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-449455649988.mit-edu.top",cType: 'managed',cRay: '90fafccb6b0b8791',cH: 'Z9iymAWBAwhqCj5z7sbkEZI.tpr23F2lS9ljxJDcXQA-1739178851-1.2.1.1-JRboBOKgpB1Ou04G6QOBqVytPWFXebxdxsEKE7y2jYPjni.jjjoe7W36kJdeAmtx',cUPMDTk: "\/post\/0214968357?__cf_chl_tk=giy95ARgsztv5I.9qKgVsfYA_UKO0p8OnoGWv9RMdpA-1739178851-1.0.1.1-CnVXDG78IU7aiAMUggoSrVf.lKsYmSjF0gU4SAF7nD8",cFPWv: 'g',cITimeS: '1739178851',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0214968357?__cf_chl_f_tk=giy95ARgsztv5I.9qKgVsfYA_UKO0p8OnoGWv9RMdpA-1739178851-1.0.1.1-CnVXDG78IU7aiAMUggoSrVf.lKsYmSjF0gU4SAF7nD8",md: "GZbxO8QzD1gO6BpqC2nxXb5w6wv6MP_CVuDmjBEuGik-1739178851-1.2.1.1-90XrEAi.Rqgas6MIPdcikmmEndTi9Jx9.EwZ.PGQevxGMeiCiKB.aMxgR.mZgDSYuhQSq939XsldKaQ8uxYQHANlXt01A1cGeGpeviHHB382F9t.Psx0.vkF7qgjjlZFI7RQDLhltAgUZzyD.ynYlKTUyAQJnX66iwliVOgNiNUaLzsrHHALyXc33A7PObSb1hdVNc8Z.xyFLNet494uFOUHAItGy.jXuPPAoZQx_cbOH5xDaAME.wcKyU5Vqv77hyzH1pDP9m8vU3_SR.xIt.LyUjqjFGOcXAq3RyE.KOB8yJDzA2r1N0ZRAJW84CNfBxQuS3aZvLTS1i_Ek4CIKf8axy4D0AHKlTlkKjnxG83PoyGs9TAO59eY9qRUKZeCEsRgqnLS3ANbPpExcjx2gObLa35KjfT.xgcc4Invtn6IgZlDrx.dnEVc1CgMRb5MrhYmqcsHHiOKACFjt4kh6PQIFmstaUQJMHtsSwujPDdSAUe6Ti1K8SZEFrqVpdW4gBYPtAJNMse698JU_h9T9zzrxNNyLTGKECcgVwUoxwIJadOv9m.34N6EBGLaiv9a05Kwa4.QDB0zmVS90993KYZrTnVEi2E3o8clxVdnE37rxxb8JaRb3Byw3c50qV7bkF72qt18REurV2DICGfv9SOEN__n_K9uBKOCzjHrEnCTAmyaA_Y9LfB3G2a4FxV1TzcdFb0xfDI5V21fz7.tL9Bit.fL4YXYkhS6BMpQ.2YeKJIeYNKO_myJKttkx1HeUzh0yu7qCg8wT8vgv0mcAmYOlEXBMT923TZ1VM6FXm_sonDwS9LeDq5uli_n39aeRNPbV9NW.q3CxKYuwiXsBuytQDFsv0dDvWU8AvlIm89n5DL2KUdJUk.aoYPZqxbTixsSt2IvkBrx4djvZCcdA6yIuYxbhO4SATY6B_UiFkG1JD6jzZHNITWsIqXC.KP4PJsi2GS8a6mNxU7U9AG6Gcw.G6xKaS4cf6qw.shbuUwiTyMjefWGEcTU2Nk3UW6MvgsgJ_w5JlERQ0L0GPRP8Tw2UN1Fav6HlBWu9a6uYg1wLhXXCpDmgY5jIhKvWseqawr4znT33Bm01AddhxEv2WfdqD2_q1pOfWAlSiUye0q5IpHBqpIsXV4TPUphbn1s4lx2LuVgXLNjZ6r7YTUEQRKyEmcS5PGNx_GUTSwj4gFeZmji_DXdPVDW9D6G5Z8uvHdjlAsuSpo2X7yUnIQaroQE.KbEY8GdcWUH_fHtRKgoNKMOITxtZ4fRSgmhZ54JwZ8M.MxXjCfYEIKlcZST0mm0_1sc4Jw1RRfMi4gOpTPNlHUF0UbwMmer3x3OUFxQV2eB6ZSYZXC7_kJR54mc1gbg1rIMVGIue1_.pC2sH_5qkDRvUodRk3BHYOYuL99p34jxt1OY6y2_z4TRpc8pLXaRCNvI6jof.2wTLtErhJLqdVYqvBFsfwt_5AYpeJym29WAK_eZuc1LrG4qExF35ax1852pjddtpCrOMuxy5UXhngKTRMPeut7neAJBlXVETIql3_SGdX5ZmmqW3Mo8FbloELNk1aU5YHFspalwxmvMKeEeUjTcpQq.2igLwWH0oM7qd2684yLZEHnbMewcFJwiQAWcQutbGQksJeYzJSmOnlKHz0ucH1dYi49J3Ld2LUFA7nDOmWHjB12NFozQhmu0ghi44Zy3Ak1UOEr7oxnzHRiFlssf6qeeODBcGBz1yn5GtV8xx8yI.Kti4fmvE2XuaVnKqqldXMlePKI7vyqoigwgSrSxFwhkvdn70oKZDB35ys33IwhZzkOE2s6gKQGJ__K3kjpIqiimO8YLlFD8EhIBN_5b1oyYo5cfgDudJM_ac10foJQjmo15QjRZIOe9UOYcl1mUNIMWE192qCAOIUibsspi0PoNmXnTjRoiAW_lBzKM51wvwKlt2wWf01TRmZKImzlrd9NwcHofPlrCHOuoqoJp0gJAdeVpzPqgNHdwUBvXBM33dFLwgnhP8F2KkfWR6Pl.J5R9_OykST17oXt0UwHThdSTDtqxL7uEG4E7LzljulmRCxhnT4g4cpomGEf.FVb74cIzbsV4ZSJiKD1TOhI5XP.qL8N4d3TYlJvulUWx899b6WDGhgDV4W2sSjeCNP0KpBjI0YS9347b1Xk0OwKUvfncPTQZDFHJh3LKkmhoCgJR4LngP17xUMcUuuEvk8tjBE.z85jAPoWmvnGN0sgQKV2DJkmKqvwX",mdrd: "P8_g92SjtzeKuCTYrnlShN4RkFvEfy7vIu6TwpCdX1k-1739178851-1.2.1.1-biwvMgR173NWDtiT5k9KcH_Amv2TzD3Ci9bzcPVahTBFNqOgNEoj13exOLs5B.xwSjg2IUoeHeD4GP5_73O3_KZN70Xv13CBUWqaPaTyFOg2ffmFwm4QPc9S9oeOUZr7GGbO_vBHLciRPdlrGWwjFu0LtPuzQBUvTzS0SXaVr1gVWusVjMNns5OFl5CzE8e6rbKvqBq19jyUcblwHuyuMKRPlnGtPINjyWYXH7bcthDTECi1hs_xiPRY3wowZ0NcvlNdVQM2R9POJNzaLuR2KFE5FpXCLYlLWuo1KWnVFDMJ6RtzFUzLgQYNYPtBVNXlhtFAp1JwpJUsWHfAPsztP6VkLTUeaWANTPhL9Kl24BLMmCIRKaq0S0mGfIqhDX0kg3C6iYF329nffIL1g0x_tCUv.3Qi39lLzWYg8PrYG1JmI6g4kc_BirFhaBjsxnNngivAvO3Ni1nBkHGk6mVGnOPxwYXLVMFLytmOS_jBL610O_NH3mOoSxaNmmOINDOaywHDetAOe0vn1i4rZxjzS0KNEaQrVx_EDHaF4O6E906nl10uQwfHqPF.5Z7fifYldGhpXCR53BK9KIqi1456wbL1RsYGEfY2FzHZGxmh8UVolrfwZcIy55v9vksAF11Zor9zmB.s.Tpgobst8dMvs2.nrfkPn5NVv_7Kquqe3Y1hBD43wNP7WyCsrxbGBTK9kPC.3zdlWifEexWzYsgNyk_0Q.HfXT3X4oCT.8dJ.rLnqu4mOFtvTm4sY7NfLp4eiWe44dhnw6Vh4ILCIFpsNHau47g8vPvSrNCdnjt.TdTThdxJHuFfoCV8hXave7wcFzj8x8CRL2LgnTcaYvcTLnFYiFRCgPx_9yElAaNXsH_Fn5kSAp7xpWWABFaXOy1zbJC_JbgSAJ1AwKUi3xhwIdpTQI5SHek6N4IBT6t2zLQbXZIKMz64PK0XrooxLHIAPIwcxdHx1O7VOFO.NWgEieVFM8BmjCrFWxyosdRdm78X_EmlN_iurHCRxFhu8NNlJuOnkeTbD7u51e6SkZzgJRHq6QZVYL4GfXRnSBpmMdCigPjNGM6lOjZ3d3DO7.Ys0cx00NmNWx8R17xbF97Ym6Vmbp4PgTHWdHbzy6BYmdp.6nO7Mq0a6r6zlKcNaO2dzhQ_83DwtDrpyWogcE9yJLNeFbQh1K9q4gHNajRZ_z8yuJTJyoJygqWvOYjwaDaiY6HF_01ShxyOOgqz1Uud3uVkX2K86jtIqfpvpIkH077Vd61pkOD3gvBFFyXwBPcI5Qj7CjOja.MmtyZ820Q8bJJsCXCGySU1Xk6W4W8eC2CRKzoCMJq2Uxq0qob5p31tUJp9KL_vXMwZpqaRCxMPGGQhsIEkSMyj8Fwx7EHk50tzm9.F65ryatL.KM5M2CL6X4ZXfsHzx3l8FfaMy9Msl2VzLU6PlWnBwv8gsDGkmR.s2GFGqd9Ja8Ys4MMR2UqChJvPRcKIfsZHQH5H6Jjp43tmtWJMZhbZiyyQZGNMtD.b2x1eFIfJXIdViUT7iqiCHTrpsWHs4v0sHkKADtRcMkSIWphgMwpk9JsriUXzgtwwrFTSlWci64rFnT6dlmMqQi0lY56k8suDxd.qDp_geB1pXKwtcArrEttsiFxjQjcg3nCfei9nYao.ax0SWKSe67l5CKn1O4lpwUNW26vnAjf_2v.ZbZbT7vGh_q4Nhjg9va4K12XMzukCwF0zjuAnNO56zUABVcGQcl.f6wmamZI7bTymkE9DhyBim7pvtRtvQ16paoeqFWX8Bo3GNSsCtd51WJZ.arRhaw3mL4yx4nR01sf6IjG8OBGxP_69NXY"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fafccb6b0b8791';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\/0214968357?__cf_chl_rt_tk=giy95ARgsztv5I.9qKgVsfYA_UKO0p8OnoGWv9RMdpA-1739178851-1.0.1.1-CnVXDG78IU7aiAMUggoSrVf.lKsYmSjF0gU4SAF7nD8" + 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
