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-619601318635.mit-edu.top",cType: 'managed',cRay: '911049548cc42084',cH: 'o6tjttsKfruacIaYMpYUpvRnQSa9Y79vf1PIX9dOQcA-1739402186-1.2.1.1-jzOjYeEOZVci91HQjOrSViZLJsKNzCi.QFeXJyYbRSyoaI2oyksvid366QIUGMqS',cUPMDTk: "\/post\/6905743128?__cf_chl_tk=xlWBLL.Sudd5ROpvDmS4_fT1eDTDXy5H_tHJetRp_1o-1739402186-1.0.1.1-rcZuqSnfXEB6u5K0zrASlyqMvFcv3L1G.3mDS8OCHDI",cFPWv: 'b',cITimeS: '1739402186',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/6905743128?__cf_chl_f_tk=xlWBLL.Sudd5ROpvDmS4_fT1eDTDXy5H_tHJetRp_1o-1739402186-1.0.1.1-rcZuqSnfXEB6u5K0zrASlyqMvFcv3L1G.3mDS8OCHDI",md: "ZwAhXRS2Kq3FUkikmBBIMQxoZqr0DFEurACVwZKJyY8-1739402186-1.2.1.1-p6Bb_DbWGXfLIxhICpkKTvRc3itJEFZeDZbyk26_Xq7MpV7UsBRygg8HnC2.8QCQm0HDyDiiS6G1qFwo8k7fnGnj9cTLPGwQ6mCEYm_ySnU1sCa.7V2l1y7sNPQKrd9cgSV7g.AfrYaQGSPv7ylGxKJ9EYZcnE4ndAof9lWffWZUv_yBG4xncixas9hkccTbofZVp1yz.thLUEvYBE6Fsv0FY_k9NBta2xj8W32m9yR1SP8dkjX4aEisdKhE0OPOioagNxtzCvVsZeqrPHZksE3rvOjqefO33_XJSf5WRFrThvAG3U0dsOvnEDiYVuZUXB4Jjkx5FXgV85iMP.I_kIN904.2.oBcwYXO7QYz4zigdI98oyW_hjXwFCqS3pbZ_UEW16etDIHCZqdG1S_tVHgyZfkRHhT7oZ3vYm4MxD72TP.vLIWRIHRHH7Sus9xkTTS5Tk76CCOqgembvAZwSnC5jWlwIQ.80L1oB3DORRNropNqYXdDVChhD41BWb3JHXc4U1gED.i7vWW2lN62ryxQb7FtiUqxASUyMsLUAv.qJC72PNcMqfZU8hvmTyYBZESBN0.z1K_tUQJoFjbxSwX.j0DTQv9vE7SsuZcpeK4rW9aGBx7t5XMfXwwR5P8zfvNrSMPCBwCDZUTf3Rp920HZnd3ByTUJH5sZtUqpgNM3bc.qsRlVgWgZc_5dtx0KnKNrUag5azZYt.dLEkITvUVAoJL8N1iTrd5KuxY.3Ig3KcYgYyo85neUHhA1ZCzYx6r.INyQSq.bDDPLNGRSMfUBoVTkGZ4kEf9bic.DXnvRCC_WHKRfdDGDsvmD9ePr.ZdfdZhpZIDK5ttF_ZKXq.s9gket6tszB4Ih3vvXCk67x9QL4EGles3.Jq7F2jXcQpFWDYcjd3c.ZWTjjGevuDVrRt9FOhTJ_VxjMjMHOQauKd0AXeBmwoF_CzIRUsUnr8gEemJHQkN9dqZaIsnc0krdthY94ip52CIHpn.eOXDlvf3VO7gPZFBauxlYgFZ1g.ExvNegvD6I3_o.jdvKTMFIun6fSM4ZO5g2jwjiD8128UvpAXgQwdJ_qruMtDGzH2Dw_WTXKKL8VGo8z2aUiVwy2GYC2NED4Z_WVofU2MQ5PJ2IJRLqkumfHXSuzh_sXtBu1XSTT_MOZQ5chJFe.D9nvOYSGP90usOrrxXW4Olt8zBhEogQH_la841x9iJf5AGB93H2tgp3NlOJx1BgvddXcfZNpvajIVqIR2RSBLln91vfiezJuWslbjgA4gwPOOIteMQKF7GWxTBQ44FmoRpIPfFDjiTGZ8Z.bQsGBjkwU36eG4lpTWLbPaqvjaGLjeqcDDLUHUYHly.RkUMtHTg9vl9Np0Wraq_UFQI19mLAuYhiNlCVmsQ_hILtYD03QKPC5wRS.30jBe8Te9J_EFVoWIH3kWAHKP6ARaIz5giI158mvUC0QtO0ryJD557t8.N2igfZ669TmAQ_H2ABZQJrvB5_SY1qb4JHoTrvMGU_mmyr_wdqoaXx6DOR3okClOlIxHHIVgEdjnEMnh9S1_w745dO9wAHORb8XQ2prWbKx3Dsh4L9FEcRk4I8qgMzCS8Ro90knRF5btx_yvq28n2h8LxzEvXqeqxlL8rHz._oHiBx7G99d6wlkzgmDmuup.p.zWXhMYVPmUF.UfMDWrxOrVB9UYbQg3rEo22pBxL.h0aThGZUNKdrVEYf_qWS38q8uGJ51L6miTFs03QgLJ16CLayY2Ls5yOQ554gUS3fPqV5spU7NHtK0haKnlVXga_U1FtVV3UnrpJFhXVsVJQOHgQeWk1gmCbg1hICqqx37nremhwNvhi9IwPSqJA_OWwyeaZ3xXWC_uPSKjrYNc6g6gw7RvxBR.6eSh6MfztI8wos13q.O.R4pcywBHTtD.fiEWB1De687SFx.M82z1Odo4ZimUFKxAvPGNWQ_CqO7.061X1yyiVbIh_GeAvVngKuMOVomQkU5Kyw4xV11t49eIWdmGYZQrIODfD0USsceSPX3kzngDIjQRxvRS69ssWd7HKzBT5vd.Jw2uOdRTQe8kq.fjbg2oXjgO0TtitNwlf4fq5vx5ykIgPywNCjvWwq7iOnriCUQjsyJJXxtJyREyzQFc88TBR3WSKkv6ipwB_1Tl62xAHLDzZJ2vKge8qB8Xv2Gt13vK4q2RieIS6KkUSryV5VtN2V9jZqzVVwI64E3_47glR5f0GSrQVu",mdrd: "wbync2u9i_gD_byGelsbFMm3myH_4dBFd.uCi6O_GWs-1739402186-1.2.1.1-dSlCChb8mXXC3n4pVtCuzCYXAIauXTGkjUzHk7KPc8bCAGOn5rNMnLhMqqnkM_EP.EJ2VZrj0hnqwXvxiPCgIuY0cRvgCRydrkp_mSFLwPN5LcvS6rx2uiSdpMA9YgOGMeMkQbiGWigOts4qYTFvtgGVEVn.DLctivKleWxyvU.mXV_u5h_GdsU2HSdaehHO1eVTFVG.YzyYwS3UgDn8OJeVNYNPIIG1Ar2y0kFakZyaKkBuOI3ghE_2TPbDr_dN6B34S411Tn9ZihSFC5DnsG3xXWRd_ReJaU_gkTPEBD0VEyGcit6Ui1GY0lU4E1EQ243F.wVoqPWp0P33Iz0OqEb0.t7NmGDfyUlIwVgDLjjsjnwdnZt9KFBfQWffhgnOY7vpGtRNPxX9bea3290dTuSsEFn89t3_HVXI4e66iFbzrvdWlFVvlSQzUq4Qe0C49pSYWGbSe2K_eA3anCvZpOgAZ5y9hYK9vtv0JI7OwEaFQ0O1WzEO364CSIY0xjrIf6pxtmatIODS5NKjBrN8WFXBH.3EHEhbUX2H8fD06rlCIH3RwLeavQnu3ir_zOwmJi5ePz2j14hcG4GwO5QzqjrwKvWiFRVNtzrdROH98Fkg7jSpLfPIKhNlMSrWbt_A4p_1v5F_tRb0HPzd0mFnmt4HoaKUIwWXI0FA6VrwH9_bvpnibggkV13KyOc_Apy5xbXoHJSa3NDGKyTlZc0TdEgqI6Trzl_KCJpmoGGa83JHNtrb7FhyEtZAD._CiiA9kqlrqstLLlO6TC6D3wBosV23XNaMg60K_65ISvEkN9pbqCeg2fNhyed0GnDEYikrFoJ9mQ88_4M2Htvmc6zHWBY2ckRBDZgDDwFNWHKei2P6G38_EqJHFK_z3cxB.Ha9Dg7SKrRQARhz50jTm_Kuzmml7LBdov7ihJehPtOxKNLdDwO5rpDXOLt4B941JZNkYNAZ3ux5dUxYDo2cgO5bKw3Bg_H1sOWnb1LU4BpYvpzxOd.o_i800aXyfi_jz9t6fiuugF10rAyunSbZo7nRyPV9j8Q_BnTR1otMEweSSXjikY7cKUcwb9mCMFDvkgC5eKzu6.Whh6WhBxh9rjy.WtM2tLjA_8eqYnFBiiDO2L5zuoOUo5yImnRQiRZVidSgoEOI5b0CjpoAjpd.9wZ5ivew7KlBpMJ.24KEStU9PJU3ZJ.OuHJIYAJ950NlKWY37P7NJUs8fQSyMesPQFyr9oOC.zirTLaDsjRwHtGVcq3eteg73kKELTLRsJtt0O..h40eBfmUsMcN9vqPUKveqlNtLmTuXyWeQG26ZMp9kpopf.dfLk7Gi.kGFZgV.mncjooIfZjT4gfZzvJLgC4joBHuWpZin9V3GjUnhT2NsQujPVUINxUL6IL7rayhzG644ZfwrJJvYytXjBGs0NWfQjhms4uDaNyvtGqqPu1Fw3RxHf_wnB8EuQe4SOwUOzLh4RnnHFkYohtcjvb4PYM9d7VpuS4V7SQU2ONaO.C1Mog3SsWB5QHmKskkUqG.JPXah5N7YZJnMD7Iaiq0FAZzPngspct.CE1K_q9GBu0tHmrJGzkS7x0R9pS3drYYVBQUFvjk20NHnW47NPrXWtXXBMmHAw_UNokddAck0Z9NUjNRHbAkQco0pVz3xasH46Q1354XlsF6HOp6xVIS_mxXxbsh8cCX7AwSwa5jl5WW7ukqvs4WsvYIOa_qS7HJTB8WuO7v1tbzc64CPu7dcxUBMYIX27GDoZ_tIWmu5_Eqy7hdhNmFbdbOacXR3kP9gXnzFu1j_.iUJK6whRCSMhbswnPLPSysI7wzj0bBScdhj8I"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=911049548cc42084';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\/6905743128?__cf_chl_rt_tk=xlWBLL.Sudd5ROpvDmS4_fT1eDTDXy5H_tHJetRp_1o-1739402186-1.0.1.1-rcZuqSnfXEB6u5K0zrASlyqMvFcv3L1G.3mDS8OCHDI" + 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
