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.

Source: https://blog-affdc2ga4.mit-edu.top/post/4362507819

  1. <!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-affdc2ga4.mit-edu.top",cType: 'managed',cRay: '90f80276f96b81d3',cH: 'rdT8_yyk_kKVck_UztmNicM7uy.lP.m_TSaLsVK3I38-1739147626-1.2.1.1-kzqjNm0PIFDloLrb40vAutRqbBBRpzrKoA8ix_i0SuEgzPoQg8xnwLslhBQV1vm9',cUPMDTk: "\/post\/4362507819?__cf_chl_tk=2jVlZo2hBq9Z8rZDP9amo26JPlJPXwfCHDbvgRszQjM-1739147626-1.0.1.1-.gSYVdtZejhC22mbtcZ905jxby8lT3zb3A6uNeQqAqY",cFPWv: 'g',cITimeS: '1739147626',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4362507819?__cf_chl_f_tk=2jVlZo2hBq9Z8rZDP9amo26JPlJPXwfCHDbvgRszQjM-1739147626-1.0.1.1-.gSYVdtZejhC22mbtcZ905jxby8lT3zb3A6uNeQqAqY",md: "nT0r8YRhP1SeWvjFMvGCpRxASCp6izXzO66bwmVSWHg-1739147626-1.2.1.1-YM8cV588emP3OjLvfBOwStEtvitRoWcPy9HWH2pWjFVTZF4T_dSBGWqNp.Qn0tpXDzRff7r6iSwI_XKDWjIk0WC0xLnnxs0iZrGbicfn6jD6Pp_IiuWg.vNnqatMsBwUVXuO88O6q5e3eKqVFbl5KDBaZbWAfFWKx9dhnhG6CjLHpSBB3M3oREpeJWiYbUOVxh0jnNY8LGKsR3UVbw791u0pMGf.EzJC2IIJJffO2NnNa1vMGiHHP1G2NmxD20Rr46jMUFODbQKPdf7CjE0Xhs34J6CTPKrN.Ea5f6fxYLacPCEdxL4defYvf0Se2_AUwUCNXjBQ8nQhxb2tpsvkJenYfosdB.hmkxDXlA70LfrkWuR5DB4rPIoEn.j.INRm_KqW0edm13YSlACYLnTCO7YX8M5iPRAajpFQrAoJMcXR35wIOzHydrcdC_HohMcdO3rpJ.tezkd3p5bGwDpFfMkIlzhhaV.CWriSQ8._kN98X5htErzINp.uwxBu1xUpI.XNkQ9VpvUzuyXnCUAQAH.M6y673N4bGLO6eOM7GZxpjVCsA8xD9P4IkiGgQvGU5vnOoR7dusMLwD.Zm5Kda7P_JHbLAYXVRSnbZmrlAag4pBkd3extUcI3xDH1IGsJqHjz1P4sF36BAIJpa47uKU3IVSl1pUGT8Pk62f1UUHZQavauadLPyAlXofebhXOsPBb4WEBJ6jNJbxtlsw6ORu_nVhnIPKxRaNpKj0ZGF9WBHPCyy6RR9BTVAa12tUd4IR7.A.R6mSmdsVWG9cZcXpayQ.c3JQWwbZ4tAEHGDSttUtbPWSt22ath6AVLHce_f26Oo.TBYXTZByjfw_FADDa_mP1mhH1YfDijbRBnevdtf323TMkOuk7NV2Ht4w.JL1hQUAGMQS2JfFi7tUyGbdGIe_9kBAIfszFSs5nvvEeUG2nA8TZ3n_jxtAAhRoV1JpoYUYs_btU1Tn7AmfI2UPxa0urmu5ZKWUnZWOboavA7SHiEmX7olf4nT5uax5xiTKQXqidoI3KbdZvu3Mrn_O7qfPflbWqQGNjZKy_AY3eyqDhxJRi4PFMsuAn8X8obArACIkPFoTr7.1VwvosL7r2V4gpW6R.iinlOMEStQZNHhV4ulMNHTd1oHFDms5zG42whrVjnAa.SF3MvqgignVRMupETLozZY3Zy6ynrOeODybKvGdEEQ4SliKwlRJ.GUGwTSWBSM9PTrStCS7VW3Y8yHrXB7QdezrpPT3wC.K.T.T3Z0QDZg5MarFBD9zOFI8jViM.Ie1AApJu0a25L_qBNvVadNljwvMdYjcH2pe8ZXERPVDBsmoWHTHquBcEPpXjOlpofwIZGweJkY.kMtKLQlKLS4Vz64ju.ahyIDwKDu4xfbCQRR4ki4XYxvrJgg7z1cC06mem6IisHe2KUYoLX86wZsTregRzPY9ELarcGAQ.qZksjxLo6kwpp18iyHKoTUUs7Nd7WoqVqiw2kW7sqb_oAoeC.BY89VvNI0MoAWZq7CwLTIzEoBw0o3tNVG_avmT5GPx_oPCW5cTJz4kL0iVfWhPykLpJuwryllVVeCIRna0qarBmkk5Hx4kvmzDz09ODDB57F7l_IC7pKxKlWP7lokjitBIYapPUR_DPWC7RvymovPu5g9ucGuf96KwQDsuldiutg3CyihxEEzA3aFSe_6v72yjzTXYQ29hkhnkR5iV9LyfbGOowd2RalQduwygMLzPf3xr9YsPUZnK5OfOPBxj268i2MhaPMfr6X8GzaB9dAp603awCq_JPK0rBJxOUGKvZLIlEY30S6H7.Ge26whdO8mTgzbBR1F9yMJIdbq.bQmJKizOAZbiHitQiMlha4cb4AZ9XsLiHWs70Wlg0drD00rjFAWHKNMlCRQpkz5Nj5N0uiujIR0YSzkbBY2hWFF32Re7nbTzOgRW3cFp3vD08JQVKnlcNWc9tjaNKG1OKSljg_CRilsQENj0JOeFhTk_9z6F8b4L8yKHuV0oosEfP.L2WvGkiu0nvm4ct90ZSDZPaBwddgzrnJbEhlHgyrJvFyziRO3LrOK.29rMO.9392wC6w.da6Mw1URD_ERpsvRhv_skTzRZHJgYDPibRfhFEAn4g2vqokNDYwh8pDexVFRsuf05eLhVYVCOnwoiITAY4acZiW1kUkQ08eSemG716BlFpovxG5l3Knq5jIr.aFfRxe7iBdQYAAGtno9sPi9LTgvzLQdcsD",mdrd: ".Vvn99DwQ9UyXhAqAVMFAnPn0XRciGKscXfuu_pv3Fo-1739147626-1.2.1.1-A5k9LDpzOMi4zDTT1YjminsEU9.c2HnNN5ge1gbL7adhn7iWgXNe_UE6.uoGgQ0I7MNylRG5Zn5.sMTgKeOCQzqnlKiIzRI.cnjplYdFNCMjbloAFYwVSkH3P4mFsxzQPstyqunRqrDqLHJdqfASe6SJkX1k_zmjhZ6thBsB.3T9QwQYbr7gmHDo8rIKkpSYtcrc0x9ehWzZlMasbvSEqOPBB2U_ZKQFb3EFdA1eEDByA4RXkUmwppFhhpJH_nffL4OdqVfio1qdkuWaUGybz1iT0tNLSNqHmCi2qn7pZB26_h32wYJd2QDwO8KxSxoplhB7i3qHFFPdQweXUagoA6xwmtugDr6EUFyum1xQg4Vd0.BEjw_Plf9KpnwjOVau8ePnFDbBLl7edX3uhq1KvRLsamDt4VuGik9vxTt7ZE5njo_C8BtCg2X_k8_aexcdccNLU4H9lNBHtd8_Jw1M_IedpcQ8NaieZDsiRGSj_03mjjpDDeweluUUk.zNyC7HMEt5O5n8XqjuAk_6tSPiaSos4bglE9crFj5GBaDsv_DNCgKDBFGwLJla71oR6QZ4Ilz.ABamxS0bFc9sxb9rLlARyjwGXBA73rSgc5auPtNy.KRFmcSN1.pF34CeqP1vUuZkWJoyYw.4aUgQwCGH6fQJasF0YtyAoCvUpVHZwvHCM5M74cLjNzfpYacnBR7zhZMN2ftgwdYYXs6MDoOlQwsH4qiBsdmwjD1kvPJj_iZTCqpLNpxgYd6BXHyhvsGZQ6nxlL9upZq_pwA3TZXIp71dwSJidqbKc_3q1Mw3b29OwQ5sEcQ_T4GamV5lioHcSsaTYPeo56GpqqmLPkLSGb5bIZqzjcixfvOqCDaxw_JEJ75Ajc4IlZGfk6O0vR27q4P.brXNTGqseExY8qBS.GQMxY3DaEGTO304gNK7G4eVB4RMNsStG57pyZZbGimOIv5JVfW22Q3IWH7JERv_XufwJpQZIyEU0jdxtqCKUVjrMcTNQb82ArhCxrsEIaXhXMclbn3QhLuBZG.VRO.QW_0pUeYzg_8kTTYGA3AIuPfBmxGFTRb8KMWhmxzlGWFcwscuBQgFbeLUEl6hfTJd6qWVBeRD_I6q8NLZK0TV7DkTdeg4dLLwwhTTl6cx6SmAEndW3AhGhXAGuuo6D5gY7Rx9nQy5M8BPhfVtf96AWYxI3BcZxGxwEIdfEzOuv5J3XC4MN6CMLwcpkrkESRfHxPYQEz5.nQ8e7sGfofUy4P4sNJZLY6Fna43zfQWtlurqc4go8X6XEt5_xV1XLxQ.7Br4yWV_nhcrhCaCSudDSrpej1FxvUqKzH..1riVNzJL53VxcmQCuxaazSgCTJsOA.kO_h26BWfBPzONiVNYB4518GKjCTDAOY.risPejZpopgvNynLxYVVDD8Jri89Yf3pY5oMLzOKhIcnBj6D4id0AUwfRsGtA9s6zwPM6KvaMy0.3c3DgwP83J.HjYf2RQ8eiqkFJubpNqssU_mUyUWX3r6FwTQba2eztLP3txHWdrWBBtz3CVycrGrFAJaMx6wi_rEjgXcvw8pgZaxXz30.vITLhsZ4KTHCYrcKJmfooLWmNR8zr1oo4g2PkIRv1NSK6sEWmcSB382AbLZzEmCtLTfnX.GGMeYa.agryRX4U2uX0yLp0BXKjRr1vDKUE3yyBsVdBhHEZCk0zlKVGJApYCSJc.RCzB8VUJlyvHlyuNm5_Wdr5U5nTiefc31tXDRo4TyRDNlLS5jC1J.0XhITQa62amJnNOPmKGuKH_Abw1ghngtLczzpvOb0OUnwQ2jvYU2SZQS_8wLglnIPMYNI"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f80276f96b81d3';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\/4362507819?__cf_chl_rt_tk=2jVlZo2hBq9Z8rZDP9amo26JPlJPXwfCHDbvgRszQjM-1739147626-1.0.1.1-.gSYVdtZejhC22mbtcZ905jxby8lT3zb3A6uNeQqAqY" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>
Copyright © 2002-9 Sam Ruby, Mark Pilgrim, Joseph Walton, and Phil Ringnalda