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-372479519612.mit-edu.top",cType: 'managed',cRay: '9110c6544c391320',cH: 'v4Ly2DVIHCIQTKrAp8I1fOCW3AuSASkch6jWidRfhGY-1739407306-1.2.1.1-nU.IOTfsV51OhNRPW2oYaoEU2KUlV8bOyNIz910rvh1zn.zKVQZOCt00dc_WzTwF',cUPMDTk: "\/post\/4126590783?__cf_chl_tk=J6.wUEBAzZ2B5BoDtEZ6f1lQLOS.9Hmi9aoCHaFsyc8-1739407306-1.0.1.1-qiXl.ft_bf3w847AnUAvlRxI.rS_B1y9.EkH7kNQU2M",cFPWv: 'b',cITimeS: '1739407306',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4126590783?__cf_chl_f_tk=J6.wUEBAzZ2B5BoDtEZ6f1lQLOS.9Hmi9aoCHaFsyc8-1739407306-1.0.1.1-qiXl.ft_bf3w847AnUAvlRxI.rS_B1y9.EkH7kNQU2M",md: "MLsm.FkopJ67KQhLN01i2QSNmvnWv4Gj25KjsETPcEc-1739407306-1.2.1.1-QlECTgwRGL2RQ5MQLdbkZUa72mPvHOf8T2etFeAK7k55tlQnPuG46BvOCIv3zBSovCFiaoezv6PXUdsE65NN4CIB1qQ0qYDT4XzlHtJi_FYMG9HirH050QH8aBo7aTXhOsz6sThrKfUNEUqwK4wFQaanImcWBhq8X5onjZuXbknR8hK1SPqdbB9lkoyDzNSrfYorvOWYmhTM5O.8BobLnAXr4r1zwtwKON179FEkSVrdvopgkUfInSwHcdOzI4p.cdcURWzMCnJSgI70p0pOOzBrsMaAOmNclZkeIQ6sEuxWtOlZnllhqA0M1dt7o5aj2k0o0J4Ied9AmZ.x1ea8sLVtVDT9qBEG3mw8DIVeMMVz6826xMovQybubN3OML.pkNuoW8Qpe7K3dWrme3ZkDA3yDTephE01qgXCwOPQY5nkfFOjX3S17nv5_6eZibHlQiyieU8zjkRyaEdaB7r34uwKs4DmWA2KEB11MbI_PknuxPRW6m9uCDgpn_pngWoP_cgeKKPR4s0_uO59zpQpyntLi5tr3ILaTJRk8o36UPfSv7jcKdD9qvjjhcmSW5MHYNVOJVFpDqhGYrcp93gh.yKU5oDJ14i3rYHWavLRFrnLrWlOZ0PmMjoVEQHUIkby5KoKswzmeR7efk6IRV6ORM_DULk2xjbsVncaOq8VXZbg8a9vF8whSRvmA3U747sdc4F_ib64mtgVVR97hzGg5kUV_2VCEh0FBLlnGuRuSkmLqnn54cf.1mk6eiMSfDr26BZQb0igN8hULQpnZYfUBK7QdnyKtHSPSVh1gN.cpC5n9rIkPn5TvTsSFNRSaqXq_GfVNaHtRWxj9WpuRlds7_O.J4TZFfqiouwpm92qjWZGJAO8mD3_4sXzWhEtCcOUTaGeWPRY0a9fJL6d4r0XH8rC7jAdeQf2dPot8W5O9X_fs12UilM6.GipZxKO4MRl4JqD1JGFJOo90OvwJ4D0c4mRdEsn_JEo.BNSM1PNKNgGH8J3cIDM9J3wP8JRujC6q7BeKburd52eCE1udLpdnK6kOpFRWEqxifEWeI1woHgV3WkdVZBdFlfrtjBZO6GpzZGhOX9ixB76p5fVExGHOoPZG0sOKxXlsfRFyvsq16_Ku_fiWnjtbZpR5uoaUt6vQVLj01.21UxNtF06wmm9JN8r2e6lhgVDLum8EzPAb6u2h15DYEs72KfL6_rbKx4NOhamcR8S3uXvb2fr1bPHrODj4kfjNtOL4oj2IaKn50M7hVTru0rNyfE4v8_s3hPmPuCHf3a4ZOtCIr3mSLeQcu63JSMrpdPNLC54tQ4l.kLitaOlEV9Ao9GwS8ZsW07udEJVSe_6JtkDmqg15iWY.J1rig6M9Zo5ewqwLrvxv._dqBd0TZIAv.IBzFjjDaqBJa1qdjhW3qKl.B7CvY7Kq5aefFkcFbWSnX5FFCiVxm778HfIQpvtQ2ifIEA429D8eDAe1OvJY7ffwVzS9azsEDZZxcw_OqJXRyPiBH3pP7MBYhU4kteqE49i9F9BH4AH1J5IpQjO2rh0xBbZDOuJjrkm1.FoP8cOxeHG7uxPlR75pEFWNKBe0kcrkc_RC_rtXVIpBOvFrHZVzvYMv3VkyfJbY9hCRZ94PokxmuF9gXo2QXaI0Qm2hCnZ6VqYvc8gr.9DtSbsmphx0OVOogV1FMBteWA.X38FLwGffHHqR.47Nkl6mRdbNYzbPri9BXNKCuhNauX8CaMZ1tIXM_ERWb33nGWeJcl9b9OppWB.etw2Y4zC.79ss31J1PhCyGLNNZNLcc2PRIv3T9L3nP8UjdXKHB6.WBMz.QX.0JzAPhFPUIv3QliOJQH4921ZZuKyqfTW1VaBCZer4B0TnUmxYXmmQOK8v_gKMR03DPTGCQ.iSypD33OK5Ysmn_hDO69Yi07Hmcu4l_OgTTngd1I0QDUBLD5nShv0pOHobZB7QAbqpP7QzSdWkYjCzDQt9XkaX5g0Lly1nJRwB0mx3ENe7X8uQxTuGfpJl38uKYs4n9mL7S_UzCXPRjf9tFja8ZWyJDveP3XpdeKumPK8tudWOckdyCfRiFluoe.I84kVu2x_UYES7SjMDghjvmefB1Ze6fWFw1JSu65Z8QefaL4JPDzlaeasYp7dtbjO2QvtZfHgMXClH88LRsiayNSs4NXK15Y539jLuYiCYSDwNiaIv0DIa.AkzLws9DI_CWeYdBETal9nX1XwOpxSQ9yBimPW",mdrd: "gXqQbHSO3qUylSjtpRmjIaTpn0vEyqrlS35ijIUiwX8-1739407306-1.2.1.1-J.IJGfXRFX_MZ4IjYVRu9SLV1Wvb0hZ0QR3_bC0fv_n16TEqjpf0.RLqqx5ETEHvS1DlDQkbJasd.Ok1IlU9qQ.qgsEvMvFO6qhtD_zbRBQeUGInWvBlFW7wjpaIo6h2rEEf1MghvuPUYppZV2GDaNDXJTNBnzfp8051ifWVikdR85bCoG.Qy7olqII3BkXxgPBlwgKy1mOAxjUyD0T5dXZJTsODFNt91FiQKF9bBHMreCea7hFXjtKNNriiXOGRuUI8LunqQWBl6nmsyKs2W8DDJLu9olI9plPaqMk6cPR6WaeTr6hmsDKK9oKcx27O8KDQ7hYWlZTO_wiGHpk59nZaqz2Kxu9bhFM2cArwPQ72kpBZTU.76.zIdwyt8NJRbSOnrJKNdXRhWRrCiNA0XUHyxsoLtXkcTLOoZ8awCoaxS3nQ.i3OdXbWg0ygS9cNuInfy2VyuLYsi8.0FbIHOSap75J0TVLUTX.3cJAQcng4ER5eF49iAvRk.2dCFUn2Z7blgGrGrJp8gXAeQtXC2.TuC9I_Lqz_.pEKxiJKbr6g6fjCq_5zWsFeHvRzlKk1co8WZmbScDZliCmcTkgPItK_IuqSVkEWwSZuwlRXvVfmiETOEgpg9Zz7Q8JrRLIpjQbRNgbiD0nK_EPAZbFnnRERNhDG9hyM2eNkEucIVAQWrtdFF4VLouA5aiydrbOPloT21KLXvNxVPylfkti8A2zUbZBD2xPLiSN82WavGvpIykvafxsCDRXYIl6wbkbF2taRgGT7XicIaLyNMygIiZJP29LcfexacNEf5aD7HxG1Zx5g1WFqjv2hdpJ4vxNW.gY7MKThHHIquu01bkLBLVweoeXvqjQIlmA4hrK3uCeTViH7XotssoCeezcFN7FiL32f.p5usGWO_ilmuGi3HspO1ZNcA4NURMsWLGTt_by.MSHWRiY_sekf_p6qOPVAfd9ja6SPEDwk3Pg_BVJEgrbGCivnRFNuSvNwMjurgDHBl_za1NXYnS_mOSPE4Ial5oUsAk4cuOeW__nxcUrfpXqPD2BdzsZ3qSfNWAY9Gob9518NiX.aTqa_tqrr8FvwvEM1z__iXEPxTJTTgO_KzR3HkPrxfm26AbZKC_G2FZYRX9ZceS28bkcJiOhPB6G_YliSw1qfV1Pvat_Xhqv_bKgwhP9QGRely8Dw5s.sLev_EAcib3lQV0oEr9NnDX9uh4aV8CgamIBCuW04a0P_ZvXSzPeq6.NDcpbXGh034NKxzKoiStlHfyMY0Sk.d2l56grsTH.WH0lT0tuwhmmR4SNoI_eg_B54AiiXZBSkfYhbjHCh90NCVEvaFmdxJdECcCMbjjCi9l15a1AfHoFo5UbA_kcavH1PvXaOmzgnwsaszYPG9urDmgqVxN2A95dXld6oJs1tugAyYYiw_1gV8H63tuHKfQtvQkampWSS2y99rqgOAy8PUVBRWXaeSIgCNZX2ZTD6RtxQLorrjT.tdi6J34MaS4A2yZ5e.lik7AhTDPm41ktVMJouwJoCdiss3oTF6iOHS2O0iYSyVcWcfxWEAHn0uRFs4WIzXB74bdo9VW0s6QSo_moK8sWqJge9O266xhBQjuvRYamQdju0f1LdofsGUUb5DaP9Fq6RY5GxYu71Oe5B41W1WO2A6ZK6Qj2W9ZGWbBBBr346aVdbdk8uw_9imb10VaUiJWeVEqEcb.Tly1SIaez6smeumamBHn5ioGHaH0Bsl69h4_7sYpBf2rgNH0MRJgURNfRAVhPXEoJq.qXf5gtTM5Z3sifVZyEYpnQTJTjIMr4CuSOiJgtEmmi7G8.Af93Bbk6ECb0"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9110c6544c391320';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\/4126590783?__cf_chl_rt_tk=J6.wUEBAzZ2B5BoDtEZ6f1lQLOS.9Hmi9aoCHaFsyc8-1739407306-1.0.1.1-qiXl.ft_bf3w847AnUAvlRxI.rS_B1y9.EkH7kNQU2M" + 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