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;padding-left:1.5rem;max-width:60rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{line-height:2.25rem;font-size:1.5rem;font-weight:500}@media (width <= 720px){.h2{line-height:1.5rem;font-size:1.25rem}}#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="360"></head><body><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: 'ask.metafilter.com',cType: 'managed',cRay: '98dac3dd88af50e2',cH: 'CtsaepBRFveJ3cgvKKHEtM7EHV2a..hZJeMKPE36SAs-1760315811-1.2.1.1-Ty76WL.De9crF3IkGPKgjOOePD2GGy3LVj.IE8csD6lL6xr.f9j3EvNhgHE.ncv4',cUPMDTk:"\/rss.xml?__cf_chl_tk=pS4U2xoSPUlajzs2JXp1qe3eXLQ.Oa4SlDoI_Ej.BD4-1760315811-1.0.1.1-RJ0PHByXEAMgrUoFZUiJZTKARsvAHAv3ducatyJFx6Q",cFPWv: 'g',cITimeS: '1760315811',cTplC:0,cTplV:5,cTplB: 'cf',fa:"\/rss.xml?__cf_chl_f_tk=pS4U2xoSPUlajzs2JXp1qe3eXLQ.Oa4SlDoI_Ej.BD4-1760315811-1.0.1.1-RJ0PHByXEAMgrUoFZUiJZTKARsvAHAv3ducatyJFx6Q",md: 'kwMXItE1IvbYv_uxUz0IAwVVvqnPbWKtLI5No3WEyHw-1760315811-1.2.1.1-f.SGrKn42pYDTiOSHqd0m_zj0UKznox_aII1VMSj3TmDke299ZuhIKLdq1Mmp7rU6L1EN_bco_BYddMHj4iHAfHslGccLDMHy9aqmziR.6nTwAm8AS9l1p4gy8GsR8nI6LXKK8YBS_aGcFsO8qU7efcpt.dmJadBHZe.oU7VFZkOIXdaLmhRCasvk8Lp.45jFqZT0SISvu7FIcSahQF0WabjixBR6CjyzaaJKsWh14E6dujWFPkC7jznJCH6fFO4n2tV9ctsCUPyUZEmQ31qy3U4rPSmPZlYsJOdRzUJXNtYAJpjzX6AaMJGn1bPTgXKxPEDcHwCKZCqMF9HSe6p9mh70GmqJVD_RVZEGl.btFDif1BKtBoOUca0eVF36dPTl62Key8Y_Snav_wk0ZjmGu2yKHG80KKYPFIHavNsE1dq.bVSndjbASAqUr70DzaCBXG6tCzVzWgR.wdDF3cQ9bRnw8w0c37CuLP0.5Ih9Yzcm7yoIGol4C.MZIOih1PKKU5MTU4j_HaAZRmPF2ZDlOsBWJkuIsRNoVd60BXW2kaDzBy1wmaU7UtkwuwnlXwqHPqzkiZPSGV6Az6O.v2McS85SkuWpo.4uWbopXij4QnJ9HFKDyoYQ5y.sPI5LcLepch8ScS_._XRNJcld0PxGXuVRPGPuvkAYmBFABeRUa_fCF2uim6ZtuGfW3YmSlwjQRAtNxjuyabzDAlVZyRUk.nO5Ki.nH4TsYBMikaVcL_KFT3zSsvFhK9.rH.kpE81WHHciMVmU6y2AN4lEOpxjh_ORXcaEykE81gEDvFMfovZSIQcFvs_gaTivUI_4dPz',mdrd: 'bgECOV45RppEtjMCsjb6hXxjy57ULFg1fpEEs45umiA-1760315811-1.2.1.1-Vv6PcbIztQUdVnmD37pKWbO_Bjaskew9VKVY870r_0_jkH2wSMEyDKopnC00ayrTWvbuTrFanTlogZDnowh8bIKK6U1U_OEB1Ksj1fmq_kMKgBXt71e.GNfii4mbf6dSMazNVTSKNxL7PqVDM53ibi3JzrIWaBYgBxXlOiLh5FTiGj_4VN7bakvyiK1wk3L6y1ebf0zrwyNMvGGb_3s79ygu6hoth__PqEUsg.eJi30AduDRYLI1CyeAHba7R6tYWdJPHai40rw9Ntpo1rj_dgepozWqWq.kNFuVUxaf6pcKoSHBouTF5dJ0gw8eArHt5JcqLOUBsPZJ9rJM69lcCpnv15f7svmf8VBsQiCvkkqrGrLV.QPgY92yuBtJnQHKUHpIdJJY5_orNzmKFwOVIpi.6HRHYkAY8IdYi1DWFRXin16LFS1Oy.zq7oZqHfWc7wwR0Q4VncMqU1CkTIOj.z_nKYv9XitGtBfz1zCIun7UZ5qF0sbwcQ7RFiP4_hw4QTwEWE4AKsoDsFXHMLQJKYV1Rwm7ac4OydfohxJ_nyUjcpBISfYACCaqzV4OyZlcwslJ.O8rQmzyy9c42p3vQTCbDowgLXUdrXCchfHggKQduL2qJyehzA4mKdj30W9Bwjub6XS2GZIMASJ6I5ofNTMsnSWF1QFwNGYEpNR7n.mMmwABeU02RKwQLMTpmzxfD6bAFE4hhQhJfVKfVrcSwJmrImGHApkEDHjgdalnTo5H4NwwH.mm_YQsQh3NjyX8T60Zm4s3YuPst7uuwSP5rn6wRPfXdrAJtW_3K3sbNndZU4cxZRwl8n.V4p0xXw.pDJsPmULB9mn4MqlO7te_exJu.r3uFBQ9d99vnU1tMWIdygpxELCa8DgrpjUiq9Nin9FnsA207DhPAy1lKbhOOJNfCNoBu7tBz_wHTVMolYzTIWIYBauYhC_d8F2UoxAkmQfuLKXDNrEtpbNphcXdOxZqLH.XeOxdC90PqNkz9bqyxUtl37LuDhnXmhiHcKU0.Ld9hpAwHyAxHtwuYCTGjAPLJMoJ5arOHvPFq_i_0BhLQCucxFcG1GXCo3ZA1pdVEoqIaD0LmqHiW3QFuw7MW9tQehk1yMi0PpQ9u4LWkhzwpCH0n8.fBbVeTq6GsjOPpehGjDpxeJVcGl_3QVvAVf85G65SZZk1f.y3T.GVjTKm1YQftDey0Fr_BCzdmg8v3AQxX7sCRaGpDucpO0NDuEQ983xX8orcm8yV.iPXJbgFH2wuC533IMXG9BYk.F.b66TBRL24vuKiVojSR7XiAf72wtyGQThmJ8v9TWruUqzY6Ha5Eu9io4YqGuPg2hotPw6JfxRZc_3_ZKdMf1QLd5I3XrDt08xxHD4wcdY4q6tmw27jo_HtHrdfLKCnF0qjXkpE7YsU3qZ66jC0c8eyXUnU9fQ4BRio26MwWTG5_m2oHhe8wes9t_udsC6ZvhnGkx1XCkPjieP5N5hg2qUey.OCL4pHgieALf4wTfTts_gZwPCHccqFkgxfosEpAXM9WVArcVY5BavpY3qzk2YapdWloaFIKRc0hBVXWjFpodHfXS2bXuwTOQKW743xrE_e3ZIgbkjc5OTFdHHlu8OpsOzE7tV1cv_ITvLsIXQ9emW8rLpf._o3asdXjNu0NkXUD0eZhGp46wGSqILB8ME3F5z.ujIS0ADM2YenOXPEZ5Cjk9abop_n3EZZqd2M3kzsbKfNO30GRAvKBeRYTfueGq3Y8W2VtM8OBAVSt6GH3VSm44xR_AaldO_MuZ.yipymJCHd50qhSYcrg.Vnpaj7w_aNqplKOg6Imu4wA0HRWHGuD4K8Mekc4HdDFkTKGA6P0MAowO3aH6bX_.LDShLbSg8A32fwO_ThXFxk.0nDvsuZhohPnA3gqvuQt0Q4smM9',};var a = document.createElement('script');a.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=98dac3dd88af50e2';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,"\/rss.xml?__cf_chl_rt_tk=pS4U2xoSPUlajzs2JXp1qe3eXLQ.Oa4SlDoI_Ej.BD4-1760315811-1.0.1.1-RJ0PHByXEAMgrUoFZUiJZTKARsvAHAv3ducatyJFx6Q"+ window._cf_chl_opt.cOgUHash);a.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(a);}());</script></body></html>
Home · About · News · Docs · Terms