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-affjslsm1.mit-edu.top/post/3475210689

  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-affjslsm1.mit-edu.top",cType: 'managed',cRay: '90f43b6cc8da8018',cH: 'EHCwcwwyX6IiSjUhDb7SiMUOsYYHGR9oJ9fzbtMXfNI-1739108016-1.2.1.1-6EpTrY.vwvQLvRgQKZmRkq5QM1Z.JbJ1fdDZCjvwXNw0klXm8h20cZWw.kv3dlgL',cUPMDTk: "\/post\/3475210689?__cf_chl_tk=FAvoDJbmtE8u7tKD3T1wGYag4CFkRIrim_9UYRkorEg-1739108016-1.0.1.1-hLE5T_Nv70vMAaQ3cLzAz2nci4Aj_VZ6QTNkGS0YwAo",cFPWv: 'g',cITimeS: '1739108016',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/3475210689?__cf_chl_f_tk=FAvoDJbmtE8u7tKD3T1wGYag4CFkRIrim_9UYRkorEg-1739108016-1.0.1.1-hLE5T_Nv70vMAaQ3cLzAz2nci4Aj_VZ6QTNkGS0YwAo",md: "WzRSDJetnODJSl8_ADtwfyR2xtwQ5C_G9FY6F4WgIfU-1739108016-1.2.1.1-6Qj75ei4.8lQ.0S7EvUoEUJyH1YpZlEWaom8xzVoHdsikoHHBWDVcTmN8dUyiuxG9oSbGwI2UDnPLhs67tWsYjpUcW6LJArTEOn4RqL2V1f7_vd5bAI1OddjR0AncxFra7mmgWHgvbiyTbQ3bsyY7YtD7jMXhgfAjsnqyw3p30lR6LNGhU.9CHq86mTxSJw1CA1svuyZ2S2uUsdhZe6x0jDVPXfDibY6z0Nz2ypq1Az8NPzh0OxIGI8FZomdifqnDkB4vjlk.BteL_c7s.dRs5a3Q1xdowDs0NNFeVRDrOU.Q19vaCWAKrgoMpaX8ZUxeeuBNbt5fIz6bBREClqfsP3oZId80z8pP9l_gljssLC5kvtMpPEnKnGSt6Qhk6ylyG5RTxxRvtY2hWYx6VhI7ekQ8yxAJHTweQHLpbYy2aDYscHWgpjqdCJqUxuH6dFocRxhnBOdKPeKpwLosIxjjeZ2hP7gpD6qb.Os2U31ierpx8EbCQkIFYdUTJprS5frykFbugmQKT_cbmTY9e7N6wHNisRsw.QUqY4syEmnjY44qy78m6SgxGUYHEPmsMeycFPKZ6BZU3RclKEtFnkSXSSVudfc1_nHnAsvQj9VAKkymSPtSlyMlauv6XaYyltNg3dbwrVJR.FbnCFhceIrhAKvr3ZZJaYyg1Ve6sRn8UulEH3TmtToEkrSZRwzS7pVLGLWF0Mm7m7qrmK63Q_diew7RHpxMeUIIHhw1QBH3gbV0OCkIoLUsKfPwncx76XYNRF.n3ion5cYCgNoAjsCMIwWJYoHn7Ef.2JC7TQ7EazT3Ggtgz4G6M7gRVdnAnY8HdwyLw6Z0PxsDZNyyUHegGx93AjjAFNUy7YaIEH6idIBf2dL93o5N5PA9I_5I6lresaf6mH9pKKE2oHh0SWyt0qs7aVruRoT8RLHKRRMISO2.yoUuWp5ZuZAO8EoN3GvrjOerDA4oopTqgXBZW5hHqSzNePLdPP5ALh8lP4kmjs8qVagcmU9sEE.hM62Pp_BhXsHsnvcEYPFmsxfJMys9Rvk.lOKgLiNcgmTkKH8ikn4nglIa1kVN_DLECToI99idLx7Kp4Zm7U73.aZ7ClUxVVdWHhxU5SWfHsQcJbJfRw1mDnz27nTTSiioXh5h2SGKodUj8Eoyo9E433H1AOcINatNFSE7y5jrpNUg_MOgh.CAx55yeaEVp2fBDICsCHMGRYSLVnIAemnxSIubq4O5.TNVhjlkGdfQ3fHlz1V96OGaphcng0bReYBXs.rtPFxGhzC41VArUwwbbclSHhzjXdPDtpW70Gc9E5_rYRF2MLPerekicNF1IQGF8zqo1UbKHfcKHV_ZLeeDkbVFf4nPcpypLSKqMPxlCyk7aFnnHmicD21UW11dPWIkaWTG_6dSy58oP8OGwHr_Wk86dsYyzjZE2kTREtYWv2ATkrVmNc_f9JMgVjKU_Hclenj5jNgf2tYdqZyFePPXNpgSjxgSV7M3JvX2ki14_8BPdIWwz6EliEaigTCOdyyb2m5quOGziBL2M3nyvMuz5o92YPBvEEzJKQ8XzQ3jci.i2TqTksMdgVHhH5_KWqDNDbXuXBkMhQmprngeFBHIr_3qjchLPHCFOZimn04_32_hWhzKhW0i3SgYzd1nmgbgBQmPmLq.yM2xD6of.3TEUyBNxgTHYIW1VMc933RMh7Kr0NRvaSfsuhuPHDKqowwws.a7ao32AJkeZV6jyB1kNHJF709Kx4.3QXYR.4h3.vbpCNjh12lNTG4d833I7kgjwlkPxKMAdWB.7uvFnhms8KR2Bm2K0uC3DyNN6fvvoo3RJiAnpQJe6uLNUvcoJbs_FwMomG3DTDs_2HbmANYHRU2hf5uS81iQ_2_1BXqS3MflriZ2ebtOZmtaF7ug9R_ENvuYe8jCOkk5C3XZOTIdIVnnWdRzvN0HInHS7XkyyQ1s8d3eWovZkWaxKs5nwBJghAAcliMW7S4NXBvmYmMnms2cbb0KV2ubhCZvtzijVXZc8b3zIOF6wyIanLmPmwO4ugToqD9XUABM56y9Q28IJnYzYS2NhsXlVV.SJtMFIn9lJ7QGH.TTFyFghKr1YKF2TUOs.qpNZEvc.5PRElxQkZFu45Ncuz0ONNKkN0AHG_d6xZkj0wgzIRQjouy_ovtKtF9omJYvm40JoVlFT51DA4XgQ4ER_6VW3fxM.oFp00FspJOF34fatLOiTXWDfMoClkLv_d0",mdrd: "5bJUfu4H3pSSFBn9Q2V.nNZJBA9S7YFJ9DTV2pcTT4w-1739108016-1.2.1.1-ds2D5NlbbCiXphSJCFtWij9kBnyueQb_CO0IyzboaAdnA3TxnkhBcEf5FQY2Mz8dwoXkLXaQUV5c3wsojLJlGhJbkcCOmxTlhecmAq_2rHyGN5vhfj_wjTaeHaK1E5L2KJNynvTiDvsoZDSiHoW_16747VjYMi8r3Oza6dY9Hdmvh83_9qtbwknqyl.n52DCSVpUCz7SM08o53.3Dfw4e6lWkGwb0qg3nCdftqxV2OeSIboBy2ow24HTYHFAjWJKgdPsunBU3Pv1rmouFy.r9mow9XfVKsEeH5poiM4qXS1iisdww1FbdOREp3DGDzOs2LCHGR1I.QzGScUDi2uYCJtpWSde07pRldFfXz2vi3RjMtqA3WcLKBINX1jRRmudWcYTErXkBePBzGC__oNXqIij5AmNhRei7Wf_x0SMwwcEnriFGCKRSUzzIqKL2ClRq680.phychO5lzTkrZwiEbbgnq4Yn4YC8vW.YHylUS3gFY1UfynFtEofsNe_h2Rl5HLkjM6PbnFYxxqUvvu57YXukYZi6FGQdZvrlV9AMVG9TqcoTXojiU1iIXCEsAuoTTuZOKkNfMrwr_kWafLlmejOurtMXkA_s3gYPLcFZBIEXiyJ_3AH1iOnVE6H6XLKUXVPSSrYwWKYi3NXUN3IB_cngzMaELnYtzWcHpxAqpXLMqTjkv0VICrT6cDjMTJpKmtae7L7tZ8pwF62E60ex_ClpFtXv6EmEfvTiA7yf_SwX.nAGMMcvPpPsh5N_O0alzbuRTchdeyOQcw6jZreklMSTLyy.Y93d5VTwhoE1xYmZsN9OJLacwbtTTk47Av7Ek5JoLfhkMKlbsGJRgN5MsnY.Ddahp6U6mPrMpDdatAeSqQlS0r8cO.9EsU3WjrIfgyP8CIy0._gG3775SGKkX4bSYPvr6LaPmU.wgQ2e99AvUiHZ4_munDAAw8mC2zUrmclRuOZYTSR_Gp7Vpyt.r689gRCRua8YNb6AJG2k.BvNfD2GCzjC.JdbyEXNxoBp8HeFIFOAVcs35YhNnW2V9ekUl4bdtr9QpJX9_xkxL.uVbYpsQLzQLNMsM5sjoH1KwTpPRm2Cc1JcZ75iQ1r88jUQusbT6NHoqwT_nKKfjYNfEVyAfFPSOWofOy1_eqQVljH.9ZPMz9PaQjqVdGyym_nS.clSWCwtixxNY52hRie_ewcVInSRJEX1kxCxJ2bnkfnyvVcIepoNePUK6yiO.U4TAJgKsaHXizbs_t0CF.m6uAI8B6jm_X_.f127l1kJADmAQysqxOVu9_HKyEr3PsOzJfcU6BzS8F4k.5wFl6DS84STou2.kPt6rg_UiSOWTa3xss14KNGcy40HFq4Vsxo.jsVQU30ZO_Sn7TOYL9hnSc6pBAZSh4Td9bkseIcQ8wy5fE77OXJet_07B_mr7yvA0ISxtDDnvZa_BSnQ4UIrpnvH6RVCNdEWzdcEO_sFrDSk8XR79wUtEfqJYeKAKl8f2V4JNSifhY_HMX8A6kDfUseYPDqIn8BwtBKAVw5sIMTFPKvE0YA_0KPc_tCmxRhir5bWWZ4qYQdQxoLY4E_0MrHBcmcjSUsMefXaw4jTm2KvDE.dJD9yacmmaNQe1DsLkcPe3ce9iVoVzpWUp2Sbm9C.6wYfS1JO36UYTNsG1G35wvcr6ZSsvjsCn3wck8_u1tC8gyH9YwgBZ64bv50VN9Q9c_x8juoOvIUFYBt7YYq3OiZzML7wnprk8tY7E9cnzPGglKPW1ZkPOrdJDLB767d0hKGclHUOsIQI6Zne01klt1pIV0.ECC4xL_4Tw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f43b6cc8da8018';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\/3475210689?__cf_chl_rt_tk=FAvoDJbmtE8u7tKD3T1wGYag4CFkRIrim_9UYRkorEg-1739108016-1.0.1.1-hLE5T_Nv70vMAaQ3cLzAz2nci4Aj_VZ6QTNkGS0YwAo" + 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