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-187109865028.mit-edu.top/post/4970683125

  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-187109865028.mit-edu.top",cType: 'managed',cRay: '90f69d0a9a09c957',cH: '4inpXtrG3khEfngopit2g99Al3fn3LlUQjuwKWduClw-1739132986-1.2.1.1-Pkqo_7wNvXOZyV2XM1vbU3PDxr2R7iTSbXktRSYSdn115hezdC_.DtwbEbweGYMd',cUPMDTk: "\/post\/4970683125?__cf_chl_tk=k2M32uJ8ZQmwRAtWZnmNYRR3DI5STHIx4Zzfxx5iu8Y-1739132986-1.0.1.1-FN6iaSNIiLvsq1WaVx.pAj2VAM3YDBu74VoozmaLo5o",cFPWv: 'g',cITimeS: '1739132986',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4970683125?__cf_chl_f_tk=k2M32uJ8ZQmwRAtWZnmNYRR3DI5STHIx4Zzfxx5iu8Y-1739132986-1.0.1.1-FN6iaSNIiLvsq1WaVx.pAj2VAM3YDBu74VoozmaLo5o",md: "guPDVNYfFOaD5gsyKtrwuryBAZjNkOXceBOYwW_mvKA-1739132986-1.2.1.1-ylqqpAn8Bsx5k4J7WfAb19PuDBXKh6Zv9H64w2KmLrvawdKm4RW0GMr.ZfWofQdCS3eX4obrbiA_2m7DcpqzubxdlY4HuBQx_vj_Ef6Nd.5wptpsMGJI4CE.DbwVcwIf8zi6dOSq8Yj5.oO6lTKARBzF_F_RRhN4fQiG8D1Ij8ni2exUoxHCNSbKn4DATDu0W_GJWiN5g6bSIGlkrsGDpUVYzaV4q_gVyiIbpOHLxNSd5gauyjL7mqb_hO6Ok9T6283fi53NM4qqyqoSY9I0i32Pf.mccWkXzNwv24vBsQZQ0ULejkKfs9HtXpMJ4o7MdELPYECrCgKIBYhPGdLWcyMyY8RX62ZPlJIEkwKZuGUyZuizQNcjkRMVlGiYU1p8WuzjONNgOEIQ1b_y62BW7FM7BukIoigs8t0DDE0z0hqMKDj2WJA3WU4rHW1jC1vjhoxSoOBdeoROjmjkw4VmwOeeJSZ_fAKNUkAkQiHU3ORitcRAfyYq1zRKRViESTaKNsrEuw9DiBIWcoK4_d3NKYcqxBok_uRVkBuodq9CiQTu5Clqzc5Xn_aICTnCPhqYMKgJjZ64EOwq9Jbvm_80ArTZf5JLlzU6D1hh_UMqMwdPY7tvXVisliOPeHY1BpDF1mOiEItn7_8a9oxz0EA_NLJJOLJobmHSOlevoO6ofe4Gv_T9OSCG0jZsx.SNwmUr1Pj2cvcwnJmAxiYQARsY1arQh7Av3Q42YdCDGgxs.0T2tbIWvFoWgZ.GcWJ7wa48GLQs3Voa7n4gQGPnlOl9OCRFrd.3ZeNST78eKRGtuM2zjNtfmdnI4fqgomDpopZeWqyhECHJthEZh4O6YGELdwzzqrdO2dpVKq92IGm3bmiXvvvixRJoZn.Svr19j9qV5P0aWjOLXooDirI8zLggv2c3mbkZwBTFf4GhwO9Gl39m.3bhOtKrFcvWETZR26Ej11B56td548CxEWasNye0UlKgzmocxCJ_WnCOm3cdjnDcC4nIZfNpqxepSKV6lLoXZp1f37.JK.MGOvBhMbtoA8TAlUXxys5qmX48hGFxqoSGAGhSO60P5Fyp_ABdiLD8Q1.emWSVjRuHpnfBorImCqMRMea40q_jUtQYcmlAaEkOV5w2OhHjQkNe_9oFYV6jGrxOilVlfZdgXNpSjwPvW_3ID4MzwMK1NMsyRhbgPwpN6jzZvnR_8fwlw89N2uY6ewuwRs63UPpgXCz3H5Nqvu.clxTfIunmNXniqr4KR6L88WplueR2vYaBfaJc82l6bWoDVg_5eDrBEVYJq4YhZQ4wFjQiBlozYs1ujkLx2lgWqHmJ9W1fF4xVJmwNujeyD_cJpYRD98buLp5IcfSwTKWwOMVqdVMPZXFQKS7w.FS4O0B2CD7iwlY.5.D.pJLpPq4Hz74aU2yo.HIpKy9iU.WkNJGCuszQm1tKc2fQ5RBr9Vl12gtXZefpM6Yspw3muznsQ0IEHa3KJC8i0EJ.LMdqiOzz.GdUQoK6o5onb1uiKJgUZngtDyx.k0TI8PKRuPmxtmNSvByL3zZhMY97pERw4KpCLrQROmh21wzE124yEMSotQqgaT4KXVO1Une8BunSbPb09ukAnSlUH8JH5hCeOQcLlpSE4Clzxll000jyrYQ9hPaW2rJdhUoSzTbMAmNc0oezrZe95RO0erWBT6ioqNw14d2b8d_ktge7mV4U2mrHMeDDIAmA8oq09TlhQ_PVJL9gqFi5WgiEk9_VHKm798tS3eXkbWe4aZ1vyQqUsrkiSYLUTXctA8YJdbNgNgFYyqb8FcOcvC.xDfL1ynhpnmhbz6MoQtnNmfUSZ3r24vbWGbg7LRQkOaDu3mZO1W8K5wGiQpB5hKkdv93Lhpz06KvOf_mUDxzPRXwm8usccMw5Z8BraK8dF56vTnpo83uKATvMFXuLt.dRV.SiWJmpiZA2PnIX9Hk4rUyp4aFlmNQE7_TJRljYULpYRi8kd.geRy3dHA51bcoEw9Hth84iSqmShQ098ShxKn5gzgrSdheceQd4S10HElFShDX9_jteRkq7P1_3cvI_yncK58k9Dq2ViEWUjiQvzd5HFMIAdQqOvuQQRUJgKldKLijXbg12lT90LYJ_LlZmAbsDmdeiUZ2unXE8KHoBS7coYQP3HxgGcbNMwdYsGScuzZSldJmMBNgmBm0pzwInmdu5MRx_jqEY4NUStJCbuaJWZmkb3dak8NL.kKeuMi.tzNAZ",mdrd: "p9tL269q8w7XtGXHAVwPvwDI21TqAi5axuCtHFrf1d0-1739132986-1.2.1.1-ydhTUYahf_1C0LQD7O97RwXq0crHZ1lSyH9z_BkOhtTXchaKHirf8Kc50OaywmuxDYCUmWAc11QzjqXLl9VxL8nLMYm8fwEXKF2DDhhwPTvNYc1DJJSWAF8OwQWev0z.mIZGqTx9jNwYI7oehktVYpeULM7GBIOHV49i_cw6IBMhgIlv_E7bHWOAT8PvoaveLl9Qycq_q2_Ull.crHNu49WDnJfBmT_TX.CMfaVTierXOEpnIpodETpkdr7RWA.UgHoFBvDO6q9zdqGpjBH.DBOBjlhFWBVmjz6nFoRc7vzzROuxJzM5uZdKWEB_3KPS3fV8jNR1WAeeGwVQEKy0VobUCRADahlibc88QN3McbU4I1xzCP3drvDAZzZ3QfZ_FAKHUg6wDU9ixqq6hqQT3uUPN7q5_kZzXiqM_WvHDmEoR7k5CU.nMC1E9y1Lo3QKxYebnQrrX6ghXhfBfVZ0M5RtYnW2dJylYjsgLrDtHBaoQbM7ZxuRsyPg4J3YPuJnRhHauQKhs0Rr_MT0c3BHEw509RYF8i6_e93kTb7t6OdrZHPHJDIZMhxXoT5uWh_haI6W7byM02KjX65zcH0z9onoxj48gk2rUOZPtpC7HC_6pH8GeDk66RIGYaH4EYFEXRxzpmC7yntgddQ9jaKGmeukzJ0M40yNTrZO2_8o1_5g6TUTsiEJ9mBnfck6E3pcaVKUCN04SQqgv2xXrR.blHrWstOlBqhozWATTSK07kqLCS_nw_UaFPWLpyjec9XuKRixCoQaIDH9WHsTPqb4TbRAY1uxqWyXmSrdJ_fBIYzvkCcCiq3dPaH9Bb7MeH1Y_eN7bKsryp.5dzvzOxIaBrzr5zGJAwx03aK97jDrjUZ7BD4FniMrNVak5ETMJmirDXxbsGAz1RyQM.tIjwDPPVhyQnCW_moQ32eLVevAukNinr__oNvWn9._idus5IA5N5qefyyIVLTqISE46PYp1qufQDvjQ.CSiJ8_jF4.7VQ04vL4RHYjdNjcNdVTmkIsNRSpmII_VO0YjTp8e1dR5Muzh5SPh2za9EbpjhEv.IkJUFsUz.905XPIos5bEC3AYhgROmWj6HigRKj7ozPMr5j9hIz44.6SWpD8NTKAfO0NRHg10xDKW9Ra7CGgUKyNPEmccU3lcJtpoAIO1_nXVl8Raejzol4iVJbnbLR9NGkmn0ts5qMZqxGiEfK4fAWGV0vP3T6MDfwfsniBP3iVHveJl78s1b8yk3o32wowAHDTdRjnJpHUwlEfaOFOq6Z760oRQUaoH4oVr3fkCFrzlPn2q.tjdZFcl.M1bBdUCtnl94yj3rh0EtZi7jhkMyxWYfPli3CP2zDkrW8kLEGlC0Ca2u2WBWf5ScQZ8vQZr94hfAq2v78ID5M8a1lEoo2WIJuFBb9YCM4wagYL8CddZULhjucnMyqGZ7Ahbbz6_HPy2rqf7ju.qL8eH7YJcEGtXdduuOCP2Z8ObIoeudF2pHVwxKxRCSPH81kWRvxeMuGYnZZiYzibXA34BC1nvhYI4XUSTxHdGZ1u03YWJQHbLuwC0tZYPK0UhLXssfhrK_YxYxXox5hJa.hx9E_EJQJJxfZXDdXoWkuiu5_PNusZ8evVvO5PDaT.IsfLLtD01BZmk2zMy8sqD.j1nweGmD_cGfr7IHdsSlObHCQ7VsOc.v_lLmq7dbHyRkFtTZ82P4oymNZuyNG1uFsNF.9s721Sq4WuxmE56xU6ecfU0xO4xKt73ZXh876ktf4glcKnc6od0bFIuxf5sijLsk9xEbGKEB8ldQ9PG0UfT05KnGCUht6.Ix6qy3rdUWn5u1p3z4w"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f69d0a9a09c957';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\/4970683125?__cf_chl_rt_tk=k2M32uJ8ZQmwRAtWZnmNYRR3DI5STHIx4Zzfxx5iu8Y-1739132986-1.0.1.1-FN6iaSNIiLvsq1WaVx.pAj2VAM3YDBu74VoozmaLo5o" + 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