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-affbfouct.mit-edu.top",cType: 'managed',cRay: '90f3ac45aef8c9bf',cH: '2WiwnZnElKG80EqDN_xs.329xWFdJicpC.ABFBc_HVM-1739102152-1.2.1.1-CPm4JZO3vC4q1SPll2a0f0KmXIHE6ZwWlSPxaJXxitlqjLnJPZVSEKkpJBTSrR8t',cUPMDTk: "\/post\/7039258416?__cf_chl_tk=7Bhgx.ezYBz2URi0IyLlL5h6_g1Tq4fVOle_fnifaWY-1739102152-1.0.1.1-eF9xOFQW7PU0MnM7Kprwnlf1dWlQIuytzGHrPi6vz5c",cFPWv: 'g',cITimeS: '1739102152',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7039258416?__cf_chl_f_tk=7Bhgx.ezYBz2URi0IyLlL5h6_g1Tq4fVOle_fnifaWY-1739102152-1.0.1.1-eF9xOFQW7PU0MnM7Kprwnlf1dWlQIuytzGHrPi6vz5c",md: "jgNWEeVaMWYvczGrsGrdLk9DO1fyjM9cm6Ve6gR0_dY-1739102152-1.2.1.1-pR9dqrZa9xjfHiHQ4WyZb54q7amFMp0Vnk_Mtj00BvOPQ9iJScNg4g.4mEHWekY0_6.VTEugCdX78OQSO5e1WYunkPZPPoI3BJ.nIBDAorRZAnTQETIPvznogwijsv0drvDN9M8bp4_jazf.uxK5s8StZtNQNLTt9VO3CElfmRJf_uDC2mT2oUiLD.VtlE5UAc04AQmmDeC_f4K4oAI9IK4eT0Pq4o83Dr.gosSgkqFqEZrJNSQGr8fCxg4jbCAkqJbQ29GTB2Uik7iODwTgVZAKdZoBEvyWePsU74kDm_m2nK3jaU4mI.q1pVv2nVb.x8C.moVuE8Vcr7Mj5Dq4TUh0FAfd41rfL8Rx.rFmPdLaW.fOUjDJyuf3ZVlKoq8b6xzwjWwOvGj9t_4IkF5qRWMqsyCGAmr7KeKye95C5Doc5B.R2YprYNYmzPg3tRzaNa8b69jq39nrIuwj3MkN7cPrAx8vwG1.H8whLlAfmHEKhrC4gG5rRZziVau5JeWcuNwB2aRepJNhuXwtLlAQvuGOd5PNGCRePUpAYj9oulQ71472jR0UKf1JXxfA9xMd4208TIRA4_fxQi9rznR6h3uhv0rbIoB4Ygr6DTStqIPz8WQxPfnmUoIo5vtuc8NIeC7yVOBewVzm.7CyJ1hQAmS8iX_Y9Ck5XlkfgCCHGj4vCuqiJy1be_xeH9mpJYDejJzvo4qvWSf.xZp8AugVcUfZQC0C6fqO6wZHuUOu3uScX1PJAzFmSfQwt1u1xnNME5jI7V2XPJysQDn2vqsAKFf95w.kZSk.qYh1rBj4XYW5xtHL.N0zuONUmVvrVfMH.4jBuqXuIm2c6YPRef1GeiLbYw_tqE91SFIuHMZrxagzHzmn5n92Seb8QoTcYihUSSQ6H1DI4g61SqOL56Sy8U9SEEQ2H1.28ghbTqcf.oluCAFE3UDNfOlATl82ClX6HrhpMoDnIWYqPDWesRJICXCqfQP.oiVI5r8lhezMKg0itAmy1F0cdGu1BWWzyY6c_r5eXgV_kEFzAEqoV4aAqvcB5LOiUanRGkAVY21b7NTJzPtQZiaHNeuvyJc0JTy4J3yGd9BOtnJtU4lYiTTvL_egyUHEBBbmooHc8XplQ5JHh3oplf5bVeLJpGrTOvNQKhSV3A1Ofvsf2gTS7NYnj8Rb5Yeo28YnatDT6dBWVM1x5rmL3N7Rm..Y_w8uzUAjuSSuSvQliOVlbBxqc3QoYZNf1aIkHjq9DFU8C86wwbIG2RihiVtFa7E1kQF5XIqBS7YsFBEZL1kW.S2JAqIIgjl5VCYC4J3Hz4SUlmnM6Cs3EOtNCqwcOpdh7Q5UqznanMtxJmiAo3zw4ywU2SHQkV.99FDDh2dSdv_.guo91_5vffr.rOS44A4bQDyxnd4C.SWoygqAEa87AOmJNSKwdf9Rs0qleFUSxd7z4nxP9n.TX9.x_AKnFo08Q8UUT1XNUXW08xNWdKiXhlZ0_tANpQ.82yEabjlMUwULvyXz9RcP5WiyShDdD5du0NxddY0_1I0H2OveKAh4zO9yz3G3xVb33BDck1AxxywlS6g0runPg4ogxkxL60B..zSYANjSrQWsqb6WrzlvIcaZlQRbFVTxhpkNutywSyJl1nqHKahY4yAmYp0oUj6o.S93MhdrclpVm9ncJtFKS4k5UC1O_8QUE4F1nkMEMd2wWRJeZvMceN6ekODMS_d1xGDmKNFTEw1urFFlGIreNiJuKUKhoWrN5i9d6QC2iwj4PW1yltpEaPXkRpzVBGLZ0trylAYTGVQYw0FPqiMRmM4z_QnLO1HuSEZ0RBs52BAeI7136HVu9aUoUL2BX4Gr34gxVub3Mqu272Pf7hbU6OFkeZGzypsQrDWGfejUK4BdPLKWYoQpJp9PS4vkARq6begCuDPD8t9GVUIxJ3NzYJOoZD219vklcpJWEHVypuwdpapzARk9icn8V.fRMqDDf7I1ZMzvCzcXYtNe6xPnVO25JceFCxXEdOQ_nh3hsnW2uxGIuQ4VX.WsPsAm1aLS3gS74xRjYVf3fefXFyNuUKjpKKJu7EOVItuMDUX5S7p1yeshnEasXFXoBj5NqSyrHmjg05_JB.g45YtdRFd5L5ZJ7MReLO_rAqPFQ4VKsS6qpl9sxlHOMxRTr1L7F0YTJE_2DLTk7Q1NnYMKaiyaA_5_TecnXNUm3Gk3KMK2CfeAb7cuMLbexCvQ0d.IN9DExsgyeajj",mdrd: "54CjIhZ4Z7UlwKvW4HXRPfAyg06MDuHZM_iP6oIJKUs-1739102152-1.2.1.1-741yQTLkNbyxxHEAMNmPNtIst2TImc0fkovM6nDmegLOo6luX4iKTE_eatgKkpDZZKf.3KGI4gPfBB78DsLkKGRc0cpKadrAw3TjfYNNW1SNvrWySebXmAyjUyvJJ9jyXmbdDgIVGi7Py9vc.jv7mFZgJ3BeZhNYiBWC7Mq_rWRB6RwsBIkgQmcRbeA5q2CvsRc_wcNJpDuT46b8WADtZoRPk1e77Zd4qnhff4Ssi19Q4oBfkMrS_ayHcCXDFQ.1qbi72MVr8mZbvcYKRmediKHJ_YHUceXSvggd.yN8YLaFDMKxYAV9BpditydxYj0e18Gsj3ikEggB1sF.zGSpSDdgbmYu1Hw4V.WWKGPtQvnoTtcpdxUWO2s20DfIOkOKBnfbJAtQG5mAnGk0HjstYx37Glqk1a9ly.PMdhKV0ME9mzH0FcFY0.eWkwzIfAwzm71ykgRhusnwShC_kuHlMfkqRRbf.Bjq8VifBXfe4qRjlWaunOEn2kIqCCpJKrQspij_UKrNmsSDc0vaBOkHwU43hSBrxvGYSibOXY7DAzpQHHh.OghgnxRQ8OTtjgi8A6V.H5t1xTjlglwhKzzMxv5aPv3scoMOohwulcy.T9M4CcooXe93JNifMqoe0_aqn7NZlOShA2T0lm0SzKGcl4IsNGcs1uIWMIpDip2BKEV81Qr5SbvprNhLOg6Bab3BnF_CZWW4nCqjuaBoM4zf4ojEmbqxafg5K.tlEvedY8Ux5Py0OjSrWXDWfYOBIqyWm2mHuZiJhYR1nmicZM8s7zFzHYxK3I0_7NBcl85ihAkRJjc86hCyvXx9BUjS74VaGFz9g6vTcPoxdw5MVcXPQ8XAO4xE264Az.e3us6T9VXa3g.nEjGB08elvgJDGfpszTz4rCB325Lm4mbb9.j.WIQjHqCeWQHc9KW8FetuZGW8PJvtF1ld7l6eOH8Z4PXPqtcineAKtloz2426NJpWecwaTwO70VnDo8juwOkF7PP702YrhvhFwo11V48kM4w83Dwc4o4b_wyKTNiolyEok_BvoVotlEBPGKE8iBTOUmQaQu3hu6WUfQcH3M1n2pZuK1ggiA0YPxsjALhKjUcfEyAUYaHx3dw7D29rRfo6XlE.pW_s9n8dPNMUNS13tyHx_AjWPoulKYE_uQwTn2BBXf2QYhngCSrT1JKTILFxpXZHC8yRUmI4LTZcNwS86nWeysEG3CVcQSFZehR0egv9Dop46rCpef5CKYP91QXneToGUW.niUvquJSctQXxPCEzc9k5d6uS3Sb4dZPd.XgD_Yt3yplYaVUPHKeYW4uKpDfLu1I6jKNPzqXl89LOyiVUc8If3j1m7x18663PTvU_Z1xqDmyRlTNrk5Zb5K4qYmvScaaOR00GTnET3BPcqKsZ0sRW_G8oLm0LEnAP1e4jjTFZxhyU1D7kxPsKLuvZsVAXQ.TZg5Sh5ffy5rEWRqOp2ScuupIF7EgC.T2U5xnxrREVuolM8RyNZZFBG7_PC6VxbjhhJU8Wc301iJ.kPE_Aw0l3tfDtzY4_7MdeTw6sZv3QI3SN5xf0PIAB2nlL6xDksjE18VTDF1pMP9VYfRYoFTebK_3cHSELcmRQKVVVeEYT06kXr7qdnEGxq4mjf9S.1KbOR4_gHo..dDz1M4V8VbPRpeb1hENxQKI3vJsxUEBxxi4C6mozWUcWU27Cu3nndX2Es.zheLj55u5oAS..kory1g1eUOTFKebX2C3GHt3TvVfeNTRwJA9qb4QbVtfvv8zESiTyl6GUM4VSp1YNXh0W5IrRJ163C7PTyeQoJg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3ac45aef8c9bf';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\/7039258416?__cf_chl_rt_tk=7Bhgx.ezYBz2URi0IyLlL5h6_g1Tq4fVOle_fnifaWY-1739102152-1.0.1.1-eF9xOFQW7PU0MnM7Kprwnlf1dWlQIuytzGHrPi6vz5c" + 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
