9EjxOgNr59ld_FV6OBjgwB74dVgf2ER6lVbtwWIRZPMxkLaoA2upErEFEHjrJ8QD8V5K9bRAgRIS1WCUKPUIKx3a3ZM_ODXYHSza1e_paLWmwFPaGQ2k43.gRlVxO9vpJZwXr1xkJ2oD.cRfZWx6sk_w64iq_PPdRMuq_mdVHmt8sRLIytbK8TsUWUpPdR4iGQ3CkRFGHwBzXeNOTDD0vk2cbCW8nYUP3lQDir9Mh_uiVRi_6Y0UgQM0khCLl5N5IzNGphdp62pCcjTZyUSUgAO0yP.k7BP.qEjUtmQPBeeuK8FShFBWiQjyW.J.TMq36V1sOUEIUseMJi.VeKZJGw.aV6uYBppOr7JNkY6hnad4HOPRmPnkSJhzHnT1wi2mb4_YAkuoHlljP6iiBW1dB3tWzI7OXf175CCrtA.9DZFHioMfEgaERGV31IrpBoK9i5r3siUxkVqE.Q0d6WkodjaBQ9byAwJqFi",mdrd: "pvO2RL3p5ZbPqvn9osyzj4ztr7iPfRrT3xUDi8gLuvM-1739099125-1.2.1.1-45vZEsM2yIAgFTTDRyy9He6ZTcWtgNmOsOJyHloBU7misD7Mm6HRy.dvXB.EQPa1OB7BDwTx_5y8CQXX03O6jTuZSYk.sIPatWnvVysTKwjxGpYMiZ2FWyaqOtZ_D_RsSPQQDwpPvBkoZGHiCVR4Mkcu2ppvBUo2gNmcn6OHBLxBWpxoLenuGK2lpiFCC47MkKFsv8_TfxHCQ9ou5lLbwum9Em3j6i9xT1sIv.gYEUpdcuJIyvsvp8.E9Riy6qdOJIPh0aj6TAZOeySfKkIikbKSD3ZU_r5Vv0LpVy1TPQGvr2gGhms7Rf_G3mdpQlxbiRIpT7MUFMQXOtXNDFq7_4YFEtHilskUjwvrpXKku71_N0s1XOm2YkcpbHVLE0IgFhFf7QF33zLrncGujVee5r5gwS38wGTrEttfvqYPpFSDxg1RcOgEee78VYeybPgnsN7QCxdHSH5OUz1fxyVXgfb_CRPSnvCZwhodSBvlfw0AN1xbbZ2D2C8a8tdWcW5J_.9bp.mPNvlGCUwZKi4MJItmsNy_egx9ftQlyMmZb2FmOZeYZjbo3Td9vfZH3C8mTtxrpMM.aFOBg6LaAO4f2P37zfDDQ_wtKe274yDyUgsmEnTh.cXYJNVgKF.i2cDYihuq2Tlh0HNuMxnkbQ5poiO0qu9cK3y1yyuQ5yi.Q0TQo48wExasBzMa2iWvV.gUB6BsiPDI91QfBvnjCwJTuTEeQ0Y1HYwKjWkO8svW.lP5TqSryukzpD.ecx1Its3hap4eY49yZ_3qLJDApC6HPcFniVaBSd8V0Si79JlgnPzxCY6AUB22A4r9xS1tekvzKbRlsrNXfiR6hgsvPcoV4.QYpDXeSdmBwAhR1IaSg.Pmfw8QfGTCUTbmVcpI5olCxk2sDEzLXTLu2EVBBuwtlRIHMvsX0NKi7dpB04U7OfXLe_3vAmnrHrqX5ALTXJHrWq1RoslN5SykvA1UO9lDq7yEcPBu2WjJgILepTF0rMQm7yqmeG23WIL0EKncsouBKCicWORawt6eoT6qzPyLGnLkDZnONSV1i6bjpyUDr_OsLByqtZ_0rwKtuE9cri.0TF2z1RJdXO_dXXFOn2ggd8RB8JfzzPy8mIimdG64sS99IKfiAMBDoM4wuLZcKV0GtzqBFpYoigdpsxHaibY.JGgriEqRdax.dNOUQuBsp7n79hyDFj2svpqH3If0un6zfAAhNVaCox5JTHOAuebZRdkdk4g7tb1SuvVeGfgEBFRz52GodlZ0JQV8Qpg6wxjyNM5B.bzOOyRebTUYER.X3kTf93AVZOeJV5ttEgnxShlHTmlses1R84karOwcvbkcfdQorvHUTNPszDEkzt9wZf9c3TE1gTZlChyBdQ.LWObHZB1AxLWe9cWVCnuT2su28vbzL9PrQ37OUapOhQcULv2XKAtyv96jMRaS3bEBSayaHbt3LVMMWdHZ_1RJOfCjK_aapWpR5JXL3JnYQiiXm29_33_l51xuruLGYFx_bw33GMEFegyZavTkthd5vv28.ig3G0LUcX5hGccPWLk_.brdQWNb_WZRfmovh4LuWb_XjDhGSFurvb5rln9WRN7m4CR0w.7TO1LliZYW5sfBFdUw7C9slxJjrjGl6nRD53uG4ADanH.ThaNeffwWmpHW9iVgdaeASn6jKHrzd0p08GEaOSfjD5Wc7kL6LCLeaO796WHxgbn_F7xjuDLYxnfVAXtou0JJwTxiVeT.mnv54xXy1f9PjK7jvQZjJyKC6IwNzFPPrD.jxWo3LljPg_mcOBf6wO.u10MVIkWtHEbQ8XjHuMVor9rTMivwvhct7NM"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3625c19df0832';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\/1924763085?__cf_chl_rt_tk=Pjsp2BLPsY2wOWyajonbn2jj7hoE2KkLmHqL2er09zM-1739099125-1.0.1.1-i1OpDiWV7_sRkU91PL9BxnFE0GTsdKcp9JatK_rs3hQ" + 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