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-334910795169.mit-edu.top/post/1470258639

  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-334910795169.mit-edu.top",cType: 'managed',cRay: '90fb04bddf390625',cH: 'DSQBXomDN40RjeQ37RgRsk.DI5u2bWDchnd7d0JC9EQ-1739179176-1.2.1.1-ADQjm1Vb43HRIGwpfNSD2kLFnrDkT00KqGaJRYT9vtXRJWCAL1mgBfYHUrDqBge_',cUPMDTk: "\/post\/1470258639?__cf_chl_tk=ms0C3ksBWJAXulA2VORkgNEf2x73IgiRKmmZWeto2S8-1739179176-1.0.1.1-QausPoZ_l2Fa9vVn7P0CVuUt_6ToTQ4KoK1R4gwAnM4",cFPWv: 'g',cITimeS: '1739179176',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1470258639?__cf_chl_f_tk=ms0C3ksBWJAXulA2VORkgNEf2x73IgiRKmmZWeto2S8-1739179176-1.0.1.1-QausPoZ_l2Fa9vVn7P0CVuUt_6ToTQ4KoK1R4gwAnM4",md: "Ud3rtlFSo4onof4avCbNC7tSybgcvNCu8w3BcQYpsbk-1739179176-1.2.1.1-e5qeD_8obVglefrCPMLOFphNzI_FyHcVkuJTVPe10HkHrekoAXIum_5dd3wk50j1utEXxMn_ZJjYPxIeMAsOnHyczkd8c2NsV9cCKgcXEmyM56NQA8G6U3kobr6yYNThURgolPY2hps_Nswpk45tkMN4KJumZiIwq5tY5yXYHiV2mZ.ipwRxc0TzpK8i.Hya3RvO7soxnbx.tZlk2nmOawHSA6B2FYVOCqf2uxcom5misLdbf5s2_AF2A4Nr4ts5LTe3ilrHwYF.s7T0Xy64t3c22hovHPPxL575QAQ5BcBHgsvb1RI69w4XocQyu.tlcPzUt1JDEcKFaTFOlVGVEYUt.9.8C5GcX3mxW6JkgBFsXHhafTYsqUy8A0XMj8x6gcsag7Hkr49byjzp.bJxFMnjliL69Rs7e7tPJPbwP3VbfhrBRL0KgGNypE_B5EjLocFY51ISlhF2ZViYoQF8skZTW3y_dAg7lbx5ClGmHYne.9mnkAua.uPUkpQS9luUB8WRVMQWa81C._XliaVtOsjwAcsD77jy20r3nv0MkRYfx_S5aj2jY5U0PXV2tfCHsaZrlXLQe4pVmYhszwp.hvU71EASN8MTeg79.YcmMqbES7P3yln1i9nzEXe_WK2On4il2M4fPqvMCOL3fyxxYfqXLNx8jBAyNjv9tSDBQr63He._MONrSbKwGtdi5B0Sy11V1Juhh5YhUChDt6g1YqTOr8qkM_UHxYbBSjN2N8kKjzbqs3I2k5aPVDoQ4MZFwOUyCtTe2hpEKJ0jGFvSwaEF5F2ZCmS18TkOzOINs9t55luV3DrMsaVIJzJ1iB2sZxwuYojPiWYDftLLbJVDP3Pvy2go9Vv2HL1eiarmnVDmmbGN3Dk_g0PnRDiQYwbRxQsV.B78t6aGp2HssCU8EUlA0.elqQnnaCcQjqiw0bOpiNbFE9dH0mJoSlEi6pZWu8EMhYMMtG8MNzwviKfJYC0Sf_JjkiWKAZgi7LootnIRoD8ORoqRUlTiukCfqY1q5qHbEZX51J3gqCP7PTZmarmOAO_Lt0G0hec4OvIJkhzJNxbP4QuqdVCGQBwo.T6qxP_Uqix1Fp1oKJihOyKu0rXVFA92ksj04hQc40GSKXbabzifMBtI.k8GCLtMI_1Wp.LhRzM8yo652y_QriP6Yerc2vFn35.OSGj7W4ZDIAMc4naST0jqzy5NEKPfnkfvPgija9NeIkAE3KoQVtF6PkCYDhunY0oxPQVyPlDFsaMJk.jFNMa8k5V4U.lUvXWxzsl2qrtkyswKBMNZ2b34JonkMOhRdyPpidzzrKEouEIbtddzVbanP7P7PKUcjci3nsWLo96AlKz9n.gbDEorFtrLA9p4iPYtuNlAHU60c7_2Lf6urOl1ksQHhOMl7.n60rmv2PZawD.gpkqnNeScSEYL5lGUE0Yn8J0JDhRsvd6M_JgnkdLfq2.BzMbQIciYxSi_zO71KmEE9nbrvavigc2YgbaZc6nDnMHjvCQKl8ol9hjKfD3opINMNMjkZZL0i_fsPjBEhgIJMGM9S7fduUz2bDcRqzzXH5YBuTMfYVG3I7qdjST9Lo1wwp.JsbRZRX5Lc6j1JYuCFDuAdzM8Nat9nCnPlVJmthgRm82dp0gaQJj0G0Y3CKCnqJyEwnc_DJrSLMOXHxkLVTeMUezN8FCiTCI16iAHjMhNamG557U7tDL9iPjqczHu9Q3P62AWD_Htcw4CEQA3pXi3QELb8vE.yj_2.343fXEAl8AGyHEetYuXW2yOfK2hBYou94n8t3A25dKfI6Rd2iqAcXRauHhtLJAyqrIKzqEJHLW7akShzqu.9JpvROYUg.alxeEdSusqPM_g.DvCTXrlJqZDC9CnuYGsljzEsH7NUIr3fVIb6ycbLMl1UyHlSVHPvC25c3JDu61EusiEiL3mZYN.yDlp33x89Ay09_YCCZjfQgL6pQh_fIr4KJ6BQaNjHlr7EMUrGa55h345wVZ7.lIR2AnWDXgwf2R7jeaRe11Qd4vSixnxSzKoKSg86xl5eAXszdDCN4EYBmQF42zgfQyKxEd7gS4FR8J_NS3aZYN2HZhF0oYWqjiXKlYoghxKKSA3yBbt.1d3pMy7dLdsONhf1ZHQs_NFXm18jty.mZmxLmp7eYn04OchC8yCZQrKkfSSp8vrhL2DIjJSlmCiesmesXjWitOb.LLxKPwOO25O9z9B5d2gZRBR1yTgLNafN9hJ",mdrd: "dVAqhvzianN6d6rG2cgsVHQUZ._ZYl3nDHdX80s8ENQ-1739179176-1.2.1.1-7y6iVCyiSWE9P_j6UrKIwaNGlaDcWhIlQ8I7WEi9Qcux3p_KbdmqV4ydv7ohMw4NYx7wmQB3xXxkOSTNLnMXGmPYbTts1PqufvRx.ALxuWwSwT.DSmlSvYMb_KLLb.tUFuxajqDnLhHf8KPtfTwi5jxbS2obQ3dzOOgaML0hl8nWZY08qaCyvjAPkINCpjEPCjeHyjM9ZKLyEmpERkL7u8tnhsA5ejGLHcH7MhYOAcBfdc_LtWkYFSOyOhL43T62znbOYJqyD3972l3CIcBuOxyL8NyU46.7MKMkUzIxHXrGUADZ4lmITkU0cYZOVmFQ5IQsTIlKQWS5YT2rW6wGtn52pHsCvE2QdUQmpkDbjPojwdm4a204MqLQbnF77VTyQoGitKvESoSimHI3uSLaMJQBtcKNavAEiV0U0MmefHVz3Y_ZV0ne4.fCpZoWT3PLd0kNicRB9HN8LlU3QdGcKSDxt0njU_xQ7OjNrC7hmE3huP5CZHSaYYtU2Vd90hj1.7TMbgvKN1cndqK0hIHZo10l6Cjj.tvVFiJQcYtZg.lnvbaigPtwUdB_QMx8ozY.V633atfVa0_DeZ3Xxya2KO_es9nPomKX59jAJyX49OvgdwnAqG9xEP4yqUVlraB81b4ELbhFQzxW1vutd9QQPVqWO0DJmi2Po9z5sRp4R5gDHcnx_S3r5ZOYwT_0rWBIf2x2Aune4YlPpoJjiib0Ja4OmhwI3ESjRoCXOJhklnQUbzm0wW_QpGUC29htkDE0v1MrH3dE4HBkrjPnfu4fUPR6VpsP7QIpwgCeIZEhtLVWUi4futTxpSGwuy7prqfSXxXhMSTR8bXS_y6WCbqT0KosvpQQz03tv3ThfsriJuqU4l17X4Zge9lrmQ8NbQvbAUPb05EF0IkCe8grpPRP6wedvVkwGzVaBJ3ekVbYyglei2mWl3jm0GXack5W32R5An8k7YOA6z8foHab13siOVHhynGTLbnKic3QY48wYynMW5tNbv_nVNyUXIeJTRxlkTjCg14_CozMqBAJTmCEpF572dOYPmR4rPg49Of.AzfFMzNBFKGuKImJTz9GtddwhRYW5rV3DT5MX.u4w4DUor69O1XLVfPnjyLa_G95XsYTetMxpdKd.g3FUF3E._pfu62SHawFoHwNm3J5ARoBgZScgbWYw92NOjOsjt1FbQLY3EVDo01xbZH5jh1yMbwT8UBqznS.47FVi1YDxHzEQjZ9dazChY_J8g6Q5EM8NqtiOY.99iCNoMPOEdE1PIEOIcYWmPrNBbwqLPxKW5GkIP54afxoLjfMV_lkTPDPi4XoN7NSPps10ywK59XMIrt40gonK31RwEhzSyqZOVxEZNOS26QTiA2uRwFgzi.XwW8zmfZEioB6fSkYf4LLEAksBMPExgurjMRUIKjW9GO7.oLm4weAkeuqRZ84sIc8o_53PJDeXiT5iQIHM_SXCvknvmCxFoukKPHCDiZty5kDboVI6MzC4.c3pBoBgOK30gJveTeN7GZe2VR7QEDIyfL.NTcTTtSL2EDpqJweTcBqErsPGUtr4jGD78iOWqAqnInlu8iBxrR77zaT.AngC88P3.k8DJZk4wcLerFe_xC_8LPNx6hyIq8aCGvavGJfYYlhWfj7AJrrRvbdvlUsAJA69DIRfOZwo43xeaa0frKpu5eRPKI9No8tCSn6QFytP.HnEbFdy3rjJPNeH3PbraJ7daiqVAWVVDMwZYcDZ.DR9moKNOU1grhYAd_PgSGyX4Mn8oHjpFHZa1jVWkL1k5a3EFt.Nqhm6fFIw7zT0g98Yw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fb04bddf390625';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\/1470258639?__cf_chl_rt_tk=ms0C3ksBWJAXulA2VORkgNEf2x73IgiRKmmZWeto2S8-1739179176-1.0.1.1-QausPoZ_l2Fa9vVn7P0CVuUt_6ToTQ4KoK1R4gwAnM4" + 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