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-489910187427.mit-edu.top/post/1362785094

  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-489910187427.mit-edu.top",cType: 'managed',cRay: '911044620a96c56e',cH: 'yoZwWj3EH7eLeyBJoTj60wJdUyzXUCXJsZrodv4ku10-1739401984-1.2.1.1-Zhyar9omWdGnWei_vr98hmN5ZzvNnsKsPM2UbXweN5Z5hzChfqDghznmtWORxmZn',cUPMDTk: "\/post\/1362785094?__cf_chl_tk=ucXHoukOomM8CFJ_x3DiKL0h2FrVWiDZIgLRUfYQq70-1739401984-1.0.1.1-wEswvFjzguCtS.thOjajb3qXMyNlv3tS2wRRHpen8UU",cFPWv: 'b',cITimeS: '1739401984',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1362785094?__cf_chl_f_tk=ucXHoukOomM8CFJ_x3DiKL0h2FrVWiDZIgLRUfYQq70-1739401984-1.0.1.1-wEswvFjzguCtS.thOjajb3qXMyNlv3tS2wRRHpen8UU",md: "a4VHZN5JAcAgtrZm7CUOlBNBMqPKmmg3kN721KMU9Fs-1739401984-1.2.1.1-5CEb8TebN0_5.cFYeTut16iMI6d.VRTvb.k7N463wxSCRPgm7WgxEvHQ6fnfi29iI8FLqiaI7viRC1kGJ_u.Nk2tLhyxXERsGZwwOVuf01n.LMqT.0YrQLih87pWmTZ0_6d_hHf3vHYtvlEe.pOU9EtEWu7NR6fvzi31YvBboZtjTu891CbAxvgw4YHxvjovlNRnGnD9It2X1k9vuYR2ZtnNvpii5fR.ch2Nzrr7ahp8mdZNI5Nt8DV.etJyo70SbpkC5Kd7fuCeHnsPKiDCOS8UrLO18SwYp3sVtpJ9TGhgSejCRv9h5o.XHEaUKFMvGSN0qSfQSphHyl_aZzpzskVANHpLwM.N3J5VbzK_oG7ZYpUA6gKbizKQz3gUR3dgPfHygbTNGvdPkl7V7pTeju9J7OSPecr8Vh6zVBEyth574kZuT1mWGaf89uLLAumdAw2Gspm7MVjQ6KpySSu1JlSbPmGry4qI4pbSTpB7r7mbfbq2_otWdlJO1Hpdi9cN_IT7dXzi4Fyn8GpsUBP2PuobQOT0Z.udZ0pLvqzCDAgKWzX8FprOXsFuLfAnTY2LTkF0ybdzaejgXPiCHE9T2xJShljvCEQNE6YGsbTv_lW2xUloMd.QBufRqH0Fq6sutIT5Vl903oYBxnS4kEW4xAFsGUM9yS.SYqNxKNECGAlaMiLOlD.TDM4ifr6vCI9cbcbkX1B1xyM_hHhgOsA4aP3CqhmkI05iC3pQ3IzN0QExpYFCjxs8pcr9X5.1Fcfpnm7a_OPHLremdkjyl1U1QSutuBnK9hf4QTMCfLfmtJwo1KPT8QVppykBsLX5U33GQjFgTMJZ3y.gegAqC8_qVQ8UA7uNHpKiD3fN5neBgMTCYs1Pzpn00jMztAgMvcjODRfKQ_YL65_jdZY2EYqQHjG7HgGovoD9IaemxPjbZ4aF84KLwm47_l1EVd_uDVj.v4Ctto7tb1ensocCIiu39J2eo00W1XST9LLguynfH1uWhDIPLrKk.EQfMtzbrnpA6wjrupjc7StU2oFX7Tvd3bvLn1dQoTTjxXF9LSRLWLDSd0YUbP1OBJS4OKexYwy9gsVW0zqhaN3fjyQy9bKiQLNFPxgxqksDGGa5cE8UsnwDRR_foeNpyNpgIc2J2RgR3GN8B7kZHQrwHNLVOVMqYwxJxcVUaN42Eqh6un5XkkFRRsB6u7rAYKXLsvr34oy_ZVZT.k3JV70vyXlqxer4cOWbvX25uMQ8r5tDrZzRFQcCeNV40ygoeZGZBXNB28VkUb.ZSu754ZANlK8JRXkx4k_MnIbAFkoafHv8kPIjBagJU1tXoV66Jt3mUXQ5_a8.lRqFwka68yJihSJHuKnhJCvfBUkyNbml4WIV1TgyMglaSvZOttB1c7UzzzRDWZtgiEQnX7RoxVTqueZWDHAHfQDojK.aFYniBbIZCB4PK0MM4HCAxvrnCL7uR2gch8BYldhz2D8kSKV2KVazzbNIMf_.GQbBN.o9o5JBlo8e0L0Tzavo5lgnZdjJPlCYj2_BjwGQTKmnk8kOO3i2ZEypAq_LuP4fQc2obQAhrOxCrj_I6jTopAF.jqk6Zp7cdZhjUoBe5mxIfCoj5poDFMF_.JV4cyWqQAV8aKLCymtEkViruHmPlIf0zg3CNduqRQcbLFA6qq8AWK71vbYVBmJ.PYAbFpgC36_.BCWA3p84dmpY5KwJIdlib0QF7yel3RboQP_60.cDxXD3HE_4XmJA7IskygHx28b9nYRUkXbxrAdyju9D1K_lH_Q6hiUCyuKRZyjgdY4cdnIPIniSKUC6IYeLVKveQh1cxwmR6CpU2AdHMC7sB113v.c8Q8G62DX1nkgmir.wEVGYF_0NX4Z.1qqLNFODsdqUdXNrnBsvudZ3HscgjTNoJO7PYdc.9Ua0Cxyd3GmN0r9gDGhZlfRuUUMd8Dds5FMpO72.s05BoL5fJWhWv_9Ky.oUvYambODy75z39TC7WfTMuX0zInbXoYsWLxfp_iQ5dueRmQsDPl9FHD9zKYPoEbr4RgGzPL_.MCcH9lSvhiynqQFGVWWm8hyL0a1oKpjmTdY0rd77kHifRj.9b4O44OU7EdRauKxjXNbj1wQO.VR41xdEvmaesZqjJRwDJVkVLExAtfawQ7oEVtymTEw3r0J0uFd2Va1.iC0K0wVqV4.78etm09M5A2w5RkF4htp00H80UYk2pmrDP__M67lmrLuASNsX90EN",mdrd: ".Tc5Vh6CYgv35uUkSKyKKbuM3TCxPmLYZahTByLGK8s-1739401984-1.2.1.1-kzlww6KMNINGFtvjZOWBUcqW2tNQ63epGa55GxADJkbyueEmOcB2Pzz36fwDn9_ahVzRaaAmTHQq7AHOROEzlGR5QOFjrmaozWDd.aFQ4xL5uX.gLxod8bmyBvk7n9bZzFVYjXiJ9Y1BmDVizKQsMtnSF10QX6OsoBd8ONxdoxuAZy8af5hEsDXfd4Itd0GFzlunTrtYn5SDQX2e0D.S0AK4cDadpGO1fsBymLQnXKOXpk6XjgofG8j29.zTcNX7GXyKsNTD0Ww34kL74TXQ8OaC9E6P5zdn88DNgGPXgovBpG71VAyn2cn7X6GBEHxHwIf..Y0xpI1ZfFUe_iZpg_JfuBKYUjhrDlpJ83vtfj7n3NnBuFILJR7mglPvTKE7KcBhylL64E2e1NEe4QVCnGMfGgtbbUK0KjeqE3ULAX3oupQzIMqM4pDeXPO1keeB2uJ7okVVOnV5cnc5qDUVOMw0Mo_ne5No2s5HpzVR_2CAGH.uissNKhntxS6__4HIxSktt1gN1Amtx6XAyyJCjeP_FIxNrT1x1NipCjOI0XCG.APutmZhDdpbqoVJkTZpOSbZINxM7TvrTLJqm8nzGOa1JCAtOBm35k8dbDct6Nq4YXhBpkxGrUbCLUtk4eRgWCfCBlMPhx4kj6jcBkN9rw2f0xk4zluPN37D.Rfb9_fwHoV_yElcAhDituoJMpZfo0C8q9sPGWciv6JKwh3ckw73GZYlkDia_yy_kwKRGLOhbDbxUktF.QMbUBw7sMXr0phOnsRO2O14p5Rd49tO7FOLOWo7pFbGUNY__3y45s.uPJXWpvkd1eUoPISCVN8MI8ADSMvGzai09TuljyIPUVQwtLrkRQjSkyhdY5vScKkqILmrxCLJc6mTgAsBmCz0zBTw3YYzkvIE2gZwmJkQGKbfs3EZURjYh_JKmscQMh544HDyP4YTwSqk_2_PVHPpQkvhMWMFk_gqEqA.IW.gfyDdzpiUT03ySwT9my48eD1.HjwASCIVPEP2jX5A2FEjvlRvMYSDaMpNYj4uRw7LBghvrZ7kt0RghoWGwZkRuNwx4kXekj0IHlxA1n0hLlFSMZsQWLfLAqL4gXSjDJS8mP1j8C9qwOqsSZj8t6icNgI8MjrVjkIgvPum1Qs_shcfWIZJU1t.sxdCjWqLirfcI2VuFDsb_qLMXWQ6oDtVZI2FEx6TlbZ21hE4pTENt3NBq86Mn9vKZCP7W40MYvQTR6YYIFmVn1EGPZKrWOlOweunSDK1giVO86WrdvHPrrbkOJByex3QauqxR.wL9tj0oTxkR3xVcvc1gq.8eMFYeoCRs7KfBenKyYchgVOyM0NXtNXMX1TwPq5q_9QTTs4Yvjv8DyumCF33LrXWwKRiiXWNakWe.O1OIULfxpSBd.45JlnmB8l32bokjCj7kQCY0N80xvHzH843LnYCsTGPnEXRFaEcdL8fVkayCWy3KDTkXufW7ogqEbI1l4Se_BIkKX4S_iwb_Qu7Xzw_3O5hHfHbRJsdnRyMYSCvunvvYbO6hn6dxSIZ.HAaDxchgm5Njih79lIQYkNh0ci6XotxB.U2ach8faSqScdJUal2d70._iwlX__XlLyZYmR4FQqEkXa8nxBTW.UfHl9Dv4ogS1su3.snxgNLkhOMKSbiImbmGfUiDzfIPuHoe7KQEtmxoq0OhssxEqYpgJYE7qgufRSm5KlWvrpGtAvG.Z9PpRk8QfvpOC4UHe3XrT8YJc8dnlJgu3jv.J7gKa4mqUjX0PmOKfBdJkocehbVmfffuAer4CuOpfkqG6sKcZ2YVttHNw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=911044620a96c56e';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\/1362785094?__cf_chl_rt_tk=ucXHoukOomM8CFJ_x3DiKL0h2FrVWiDZIgLRUfYQq70-1739401984-1.0.1.1-wEswvFjzguCtS.thOjajb3qXMyNlv3tS2wRRHpen8UU" + 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