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-affpgq3ly.mit-edu.top/post/3948706215

  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-affpgq3ly.mit-edu.top",cType: 'managed',cRay: '90fcca1c392f13c8',cH: 'dC7OJ643IA1gMopkm.b7Gr6AL1ci0T7UUAESTuHLjZA-1739197746-1.2.1.1-XU_Hp_TxMDgnGmVtGr1w1EX8R3hY8GsOUzSp8_xWd_wXO3Pwdu35rGHDP25OHZw4',cUPMDTk: "\/post\/3948706215?__cf_chl_tk=Pwk8cuva2it4_m.PZykuMInzgu4yM_7ZT2DWM6QwoIo-1739197746-1.0.1.1-VULeTjbfi0.iU9.nj6uiRIxxXX4KdEAxvENj20NDRe4",cFPWv: 'g',cITimeS: '1739197746',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/3948706215?__cf_chl_f_tk=Pwk8cuva2it4_m.PZykuMInzgu4yM_7ZT2DWM6QwoIo-1739197746-1.0.1.1-VULeTjbfi0.iU9.nj6uiRIxxXX4KdEAxvENj20NDRe4",md: "ZcPsprungIWBUihB8.6d6pUn0zumdIySjFNAOyrxqWs-1739197746-1.2.1.1-OcUZYyEflCngVn.HjtWnfam4NkEZLd903xWivL5XGLEwBUtd_g2BLqyN1ugW7g6k9gRK7Ah_8CuuDAxWXEYDntZKVBsn2j.i5lYAbawp10xLioe87OzXPYLgtEHb40Kf5LB6v9Z42CfrvgeYxkvhP_Z6IZOSnSUJknVAxASOwU0s2LamANgYdw49p2v4gBo68aYZPTMFzH6s6l8ZLIx81xr7DbPEYtwA3YiImCEIA18hALWRcRQ5bCxRQ5ZUJ7a3FqDAMvXOabnLXBQbeZ0XnC4n.hSC_kKnoU.nfOtiyTzDqsh..PSWDeH327E5f4fajsQzAjex5ZBnEb2iSBtp4DYsk8lXmikqHUgS1h.yqhQlofP7xoDdcGSDzxRjJFgNORGV.oDOqcqzMbgSDSFtE7ub7j8mfHHjlFSHTJ33B5A8iRp0.9Cfh2G0JOQybCpCFmSkwFERQgksqr05hI15hC2mRjHge2Oew.Cjw0xCbMNL5KQxoyp.JFCwLsb.YdKQZY1bxlgbWoEiJiASsgi6SQ4EdO0w6xD4ZepeDNJ0jgnHN73unY2sWWOuqXuXW6yBqF3LD0UGHQq3tQOIG8XS4FlQeQ2kMmUp3zG1TAD7d7_zASLPmAtEolX6uP1vM8Bw00cAXCYzz7cAwZPW2D.IJXpjfLdsa6Xbpd6uxXTgxj1JyQInjFE3EeJqgN6zDTa16XBxVuhsVgJqLRK4Nwth8nUQc42OjAqiWHLvSEBLOvX_cP4EnxqcUN_gg58gZUEnNTJB0PzeijLHk7GFLT.8CY2FqMraiX50393QaR3brP0RDmDK0WrAYPFbe.ZmRKTAWMEqwaKMkU4FdvAgYAB8mtkq8l1OkNwouWSiV2y.FldJvm5mqu26IHEdKv4tR2swFAMRsVx42iwwdFjomtFaOD8NFphoQ_lWQWdNXKYYmaB0mwWxKng22vua2Z8EhFuc_AuSiimKO15AS9bw.I5f5lqWmxCGeTpN6iwFFtyjCqAeLStUPlcGdRhO6icu8wNEGtj51f0hSe4MT8V6C2dWUlLwQOpTvUPmp0fYB4RYcJx0Ny1v5w9RcIBQN8vfvffsJP3eg0A6dlPEwm8bzufhMgywaR9qexEb_dTBi3PJLecJeRKnm2Q_m5Maxb4bHKTvfnB9TN8nHoZnay9rzP7yZFN2paAGGO_iVFhdwTE6isc33fsXjKZwdXaZ.2wN5te43yky2M6Ko9fIqnPVa8UCALD_oF62pLXGmtBp91uN.3MDcO5CJt.N._w6rnp8eXWFIcbiBrp25vqdIYJRN0KR1vcGVQjD_slFQ2BpaIu3crb9Buh5O3ioGh_shvEGJ3UC1_gKoRwfGZ_EIoUVeYGybVuq1PKEdXgRn7eDfWlX8Wi8TpTAN8WXyfD7RoRIn2m1GQOo82.jGLTtz1NoI_0CixFk2VdDcQAI9fZs.9Zrg8IuE06ADOPNCrftzVMNJ8y5ETZiD.jMoGEFpsRRHMd95AVTrCijqPztLImojAloBbj9bX1ckpnzNsmvFmOTBL6dEMPVWi83RQRU0s242Kw_TkoevReBiosanLhzaLqInVhnJU4Rx8ZgO320lZun_FgQDQQVRxa33C.PE0EYoAynC6th8bOY_yFx3F6qJPT7qkOpZMGA5v3rsE6A6qAUYlE3wTVFO_FyTQJ1hMuKMdJ1qKn1m96O84s3Apbb6CpAMsO8VSGtD5ulG3jpKC3zFDDAPBSt0CjkEGy3alDXTTagEK90hgFJvId4z_g.6VFKPxCC2zvvTq4CeSh7DeIDBNSP5HSEbnvOfKKy24bzh.aT1mXzlB9K5ne5Xj_wILjqnuRAeWrjh24yExoGIyGNgZ9A_Jox50jpCqJi5UWhsG67OfL3JbKI7P_Lip5f36C2ccj6M.XQZ.pfyBUeDvzm1e2nXV2aswXUDcjgBqRX9Og5akNuWXNqUi0dswOLaJRrPdeCZ9.tPiWpseaoR9WtHTh8N9CwItBCXXpqu_sBEqixPOG98zwoVHRDYnU97QQWWvr0wzXaYO4YZ7n9Bhwbtl4CDA2UO9ZXOn3GGCVeaKGTlPut9.AeshN5nku.kcNLe_HeVnlxnGjlCCVBxrSLJzZU0UJKKniomdvtKr3JKOn3GYT4LUwLOLUbWt2fv8fGg4b8EvB3NXSkjrVptvDWuhZH2eSksl8I0soVkdMJnz2wXJkcDDczBIptvD4kMJMrdQiWOTTxuu8Iki_LYTJ0j3O2",mdrd: "q_N.h3.L5tJudYLfeOYtP41wQ.yyB6CwkX8BqRPM980-1739197746-1.2.1.1-BKDvV5aGviO14mf_6yoPyO4Ut1vXzYwrcLY9T2eaC5XFJXCJMiTij4cThV4fOBii_JQoT5CqldPNGZAfmMTnvKKnqABWMtehFc12irMHM6jbJ1QSJh9zPcEky2sFWKv09rQrVTvub3Ktip6rXFCVoHKpeDKsMdZo40jOxqAXf_Vqsx1a8T21_D0K0dFTEYXba.tFIG8n4SKDsZv_F6w24IPbgwvoGD.F6kaZIUBJ76.zWHsSladcFA9vvwnStyg9ta.ilsBN6hmYJNsQbxF40gFGT66EUI8Ys7.UPH23sPV7.xZLcXSEvMjnkagWQ1sTw_UJDqf7itdSe1U1OhxdTXEjrWTa_JD6bllHqqj8882GCPAnCRfs9inBDJ4QCuh7oaTd1IVXOJ1EwMhQbkQY4nMYkiuIPjzoWXvIgemNx6hxtDQqynu1M5QmL6Lnmub_Oj0ipN_79YxAt.AUxdQSQOvNuVAhY_K2RdKYHVHu_Sa2czopFBkuELq2twO9Eu2HN8whfm307JTllb_psg8GrijDsPO09QzeMNL5L5R6tys7HoUJAvGtcZ1bhHs0Ys3it6pGAuj8SaU8JznTdIYC6q2b.tCI9ECp2rYBw_nwzNc0.i2i3R2wcJwmCoIfxuyIrXg1QfTKEctKU4J53m7eMSWaAtx7o6it8AV2WO4mcLBoKF0zT0lN5PmeehFggr8xJ.2YVO1ntVcVRghAMToGpURLid3_.pJ3EBPGsJy.BnAX.zemAZyxpvRt.bRqqcuzY0DVyo2CvA9po0GqOBX30YtVf9hzitaBXGQkAQlUzTl.SYLTUUEsX8m1metpNKLRDJrokO9lnD_b2.IQZO216sAlGVWPHHQzyQj5yqFurShQMHa7_jSKM.DiXNtt4N.TsBhm6oBnjLLMiI.6bJqz8mavePWy2I46jfdC3eprRorG.wlE7opp4QZwa_D36SPK_9cinMtsXvuERlrdtSPbHc7qaRVyw03_wc__5Py1C0Vt_1BntyAMcXFQNSmzLrBKGxVwnu9PaL4ECuNmAX2TsaQoDTSQ2ckzYzwMRM6cyf9OVhtqsoRnhZTRpSixtteOCsEhg3hADnOuwkibDANJjGajah4DULO0MPoYGoVTxIl1iGEX47389zI0BA6GQIf4O2UQcPoPhTihfXcwBKQXSMRqZIHqnxojmntRjOkJJyPkwa8VckiWS3vxbdE8BdCo3Fns9dHh54.boKVarU15ypuhhzFZqXioWg8Fo.2jsY3uyEcJZ6Qjed6znuc5HkYJMHtpHhAwmaZ4C334lvEx8_6BgCbL3nlG4yZgtcUAmeYsLIP.FCdyxJYpSbK05lwrbEXW5Aj5n1s8KwvgIpy7KKyZlj9E5B5.JZsS82mH081NhVS7UmuTaWd8yH5X2Ql4Lg.HVeysGdub1bIoZzSd4QAMkejM9KCSeRTJfxL9R.MMBR_utwk.T9bDGFUIyylo0NhvVmK7fxAPDs8OPH4v9reSfbgvYWQNmcghgOAuTtke2cNmG0KbdtDDLiQjyMiENzGSbpa6tzH9M2BNvYdxAovKvTIfJQAvN82CfMV67Fqxk79Qgs8BIHk8hzOxl6SIL1i6yc..1X1AyoRGbGBYDAnedZNoi1HWdB.Lad96yX.Ixbj8DvmA5fh.8r09IlG6vrKZeMJL6PhWJSSjhcZGoG_epXMyMZnKtAs7bcKIgTU_Pu1nRIVdt0pLET1WzbqrNLmHejt6r_N25ti871GMi3MAuwitvSOB9sS86K78fR.QoXj1fjvfW1Fn9af8ybKXOIdR2Ngvrfc8N9atu3_img"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fcca1c392f13c8';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\/3948706215?__cf_chl_rt_tk=Pwk8cuva2it4_m.PZykuMInzgu4yM_7ZT2DWM6QwoIo-1739197746-1.0.1.1-VULeTjbfi0.iU9.nj6uiRIxxXX4KdEAxvENj20NDRe4" + 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