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-370192045528.mit-edu.top",cType: 'managed',cRay: '91104376aa4458b4',cH: 'JADIfvXOe9PuYTgZJJmaHpZpb6cmTWTNx8XYG8IZZNA-1739401946-1.2.1.1-QALhVfpMpNlMjUCts.qwvqXFwswbkULGaJO8CD7w0DbDPkEKZiGJ_90otDYkpkSN',cUPMDTk: "\/post\/7610389524?__cf_chl_tk=TqFv_puSr82VcKdl7B3tgOk08c30OotWWYxBOQIETTE-1739401946-1.0.1.1-nqUsROu5dFvL3ujqcR3uS0t4vOYZErKJdMXN_Gj.1t0",cFPWv: 'b',cITimeS: '1739401946',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7610389524?__cf_chl_f_tk=TqFv_puSr82VcKdl7B3tgOk08c30OotWWYxBOQIETTE-1739401946-1.0.1.1-nqUsROu5dFvL3ujqcR3uS0t4vOYZErKJdMXN_Gj.1t0",md: "k8rHoOKPMggoNSyszTcpvSYznIB3CtWhPmMKwiRaj6A-1739401946-1.2.1.1-b9V3VEPXQaahXEHJpV10vZm4IqWxfxu5a9LKQlnFy_h8wNvxiTodb6W2CutVYJga7esGJkpkUnQsgfl48R7pvEUtswUTbEJ8EhfnLOHMHw5dmsxmfzhTwiFLAYQAF6XZSTpLr6Qmq8W0E2wiPPtm.itfDZ4EEm8mZ9Z0pqv59s1DSOJcy7mIQFQLfhEb3OPsJHmtRqGE461Iqkg0jNCIWWjH3FnpK6G4pJki1MZdW.n8DJLmpMjdnX5zwqwI1NknZ3YeXJm05ScXBHaGKcgDP22wnCUjgEOfCeluFQQMgY_FlIAeT767lUGi.mMJfa8XrKClLJWlH_oJSgeRGVUHzrCZFPOyr_wgHW5Z7KTWvUdRilXq1wvwZHrcCs1rMPy1yDvUHbNBD5d448CkEVDXcafKxMxNOc8JyRY9KfXi458iWhj2y10bPtMFczP2MCFxH5izYfxk31IeHIh2hvb6rsWqpdAGKXdTS8tCJJ4ILfMSHTZGHVn1rVbMuHN1hXPQI1uYQaxzNANut6oc8NY3ltIJy.FSeW44IVWxWWAFrM.5OXkO8wCgBx6syZLgnF0eu9dElDc_ZdhRO2tfDWlcc1rDp5a_sd91hUqCNiBt1XAM8jmh2TfYZlye0VsD3rjqY9tdKup2tptSZv4jL6soSD9BVT5z6UUKcm4kQ0eBzMZkIX9_8ZbcWhjWFrfvebiC9orw7ETfCxwHFNmjOq.69Xi_lWq.bekwXxJZbVvDP8qIbBYD63EsCL6jvW6Kaz8rjMQBcgiQZ7prdtXB.mj.qIaJN25z_8KOrzLljpLV4PAzDa7eUaqbEUebqAbu0kYO8VCB4JN5NqDEvgsbdaJSpFGxBapeELpizZonn70hinXZBfeWlT8nAyruvvJ5jwM0jVXsvMUDEI8GTe59nlWdVmndFH0BJR70fkCH5RbQ469E3d92pqqalF7de2d_jUBIideXfOSxkK0e8cnuCpFIGTRMX4nNjs80zKZ.rYwF4o445HVQUoMn0lZ9WFXn3417DqEXt4xq6X0s31nzZ9GN1fX_6_12uxtWSdSbGR_aCMrZG6P7L_jzvllLAbDM0i03ZVqZuVoEQ9ohlk6vYurcoNBT7NI8BO1WgFklzJVOL61.j1DoOhWiuS69oEDWIRCZj8Azu1i4HOE.rztFDR2tc4taBvSFSqm3pya.MOGEJfNgANNdCd_x_Envz.PIapVh7qAP3lL3insWoDRuD7jkXvMEiGI4I2dK7YV8TlYquwOq3q7630OLjGecUCf4CiToHJab3I5mJ1pg1vvO1ckMaP82fv0evDS_61PqsfmOMJM1GI3xMf3MxaCEKtrIL_4p22xxLP4LkZNIh8pL.SgFsxzK31PPFxFwc.5X13k5EAFHeVwkMIekPJGNSwo8N1YFQUAA3JAMyupbkoG7Pwg0.2DCDYrNKWGLxq3Cwu3abjg5mEeN0KRAA4aZtd0dpX5Ev6crpMzLtsVu7sDqX0nTf0UG2qTpClA3Tqe2Iy1IXtykgWH_S9SraFnxAYVomyVWucYJNJtoLLMm4Lf7WCAfkOTPaEs1uT_TParRYltpfrpBpM3jKWJ3Wf0F_02BfpACAld3KnFOcjUv1qJiFYrLkE3phPNJCk_y0nKDNJ7RjvSA630sT8bSjKrb20UkwL.MhL2xGqVI4u8ruD5Gwy152uiVTyc04xT418y0nu2iLR_ND_L18ADDOkwJ9ojKIsIc1AV3uRDJn89Ha2rfZt9hbHS6q7eMBMd3dblOaf5OI.LzHmOiQCB_yPhuAhhPe_Uk2evFqrNspE1uByFRL7p6II7kWHpqw978_GblxKI0lvv4iqSjjlrtXIB0Cy7Bxv5nji6yE82dZvFgMjDHtlWgUA8RIA72p83dMyL.5ZKz8bYjDZ8V490XXJP3x_BMRTfNJPzMyMbtvcdJs8c7lcnsFtY.VbMSecdTVuOyBk69AUG369qgM9W8R3lcvkND45L4uQOUejkPag.dYYj.54_66Ns.g09AEjMYHcJfgyEJTpfNTgi4M.65OGt_s97R1X_FKNdkdpdPSyl68z.i8XVTr03FK6jhscIEkX_91pflc.KBLAWhVbuDKN7p.XEkLpGBoPyeFmdZ8BwDCFTZ5X4ErkCLLUONOa6WNwMWITbS3XXqFC_XScMdOS2NbtklanUJ_pFeM1_hvgCJ3u7UIn8naBDxX5w2z_JU4BB7HnddHUXqZJg5xVWe0kZrYiDxo4hO",mdrd: "4eaCKumdpvlXcs.saoKCG5qd7t2q9WGrcU3qOsLhOu0-1739401946-1.2.1.1-0t3IAQIjjWBHGB3HJYp9GY8gmMdbHbq47doa8.mi8BKTCIa8h88jezefC3V242rf3xTt6vw6bndlFc7jBfNMr6nzLhvV0b8AjucXRxic2jndWe6vCtzx8O4wG_pjI659NHkTzEPnPtjEuJK0vzIFupiT2m7lw.Goh5D4YxdpREUDzco5WJsBhLACLJ23pWU9hjfUKBAgtiBOUC7afZVlRTYjG5.u3KqLUef87L7HnP6FLiZC.GOI7CO6CCCtLw8KNmO0e6MYGOrW8Pk7iu2bIlXxLSv_taNYSHcJkNZ24eGztOqVqXBtD2xxYEEayZQ7Q.DsFNLZjILkey90tUmvvdjoxptl4gCoba7e8JYaytBP9f_elWi1pe5ZTbDEtkNs41F2kUbsbEj0D8QsBJQCTXLq4TCmYOdLpiKt78riXMmnX_4S20RH7tKo.j6a4Lls2tCwH21CDGYCSWf2hqcbDJPvxZUtGQ4p5xQMZ9gwqsR9xOKYlHBKfnqCjVKvHsGcTlbJPFNoLrN3GiKReqsFvc6kQWHfCDLV5MdJmHHM.xUYy735.pJ_xwQkG3ZP8tFjx1m0e7WMvsxsrlI5g.84fdByYMkWaO3WQVxzvPP2Xj3oOrKGwxMl8nQnm8RANtfB46Z4e9XcJzRYSLDxVI4x0nx0AwZSr9BflIB0ED16I9kDrkw8zVa2Xymev7hfROVLqMFI7FkzV1TfJAZjzJhurTxzpbQOrBDwVIr3AXqkgAPpTNdDZNdJ1HY2CQwFsrYnu2usmD7IlzIFsPhpQU68aRiSu1T9kU.3SHMYl2zAo_E72t1GIHNJtPy05IwLjT67u8qZZThWOjIbOYn80LElKKdv5rN8pUHwbgYTrwLQBIuX1_Mhzf_KeYOQbUH9ph_qD2080n854o00Dgii2wKD3Qbk.MyggJZPKFQg_ewj0lLeK2nqMqRWJnKPX4Ol1buatcRvd3mmmwV0s7NxKIeAv2zYkBupU8LN5v1Eb0lnCihzE5PlGLPBpyuiGTseQclOObVCeYxEVIVpSTR42nB3_8s1JeAy.BpFcLGPUpufMAw_1YuDiByijxcjQtFKTV3RP0y_pRPiOh5gqXHX4PjiX4fFzQ_2WrZZuYAeIaM8P1P55laOe_rdaKMvJIYSXji7vzWK2bTJH38dekIeHiHsJBHwgGmZ1aOZaTI_NZhCwLn2BOQuVYHtQZINUlM68Fm0br1nXSmgN7sZ3dOQTED.qLpiFFNAmicRbkSadypn5qKCtdPEbdzIS0ODxusOebUNzxpaxKP0S8JdQtczdPINbe0onE4IFfWakFH_3EB5G16eowZr8YvQ4Zm9daRhFCBhnGVregl2562AiV_n4.x7N_P15E4tqZG_mdPgdx1.vuYPfZcMB6ZngH7.YxlglwmSqZPDmkAkSs2lMwI2Gm8Flg1MsNwnEES1EBd0G5Bhga.vjjkC_1h6cnPoQihqpeW16heK2mHCV9nzMLPowHYsGqZ64V6qBuuWZ1GI16iiw1fvOayHAmfOIDcWJUJn8raFykQMgHn.zmN57fFM8wLSRZZZeLdtQfHkWIIoH7erT5J.tv_BPS1woq2_l4wQuBOesD4Za6tne.vTCOQfOoxbDT_07SfKNgGOJgrysuMgETT9qaUnMf3mcYTtTMcurYFbF1vqYW8OazpG0qkFbnVo6uxBivfaAzeg6q3ixIUYwDu6gGXiNYjuKRqmCrrgO2AY_FnC6y9HOKdeQNKI5wh3nMeWc0zmADxnUIgony1dAZZ06ztvoo_21h9yKSQmeU5bUM.HLrpnUowBRzWvaNF9zLEfC7b0ORkfnAoW594TYpOXnJ4ctrhCBDVz.Wl35Qjy"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91104376aa4458b4';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\/7610389524?__cf_chl_rt_tk=TqFv_puSr82VcKdl7B3tgOk08c30OotWWYxBOQIETTE-1739401946-1.0.1.1-nqUsROu5dFvL3ujqcR3uS0t4vOYZErKJdMXN_Gj.1t0" + 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