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-439992206514.mit-edu.top",cType: 'managed',cRay: '91079e339843d639',cH: '0J5Tz3MRiEd_wtnV8IzVqLSUWRM7vE.Z.LqZLkKAnF4-1739311291-1.2.1.1-MYjKTGAnTeMA.aNQfnKJTznKo08FiE952WdNz4Ot9NmKeylq5zyvXOdI1NBygdjC',cUPMDTk: "\/post\/4615730928?__cf_chl_tk=OFZSPghgb._QD2xGsLrvN3KRT7tN7u.lyzmnXnsct8w-1739311291-1.0.1.1-LUS1ljvV27cxgEoUji52ovw3SjAKqug3oYVI7xcTHz8",cFPWv: 'g',cITimeS: '1739311291',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4615730928?__cf_chl_f_tk=OFZSPghgb._QD2xGsLrvN3KRT7tN7u.lyzmnXnsct8w-1739311291-1.0.1.1-LUS1ljvV27cxgEoUji52ovw3SjAKqug3oYVI7xcTHz8",md: "MpoBcrTcbhi8I_XX9MqFJPK_dOs9csD1hC2BJuGPKvM-1739311291-1.2.1.1-pJZLQdl_7oxe19drMsTFle2OJOzcpwFj7soHVzxOUe07zjrpIepqTOf7poQ1qZHOu2XqqxGVeqIWfoYjEol69f5ZAUr.0uvCbDutRZVvMXwnUy15FrdCD7DtQcyBFgwzonhwCVQ4cceGFBVIb.caPshsdSNYJVBqbeeu8wDkOHBETtDOhSVEHL939AZ_yOoOOJ4keZfi181hm7ffGXIlCAmR6tvuRGN..lLT4zKiG3cPj.uRTswXIgyDSQd_SQxoRUhvq6792zyqAhXHCqLLsZJ3hdduvkLsAiAlTGHS13BHhnPnIIM.wpzI5kGhIKpmeb0cOVe9HV.tZ6A7VGzb2s66sQwxu_pMF3dQOD.vPeDU93GYrvahdurbL.3DZggTYk6FOEuNY6l1CYIEBtWaIglhGGhuu3b3mVU6icf2nONwedSYCUZeNzFYxLmt6CGgW56HtQgRO3S9JPICmpiiR5aSaxYFAN4CMRDSGN2eZDHpuzlDNq5m30OZPxeKf.t3SNkAjhEOM9tFGp_WOtc685708ZI1GVCeLdijYuG_Zhs3DH5FNYmsUwZXJE7OCmg9SyKqNoEGf6MrMb2Un83E4vDn9N15y7Qm0yXfvb58GV5uDKcvUfO269mS.KnTdgOg9Groz_xcbfq34VwuGiGgjETId2h1imzyODbLkfI7aNZlOtp6w7i2xeumaEwWVOCXTywDwhQJHqXuNOesfoc5lBlpmKZSbJCWOFR05gkrPjJEb6D0V2GiVzWq32kKZPk1RzufQM6kAfF_FAdZ94JRL7qjqRCz7XJvwOzg9WFMGurqDY1zUz4yULxhS6mPn4iUUohredMiFcsWJytPoFFHJw9jYiQAhS6VTRW8m9GOi_PIKH4_PaGmcWz1PTxVGbVQCJIUWRQz.65ShcGCq0mznXszAV03oeBOEQybS12QG4NCww2iu5u_CvO7LEW6ykWycuvGLlm5hypV1doF_bhYXYXOhsfZcY_iWl4ZIYiv0xc4.FHpltahwBqzycoamjgVI5pouegBx01_2.Hur04XFiVqYPZYPw6z4XFVFEFxFvIMmBq0TRVlVyqlkTRDKg3WQXan0qY.y0iayFnhhblUdLvRD9sGwe4nhDqMBqbokSATe.rSXCIsfmCE9d9MVFRx9yPlrM0OI9DLUGhrewk_apjI.dew6ObdJ5IYaXkFzM.n80L2wQ.DnbIwNyWkXtUWW_eUWJbCMy6C8YQF756pCSstZaRFGUSkLdF41iurFDxBamhD2hDDzT_4jNL7a61208ROAgTMOrtA0307YcU.GeX_40IUzD.6rphkqEQCwym2aP481_rq4xjOZr7ZRjOmlqYhdzz_hDNvMmJKxgmmF0DuhHZfsL94gNhlL_slA8F1.r2U7MRBNp5gW5BoWCSgwDHVLpa7B_9jKJjR_FFHB1aEehs5xrqBpCT1ZRQ_jLZTiA2PzAze9KL5JV8BbynNTn6XwuUyWcTCqwm166j0Ex5ZKznNf0VsP.ebI4OEC1bY5NXWKdyieA8o38y4KGeGrPuppjTaXOJQ4i6uzDphZHN0A9ycwWL1DMI8eK_KTtDA3xd28M94PJqARlYIUFmAOc6EQQHD_j4pINDYtuIIjT8NWHR8In3DpIPPIXtPhgBY1HvJeBFE2Uz89pLHQQhEIytFdFtRpHNaw1Uqmu7jPKMFxvhl5uaxW5DS4Zbx0wby9l_loMkktvz4cB.fTQqqDaaaa64v8HYGnIEgJYKUpf8LV3E_RpuFc8mGpTcPEvZBzJfX4wrp79nId50Kmk_icVKZhNPFc._RTtlDunTViFmec7c.Jx4cMVLAXGHPc42cf4omYuW5WP_V2G8gx_Qfpnvr.QKxEWFXdcQNUWfsmTBsGg38Pj6jmdnS5tfVlhIih8Au5CPxMOAd6e8oalmnPeQoexjp4k6bha2blnTW5xrjuOuJp5d02g_JGuQCgRHbYTmBaiV1pixL.VbUCRGSFbSs7htcZxt.WdjTy2sTd6rM0NhhCH0N5gCquPT1qrgij9ZCeDJoYAClqyCVnDZCE3viKzs9zMRs0F80dSRQbh._.FBrrtbJktZ49yoEIjTqCMw4.ik3opP7_WSTYMzFHULQRxR6bEl7fJQ17tSz5mgYWP_MKL0rVliiMs0AAEr4HdOWz2UdhxvMxtqNXsKDDy.EPPhDK.rm_QHTErrXMI0FFPPPvpoj7KEI8OOWHQ3VWJDc8q.CClmTC16NP7aq",mdrd: "q5pd_7LrjLXdkrL4W6ZqrgRR3RgKFviOak_ri97B3Rk-1739311291-1.2.1.1-t6iRjh0H2rRvORBC4W9bwgGGlKxThHwwRDuoVa.3Mi11duWda0dVuiR_hZo2XfL1N4IEghW2oqlE6kxmGGgC7nymlXMfwE8jvWb8Qy01vmrTib5.yPpksC.8ztoQCr48hL7_7vwc0PT2Lji.nqKnJKNdGsxmNp_UUAQNUTiXFUnyEul74pOkeYsBH3DE9799wCgbUVm6QaZTGgrCpt4MR_ea4dsM5efMgZB.JsDfj2bJW2pZsM7_dUqAKPhMH7yvm.h1Ham08VRAKnANLDU8ISpD9FFuiBc2Jx1JdFv2BWwbI.QNxbz5VYHB3.dFvcBN.RQxhiSDwUK2tROIeFZLe.VOxIhDG9AUBBiFOW1jgnwrbXDLRWoyegEHAZorpQGJ5wRaKfV0qxqkzR02VooYCu6AnSVY0ngk4b8yj_VLh5oJM7yi6C2k6AviPSTMafDR8aQ0oVWIdlFCAU.nBHOCHJMh5VgGKbagZL5uSMXRbFRTwJLtg8JhpgBsMuzZONMP9W2cImWXtSf2yU3qMZuZJKqjS425Ic88E7DroxaW9PPN8.fBr5MM9GGk6x5QSs6fxSAzTnAGotIIQryizwY2GtJao3QEUxvLIGWfLMPiRGr33xh_fTWsjYA4GUKuu_EE5g7rvaZgCtG4w1JrXtghJRdPa.WnO5v.N4Q6017UXB.H49GcEfNqIRkF1ZrjDJj_ZqK1TWWO96rvuaTBh.lD8qhY14YBpKxocMs1lCiyI9Zx45bKuiQklCwvXR5RFqU1NCiaeA2B6quM8Vs_VGUtV6AmUNSlcSjJrBQraOBGziZEUT6fCqga95HeZCXv.jDElHZk7rvNYszM55p2KdNA.dJxoHNmuUWV8YLkIxiyY5WOo0k3qBmHFnM5YdDQ82l4IJVPrZIdSjBMtdOk7FSqCGMgEpeRPSlTvBCN73GTBp86OVYkSv06bsDnF1jjzQFtP.DdetiyqdDsRj23WIaN4Jq22Z2KLOCe35caP2nlEeelJGbL6QIkg74eQlemk9YkWEG8zhJA1Aq8A85H5HjvBODY5fxz1BhQM3CbMcEmR0p.jrkzz8YBtCVnV1pBzBCoQ_A1oEoiEPnNN7ydOr8XhKyQBa3CteJ4hzbwjs8zkW2VQprTsDYGelyrxJwPnfU9QMXHDoMZ9L56QEwzBOXdCJlEXvLsSJQfYrfjgUUjID_i1uSZadeTeExHGXe98aO12fsgU3CbijnlDnRJOph5Te8rvLlbFA2.vcfqMkg7BAnf91h.QDSEvE0dquPOtxO3oPffUPRpjb0NeIUlhB.Anv.KhvRuvAQI3SPzAzKzOoWW7g7.oQkUxbIcUZhFdNP4WNv.WYx0IxlBaaUnlrMY29g93c7JoJQ6X1Udd1B8utHHDRkbvYMdVPx4pPI0BQRzljqujrAARPE3JO7arm2JgEaz21l_vKBUIC4rgn_fWifAJoJUqSu6ItxlG6TBBvXza62QWmzrlkt_edomR9MYUaYwRJJR16hVajttgN5dMIbKDDbbfWmBff8Z2AO.tIkZM_fKZUr8.rWGI4UE1bNBA2egFWOdY7.cVshU.uvKfg2aCVtdcC5OGLqiNhM3ePPN2spUPMuUsGNEZUELF97jAgBlSdJzV_DDoT4PFMVA3aadw5HsoPaaxcHTabNvnZxA3.hdrTqvLjS1nzIfLUJIrJpN6gO4TL.DG_nvAkf8XnqTlL3owel5Vsh3n3Hp.GOib37Jo3HL.lldH1V1pVaPgib4OtqdJ8bYfFA1U1KtpHnJWKaayrvkYWh7_wT2luIQgTD8.55FPZRzt6dGTvnVO5HI2.ktk2Q9IMbFUxwoyx0"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=91079e339843d639';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\/4615730928?__cf_chl_rt_tk=OFZSPghgb._QD2xGsLrvN3KRT7tN7u.lyzmnXnsct8w-1739311291-1.0.1.1-LUS1ljvV27cxgEoUji52ovw3SjAKqug3oYVI7xcTHz8" + 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