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-affb81c1b.mit-edu.top/post/0586739412

  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,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMiIgaGVpZ2h0PSIzMiIgZmlsbD0ibm9uZSI+PHBhdGggZmlsbD0iI0IyMEYwMyIgZD0iTTE2IDNhMTMgMTMgMCAxIDAgMTMgMTNBMTMuMDE1IDEzLjAxNSAwIDAgMCAxNiAzbTAgMjRhMTEgMTEgMCAxIDEgMTEtMTEgMTEuMDEgMTEuMDEgMCAwIDEtMTEgMTEiLz48cGF0aCBmaWxsPSIjQjIwRjAzIiBkPSJNMTcuMDM4IDE4LjYxNUgxNC44N0wxNC41NjMgOS41aDIuNzgzem0tMS4wODQgMS40MjdxLjY2IDAgMS4wNTcuMzg4LjQwNy4zODkuNDA3Ljk5NCAwIC41OTYtLjQwNy45ODQtLjM5Ny4zOS0xLjA1Ny4zODktLjY1IDAtMS4wNTYtLjM4OS0uMzk4LS4zODktLjM5OC0uOTg0IDAtLjU5Ny4zOTgtLjk4NS40MDYtLjM5NyAxLjA1Ni0uMzk3Ii8+PC9zdmc+);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-affb81c1b.mit-edu.top",cType: 'managed',cRay: '90f371d91a091741',cH: 'Vw7cJw2jVpeCB7pcDP2q0DIL7EuoXKpPfy4Q2xMprz8-1739099759-1.2.1.1-KXYNgttvmLQti_9ZlVDV8vABrEPLBixgEztnflTuKj7V6PGoQJY7iLLj2MMGEu7k',cUPMDTk: "\/post\/0586739412?__cf_chl_tk=K1NysAMXHrxuE4loNJDNKvZLE7x8kcmfaa.Z2WL7.2o-1739099759-1.0.1.1-Je3Je4dGUdNBd.20ccdE3cB.YiCBiEZ8KIh06vY4Wqs",cFPWv: 'g',cITimeS: '1739099759',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0586739412?__cf_chl_f_tk=K1NysAMXHrxuE4loNJDNKvZLE7x8kcmfaa.Z2WL7.2o-1739099759-1.0.1.1-Je3Je4dGUdNBd.20ccdE3cB.YiCBiEZ8KIh06vY4Wqs",md: "U1xwovKYBnk6aq81VOPgAMrzxeukMH5SsWxa.A_P99Q-1739099759-1.2.1.1-QXIjXYhste2sxT4FZajlledhY3jMDMBdcgW7s2_k_eWrmPASGP4orySEJsCc464x5nrEeAfKlVgyWOGle2FDHOCtMduUjPineedkC283HnTOzKEQIIptqUSS.m.qOT6PrWWGaQpLiSzkplOWzK_2sRPohslJm7JxAuR_AiaJiaA8f.oKMXkfiBYsHhncpm5UAOtBj8NZERuW4oXUXktn1jLmDFrHGJ2kbc6YEROg5PN_Rvn8SpDGZ5kpoPvCGuFA1oXZlhDGEa83K9dkfqOOSqEMPryNoHOxgDWWROM9rgWKNKIiLHVNq7vS42GSHoL90KzijttBZaGof525LsT4pXIvb480jpPsC4SQDweSgfo_Mjm2CPNDIkpEfGbqohBzwEWCBxRQlI6PwMTnQ17mXWNQBvPfUg_rHMTWkzZKtm7KWWZBug6afFISPSaa0Afzl0.IQNANw2ImLs6Z8IcTWHyOjzS3S.E9Eaka0Jc3G5EM22lEqRAVkv4RwE_yKD6xQm_p_c31wE_H0fI6dY4eVi1SKVVq1M4YwkNGF2cbyaMc042Wrm.zrYHFhAPLEosemxhdy_IAL_Rmpc7gn0UXk9qKp2z5TiCQpr8W_Q1m2yiXHShdhs17Y7lrzdVou.uoS7dfcahesIS8WIZnfj9M0RuGmMBANmZQHaOUuwWdkUNm2BP3KGINGS_ideNvK1mfPfk1LODi8EHMKkATv8.siYCyQk6ji_Z1btlCH.DbkhY2SvLx_WB5As3FkH9CoiAJ2fxX3VnDeiGi7bEjDwbHB7y.2jcQyuZX7TbbKP5kuYae6Cxa6ASxpb8YGy3w4nBCwPR32nJkehCSOPFdijDx6rC.0XZW.JPkRIc5cvtGQTh1K0CBH7GB_3CN4neBmcrjR6ytUxcpc8bEUdhJuK8i1bZT9QVjqgPKFlD1b6HZ8srJSuZW2_8zy8YGmy02y_Fk9WVmGzJBJelC8F3CifaOLMhE8S92ELYZO9W82UmBmFaSvJ_mPHkOzctMOB6GVm0i11Fo_9BO3sBweuqXR6RJLHsAxl0_nyQKJJ2vEJ3OI_1bGhtCp8HIefu3aUbu7j_acjOvwy0XwJwJSHm8IU1KXd6JF93nVgk61JZJr.oQttKW8zhbyzE2Cj_2PyvWezU7cIUUgLoavbAb3MZxLqBJlVbXgvm_Ic0kOF0sPjutJUOYlN5OfG2SGs6DT_Ih1GmavTh4QlfYDjxiEL3.rI616uPn8Dgcl4vKUcFaoNfo1Vouo84L4ta45pZznITRm.eKG1gpqhgbFOfq80.gdBERVRE8o.sdoXx8p4IH866sf6uTKN1wBYo2s0wudZliA66p2qlyU4P6JkyLt1Foh0EWZjGMMKyZWHI1Xdy0B8ANshhasuFtBJ7u0LMTYYmr0oED4K7GOoldcMGnl3xrkrqT65u2iOLZbTAuuJC3rX8EqWrW1GxJfa5jA46ksGU4LJclP9ACf2nuXRrX8lwvjR.yaUhX9gxYroTJDoB3qRmGHS7XDmYdlCSZj9GiGNvVh0K13IgQjZyLLmgVbke0JR4MRWfA22vzJ50cAC3D92D_2oNeC06crc9w7oVt3fuxQU2JLq2zalKGCb.o_qr0nEo6T2DQtER2VkcNXYPb2CKCB.Yn.adRoUocC1NbGA1Egi0bAmxBKPNGVTbugaKLeh7fLoJ7LiPyPmfGV9GxpXyQPgToq5CCFDAZLlS39TzQrzA4BWEO.aFKujck2VWaDIvBZ571WIjlNTg_x_VLZsz2qf3xVV9rAOpWPbkeoJAeLDckdLPu._LDn9lq9wwdhWi6quxa3cjWJ36uZCHDk5huvWHZD9UMEV9Nv7ByKgdsvfzx8vCG1O__vnXa91ghVDLp8ZL1t09mfJ7TAQp8svlFOfFRkWM_r95wvzc.LjD1yGk8SBE5L.3ojOczZCUlpPhgZ6SND8tW7AOEZQH4E3F9bWPmQd6qCmuuh20VKagX5JChDWwsE9w7WKdyYuS4.tyb2VJSl95EVfGwyjWaqNIQvRYVvnZfCOTEBWy6iL_y_GWXmVjieDnEmcr7sfaQzFZD_O6Svba13FIpdIxsIbZxOygRBPtj6oLmYroc1GOHUCBRUSdXN0u3PpVtwxP6I9Zbh4NmZuHmBJLxCiTubCdyA55IW16SxryVdQzQyonBMNdWHa7woDUiQswt_kLbpTa7euFoS4sDQBUbGI9vy5irRpuwVfrwYNheb6KkgVHHWKus",mdrd: "hDPPH0jDV72Pl5pMyMy52yR9IIbGAggzxc_S9ohnmoo-1739099759-1.2.1.1-oal5KtRxms0dh68Cp4Hy8Z1Du2_NszZ0k7Mb8UHi1VQbRK6JOzY3VLrLAdu08mtRTAEUXFLhOX7WifpD.8bUrv9QFpc0M8rV5UIGis8oLTFq.oRbeSm42FuyBZjvM1Y5LB41xCjhH6MBfxXAfv9VG4Hjh5UZWXh0a3VIQJcTI9LqpCniJb7adKvl0EE9tF_U33gE0T56MquEPwIKNj3g6LXpi4xXhZzwNpyAYt5jbe664Pq9SFiXQzVPkkur8uWseQE_BAmkWAJOgBVpmp53GNNBo6mbMfazSCbRujN7C9D6daA6Y3mXEFc.LetYhL4CnKjmBnErjYij9k56NkAh23UKcP4Ppp2Ws8OIQs5sCAXvOUD.NPz.MknZuepgEwQZyVUdArdwJ7.GWYJ0wXmCGKlSU0gTUVGpPiZmuzzO7kPsle3yUO0aUszUM5LwjjJtpjXgG38yjOUbeDD9Q08iI_RaW6bkj1lO6LxJwOExYVmVRsN5wtiUxnJEsBLFxh0.TizquFjZGGnpetzqPXhVm5WcS1PQ8AGa_JI0wmd4.b1RS7U3duzQRJ2kZQ5gAm4jBWex3dNF_6LZObBII5CgJiBwufmSsHIXYrR3OAm1piyYIurf8yPxJln6cAbyufx6pZ9pgiYE8mmtICApTSNmG2Y.1shB6suBZiSsGjEH.MPp0yUT4gOtPB4vAy8SeJBeISblMlZt7B5nS2ykg65_Ocz0CmKzXvlfyK82P0wxq9LP59_tLptVj8ASg5PjRkl_5LbrKKjKSUf5S2yUZWmnyUChk2qij9R4_RXuEJ.WA0b45YFtIZw5gf90gadzwARC3t7hHgnWHi0E8mMG.7ihm4jln_dUDBkauK6G4pVwSl8y3Sy2864VLzk5BsnToT9vZvktrOjWG7jxtDEmwIJZsqWLEzZvp9y62a9NqDhKYNVaWOGKtWryBJJUoNtXqPaNXVDEuTjSKKS.iG.fs1jk.7AxbHU5x.2xj3cqPRi7JG3Yhju7_So_zsodBLLApWygNSCbNzJnpYH31Xawb0Lc5ivNZrEVR8heqH4ad231E0wi_OA8UB.QFnvbQNmPZo17cwAZa8HqgiBvs3XXZgEydgY2vUtEQLNBLGH0jxd381bePPttdf1H9burUPQLQHCy48HUi1CETB.L4hQFikCPXGkolIF1wfhvL_S3Dq8QlZfMe6_kKl0NsutuM4KZI_WA1agMeUGJbvyctkJrtP_UEMObgSBxPVjTjZ.ajfhUqL_Ukb4L_wQlg8v1Sadk33PqPLTYt9latJ9YcOPry56kbaYSj62kJuwb8.OqmPjRhx3Hz_JjKwMhZTTpt_Yq7mlWlMByYWvpllJvIqOJ3QN4g.MxTVDFnm8fpDK9rf5oHd5TVSNRl__q7aM9h5uWPswgUNJoBVHkdVTsx9Zpw2vh72kVwsor3gV1bBKmdqyJwY8oUInzCkkXcq8ZbRtfnJmk_9tJ2J96HxMEB7rlNtg0h9WGn1ChvpRJwVGGbkNAaeuFy9opvIcYknu_liDOEHHL8X4P8ueMw0doWx2Eg.YTt7Lg_pKNXOIWtWgFsQdlUkZ7LMFytxqpTo0Y8WX_j3hlw0HcXX9QrKy7ebx5sp_dq9hQ8jNhArTw3dlgZOZpCLyhYk8I8I_L7ecclnd_NgNjrE5PcSfEF0r5wnBbYrpLFHtw7CQnb36CDc48fFp49D04FBIMhVM0.t8kw1NP8D4J6GoSocLasCTKpjCeCWOm3JSq.XJJn0gEWMvyLehBwAXrjmRGG8WMJpkgeCM7pF09d_ABkAAFgfHeMJTm_nbQEA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f371d91a091741';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\/0586739412?__cf_chl_rt_tk=K1NysAMXHrxuE4loNJDNKvZLE7x8kcmfaa.Z2WL7.2o-1739099759-1.0.1.1-Je3Je4dGUdNBd.20ccdE3cB.YiCBiEZ8KIh06vY4Wqs" + 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