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-633397477079.mit-edu.top/post/0387961254

  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-633397477079.mit-edu.top",cType: 'managed',cRay: '90fae31eeedf3ae2',cH: 'sYgIHYw_vIcUHeC.0ngm9haQ1xZ9LdEuws8HQ5jSSro-1739177799-1.2.1.1-GBOZrE9cyKd7TLcpz7sjMDIzC8aFe1YxIgrGNcUOI.FJg9pCFrNTG2qG1Pvirovm',cUPMDTk: "\/post\/0387961254?__cf_chl_tk=_m29qRePtM1a01NUAgMF0Nt6uFzQby1HuHMzVr8l6R0-1739177799-1.0.1.1-rL2gIdKV_EmR8c05Q2BGKxLJweH.xBm.Uzgv9ymW4NU",cFPWv: 'g',cITimeS: '1739177799',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0387961254?__cf_chl_f_tk=_m29qRePtM1a01NUAgMF0Nt6uFzQby1HuHMzVr8l6R0-1739177799-1.0.1.1-rL2gIdKV_EmR8c05Q2BGKxLJweH.xBm.Uzgv9ymW4NU",md: "30z31QBMlOwqbIEm57mBibkcSSzB19xKymafhaTuke0-1739177799-1.2.1.1-1DN3oLRRqmBjBB2A421juDxyEFGnqBEB6nzHzdwgX55.nTcxaQdYEBHYR_JEZf5Lx_C9S3lh3qw6mp_ARFgcjb8qOtGW6.FaZaN4.wjAacp15CUujyO8Vq86rcUoTYl8fbcD84yncqb8AMd8eBnt4VB1Pk6jJIky1dep9YOz90wgr_wz2S2DZrbSlXejH6HJIE37m8mGqLpnrzIJ3a_cdEnXz27XEUuUu3j7WQRTmOu52nZMIMk0hUGE6XvDuQuzs2KBGX76epBCLu0rdhoDuJ0.cJSACj3A7hOJiHgVHp9.PBk9m5Zma1KBOdstN3wMj.Hm.Hmw31RnFKQyft83dkPnQC0WjyMLcX3B3fcVqxQzctL_71KkT7JvDm2.izdmm3OAEUfMwt7J0AwibvhwQBZbBzrgMn9p14MgiNJeu.idh.coFxQWPDXCr0AIVaqcBdeUnTilJlZ0ytuGQ4bQhKTyanTxArY5zeyvSVBvHBJ9Y9jJ0jejAVNC81v0To9e.RDs9wB4kqg8t4T08OvUi1odZAPeb3mD4rjkEU.O9H9Cvwb4deMI5fIVOKau_b9kpWorBbLYL4AihWufeX1.VP_XPNwCrru._to5VFZnQuxgMPFJF8FeubjJtMAQu0TsX58NHBgwF_OhOI6X4XgVfgFXp3ueTOXn3ljdrj1uXjidqREXD7.MU2gS_yut5XQcmuJJgqWaLrgZt0acgy8gWJqTsGLFAr0CsjQo3SDU31OAZvUwBFZq3Yne0FO0WmzV57RqmD5svhfjN2kOXeBB_Kt.0x4msEe3VV1HDGOnsjShv19MH1Rs97l5bnELssFZTTfFRgOUpwNYI65LmIFGR5Sj3kkOvOir7UxFxAVkpwg_J_CTWspoYKxSJfdQRlBtSeIkPJmS3rnJiaEnVMf4.S5L9wmO1e.meDMie8iXAKB5SrIXGQxUPRCAWng9oTfw8CIdbAKAmhmcD2TWs0sccI4UhBlBm64cZ43fvEAwUzYLpxw.ElU1bYLYTei7Y6dOxDialh_5EYiKmwE8S_GM87K.8lEQgCATtV9lss9fjO4D7qHxrB5vNaHAzlOV0P2gAejTs8oiwETXpTW0TCKD9VkI1HpFuUJhfEcV6xXARW3bFlV.hucodQ6S32t.fTMzcp9o94TkliOH64rqVkBNQFMzUx7ELrvQOgskQV3bqptu5uh0WhPrWOSG5vrM7CtS0ReVr9J._spGZhJ04jzIJryovJlPHBvVONNRig5zTUu2L_jIED2V7zENxw6iVCpsFfrtj959unWs3_gkDmtdysXi3VKggM4du8SyS02jpBldv6Gh3jgtVRfxLUof3BWCOKxyj0Gf7af2FxqRVZgzAwb_.zkrKEsBoJlEtLbOA6G8qvKSUS9WalTSdbPAEX.rs1HZFyVCp5cwNTeI0eyocWSKZLf5s3tghbJZWbeWt5ILC9UXNNC0N8CJpRDOQy6IqDopHIskWGCq0PdT7qh6Cg_hGGaG6uG251eX27G.bDEL6MmVzij0KBMUBhx6C7vWYQoiOjoP1JR64.Cm7trOoP8q8A5uu1o_GH6JxnwvY8vQ2gbRFmq5mWOxcnrRNdGvwmgM9BGqVd8UeFhuxZpj9lka8p92rchseEF7uLPqcXImQt4VQ0z5bFOp6h3s3qr7y_78eiKbd5qukOipgArIJ1MQzXZKTOHxc4XqDjDYjcNka7oZlt1alBQFkQ.2IkvGFOxheWH9gKaYKHPAC5HM85p9BEc.FaHNbR7bkbrt756VH69oovERBkljckz4q.2ytYmlP0V7LCgsjEzDdag4Czwa0_ij7iDbNB2KMy8nJOd1iG3NKOUHkSHcFvyox3AImRC.PCQY035PfIntvwYJuE9xbTaNzmB5lwhwWaevnyHRZWo.yLpEOGnZCzEW0UiUMr59L0hwqSxiwGl7Lrw7PAVGc2ShmXFizBcWxIOcrIUR2T.V8_fNgJZxAsQiWAEutcy8WikdZd5w18jx9B04zsFa6m08NuVA7QFxse32Yr_Cd1xHXeye5aqnNdbc1nkT2dj7IOiGxfm3JG8K9RFp2ounLOymCl5wJv2jYyxNk_du9AhbXRihnljVsP2amYFesBpIo4ZSEziE4riZ9LIyylQnrUbZkimCtqBDHmhgUxNsOjZ8aBHzihnlh_TCw0wxzi1ibZvolVFYqjiHIjKwPY8ySE1yHXhT0rO1X4coN0c1EnZBcrQ0rbQiugK3NijX",mdrd: "CQReiCNb2g8Oc2VYaa.TayYJh.OHBlf8GYDjh3VX4gc-1739177799-1.2.1.1-D6HQgL3ihKHFmRx9YhAh7OTAYli1HGTpoGL7liig.VQX__8mQHh4Ih9zadUdYstN0z4kjmZEXqlXArRfU7AVjsu1M3EGsyqSQXwW6AnsfASNbBew3iRDc97P3VLHnxJDooQjoKAz5pGy3vPdvDi9Qm5i7sb8cWYxV6TsJYrNCD2ka1ZTIeivgbc_jk9Jip1CmLn0jLhGh.eIlucFDhQjFYglZ3hy85.3YDji7lXOJticYVvK0eBYc78vEN7QxfHnd53WQA6KlQZr.C2S1k9ttkEhboQy4rBUdjbVuilsm_y7MjpcjfF.8nRMYICa8_2B8GgGaIhVWC5EXdp5Jr2dGG2sgcVIca3COFrKNMnEtPWs1Zq3oSIefJPBw.rX3BgUnh4VYFWH6xjsFF7aCmcxOygrQAG.ywSqAPKOTOIalVl.3BkqWPITnLUHAo.sOh87rJP.cuOJ.iUqJ3R_LBT1AKGwj0ANvu_1aGgotWmbbt67a7eFQqldDwD2id408PCey6ncBsZ8mWfDEgCSh3sW0qEmbpPN2ZHXd2VI1g8Noiwb1iSt8vn6MjGMbsqdir0v8b4bzs7cF5igiE6.I2r9sFv6DV56Iz4ul8VfGovKnLr1QDnsBZHu61eb.8ZiTCEM7CBXHmjBeDp_Ydx4WvamI8s5DETXDXOBpiVr0gxE5TSmTptyL9R9tKm4oOExY49AMfzKLIWQsowsfCOp68foHjax7C4PH6Oi010E3zZWg7pTER7kbCjuU6bn1YPfPkwOiWBz6K4KAOTG653JtgOKmVkK1ERnUve98A3n4jeOG6PbsJRMwJM5seb90pZddavG9OQ0vOeynff28iczBoGcv.BgAaiw13ABXNcfLJieWaM_0.xGbvJqrjxzM1b4wcrNZXgDFZVcLpej7OGhPDdAY4vfCoD3LyCwDmXrCBjigOKUj.3DclO9J4udSqj0MQYSos0.F_FMCdvfrTDmhZfgymcJ8h96zzJj8aYaHuJWiLvLj9rD.gzL8EB2nec3VaZ_TuG8XVoFPRQgxYxzow15idz7Ku3ArMbdsSfmmFhnNVs2t_JzObvNkF7K5xtfJ5kSvRdawIoO6S.JJiCe3ZEpqeDVZzwm6JdBla2.25rQPz3uQa1r.EQjSS7oCpinGjweZHlew1pYpNo0_SK5q9DVNB3BHvSZPUrmlJiU_jOeXX5i41gWft5w5ijxkAAexdRxZLZYu41fubqlytW3Alm90dI50Lz8JB4n.91bUbysYGMvRH_egG9Euy7H8u_v8fk_aV1GGjRJjf6kfsby_.lRKOOuQqJ9pzBqfJkRKErRe9rc52SxFOHx6GVUk8kLoays4xaXqtjAM7zB3K8Enb4w3B7WXRh1ZNmA5hCq2GVcSrca6334A81abCCKw_z9dToRvQIbFiBSi3iGbO5k_pLajhjrd7xhXUUYDweXyED7CGSXibdOpZYZHRwk13pbq44zyFd7CNZBn.2O434QfD03GcQdVF0FFrJ_gE1lKB0QeyWT9Vh5xQbcCplFLA237_S1uBKL1gh3SBmj04PweafTEZZatPpqWOP2qhXpeXa0P2GEqpAEvpgBetrqpUo2tXOi9LQqhbDoZCQcgO.QQlTilQsmJ1cU1Y.RoL4eNoeFqiSlvw0XQJ8IqTGjddgP79gfpbtzMy1W5o7045BMGxp5JNPaEILqQ8YLaUrgbLdm0JunzFy.qjusduvAN6gAA9FvvsXy.1UA0mQDvsq2WDr1qy8XUyNmWmkdrwLsNRWTuUbvEJfGuV6fbUfpbI08wGO7"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fae31eeedf3ae2';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\/0387961254?__cf_chl_rt_tk=_m29qRePtM1a01NUAgMF0Nt6uFzQby1HuHMzVr8l6R0-1739177799-1.0.1.1-rL2gIdKV_EmR8c05Q2BGKxLJweH.xBm.Uzgv9ymW4NU" + 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