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="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: "blog-694503187680.mit-edu.top",cType: 'managed',cRay: '94af5b287c629c24',cH: 'y5YgKqFN24DBP2VWdRj00D6Nl.kS1avwIX0ug8njCKk-1749123216-1.2.1.1-5KwV_WocC.Gs73c4syoIkEp89WwJwkLuC9wIz9rL3SSNLHVfoJPSPXNDetB3RpI7',cUPMDTk: "\/post\/7092185346?__cf_chl_tk=PKPH_e0_4MPF90QbTfeJEwI04hXYofRmSF_rrqM6zTk-1749123216-1.0.1.1-mQsDBrSBLLuQSm4NyQPhS.LKlcNO_oeVOLLhlO1YoUo",cFPWv: 'b',cITimeS: '1749123216',cTplC: 0,cTplV: 5,cTplB: 'cf',fa: "\/post\/7092185346?__cf_chl_f_tk=PKPH_e0_4MPF90QbTfeJEwI04hXYofRmSF_rrqM6zTk-1749123216-1.0.1.1-mQsDBrSBLLuQSm4NyQPhS.LKlcNO_oeVOLLhlO1YoUo",md: "I1GggX3dECDsaj13HZ7W3IEMY7fEQv0ALL9NHti2RNI-1749123216-1.2.1.1-Zua1BBgkR2od.WtGiJ98abfxs5KuSPVxxLatVMNCWC2PE.Ao5OovJpCXNTppfIpJXKUI6wMsWAzvNu8fi1XKfShEoI2.BAfi.jhTud_cJrLV9YnLaOgJwCkRc5mG54eYSd66dqgRX05afHrtykBUqGDIm3gIXjYigd85n8YMGyU5z0SvkqEgmJ2O596ChiX9JIZ33vfcGhRuL9QgBb3oWZJxt2piW8KBBiEaiEWuz8L0QLqrBdpRiB1RkEPhRZbhxiUJlSfQF3lkrT.PFeUh5_4ABmHYHUqTfYimWmKUivgGczC2lZEIT6MiF21SHmfiOJxzNycO9n8uXS53uZNXUmwZveyNkdRqhYg.F70j34T.NgqJCSbg.agiL9MlI7.e6TrueEwvWnp8RtTUeQQMS6.EgwDJhXFkW62K64I229k7pVxxM0suOBRP2JcJeojqyiSm.cf1LiygCE.VyuSaxArbAVVBbs0Fv4huuvF37GKjAToH7ZUIxo5BzXkN3u3baBCq98Z3wJyKSHXWfF6dVYLcGUMu__sstLmndkpbMEkXj3i53EHlKbxHKkcfEmeEQoSLw0Jm1CILVGpVnKeAHs3ZHW5wCFG8s0OsT0ulBf7.K0R1uezKJaSx3tZ_mQbTJP_YEpTkIwNYrvhLWheSl15vBuRN0giWvxYeJ44K8czY23HhmsG7wqhonA3ATInh9U5sNVeM_kDuWtZCPRlJncx.HUvDUHLZ8z.nacPs5dn_b6lMa168Jvna_iEdlu1fBvB4C.kXFWfkaHvwKwxLe0SLeAPlfCbAUYGwCWFFqOZ6tWOUiuMrQxBBJnENKEL9920JpdBow3a0zdfQZcWYNA",mdrd: "SljxqmohS1DGaAi9YEKn5MciyjP2WWC9N5J0Ibq3inE-1749123216-1.2.1.1-21zDDAWvDxZiauaQbGCY0_8dPC6GXXOFzFw46f_5EL_DlrShHTcKSn8xGvRDXBbiF11XwL61D3yjf5jddNCUlXTGZy0IF39ckgr0tbF4bkTDDglRdAS_R05YWAPPJDNks3DdXQL5rNCqBhxYdHNJpO.uGxsc8mNgiZJMW09ZSHrvQINBkmfQWj0Xu21UBiALvrOuVVoE2SOEGOZ12bgtezNiAVDL1pKM10NXXF4g2o6pYFbUYwZYWeTiZmsJl0NNet1T2izVj.sD_qK8Lt1z3EiESFE2paLIdxRSvEQ3ylDxVGH3IbwKetO6Bcnbwbz_z_UlQV8Kwurlt3VTAffmoLhB7mK0E3ty0eB0lUgcKWtREqQG9dmlYofv7Vk5z0EdRZZX5g9GOO7socg8F6WQmbglXpyc2WTcsE7rt0rGe5b2HVgV5diNmsW3lvREZNjVjZVbuXObL1tbyRiXW7SChKDxzn2S96DudgG_cXZDr2tBTXPksY7bzbwZ3y.aUhwl8qEnSHo9X3e_0e2t.gcqapAkFnuqViclbICqQxbu6d6nHqbARNcEg8YdwYeLR11UVYDLCJpKfdmNO4cDG8VPpu1fnaLRO5sECCGOfgB8SKjFsRaa31PrBXiH8SCRdR2CY1RUrAerlAJuEmxpYC6UD1EvDRJBYyDG._keEejTJNCFtCPxD3izrWO4.f7Bvjq0i17VnNHP6tKG7rLyPAPNH6jxiJpdFKYmQuC8ymY3BklA_4BcP_h2Em06OvPB1Dcu.OyxeIo0aAKOwGXurmGyveJNKjPkPsYkA2QMS5MMXsZHYcTbfgI_rovpCZAkLhyRdQq6IhDA2_4D7jluNicUqIIPEbaRDbLU7Na84ou3zzMiRVHMWrnqhVYOflkkU0v.C.b_e_eg6_szE8cmXLWUJFLm6LDmC17fmpEQl9matbiR9Smy.eTQGke7oMz2fLj10Bw5KJ.b6d1omEqt9THZVkGLbCZvQBq42CFXK49HOWIYhNUMp0m7rc61F0Th1m73dU07Hzhm0Vh2p3dDynC1EVLQsc2sMxTv8xR8vz2j4LexwCvnMlceNx98lsmK9cgCbJkLn6ogkDezc_kazJenxZyfiT1YAlFogEFYEbQpTMBs_EGCbplt_QP0hqudyPn7gMqeJq7scNFrzMx1KLjVmBI4UTn_HYmZKktqCqqIgNjIhYBw2Avv1nuutu_8rex55STikujK_kdGgVOmru8lmJuJ5Cwuoaiv0TPAyuMj60hGq_dXuQLmXDmUDMocaihctlRAdh6q4mXZBRZbtaYm78rsV.zZ6E71Az0LENV3_K0igomiXHBwPKtxYT3vJUTb7z3Wv.Z2Nl2YGIBquEXTafVEmnPSebnyRQR358yeJhF8cVE1Uzaklu.zDkQZMSuGRdWWaHIR4bv9emnoqIuXEnAj0aNtCLDElBUVmeRQkwR3NeDxl94fQYtQVAvf3NixjuZ_nh3P.e0PA.WV1E7jTf0GPa6Vdd0Yx37KnHhIOg13hqqgFbkIqMRXnlPgRLOECrbVmBkMOG6Ex28EDJdmRL6oGBVIcSrfE6tZR2.aJWm3EvXWpFnyZUayzY_862j4jAKnjC84Ts4XmyPfPea9pi2fWDm_nrT_WHQMwdLnmeGQEkvkuC1aQz8GyIBnvl79hWT5p__GvufjSIQl71nwkLUTnksYwiA8NcuVHmhwmdzxIbcewYeGfepl2iJ5B2qLm5aznzV2j_FMMQvJ0Lk0acYpvhq7inpvNOf0Z6tNXTJjNfCZ.WQ.3Hx2r2Tt5vBShkrgWvNNm4FkNaI87hwCfE8CN4nXHL14ADMDw4Wh5FkKbDEl9FcOL7KntxFJHm6ZmpP5MfAV890T7y13ZAsPnPAYRvqR7Mztt.t6sKrn_NU"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=94af5b287c629c24';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\/7092185346?__cf_chl_rt_tk=PKPH_e0_4MPF90QbTfeJEwI04hXYofRmSF_rrqM6zTk-1749123216-1.0.1.1-mQsDBrSBLLuQSm4NyQPhS.LKlcNO_oeVOLLhlO1YoUo" + 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
