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-0419863752.mit-edu.top/post/0419863752

  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-0419863752.mit-edu.top",cType: 'managed',cRay: '911008d68d392017',cH: 'LIKTwNrenFrgDmZlAd4JHV1uJY4S3G3JXN7LKGDbV_E-1739399545-1.2.1.1-rn7MLHxYFeY6FyPTzHNNg4NBEsVrNa9d1bVH4VK1tZD_SmFWv0D6kx4tAzgsrMdQ',cUPMDTk: "\/post\/0419863752?__cf_chl_tk=gl_XiLsmeJNGhF0lgsu16ICqE0bbeyWFYybmpzK8cz8-1739399545-1.0.1.1-SIftd.qM_KgdBlFEGkBPc5_xcOjimVsA3IzKoHX0vjE",cFPWv: 'b',cITimeS: '1739399545',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0419863752?__cf_chl_f_tk=gl_XiLsmeJNGhF0lgsu16ICqE0bbeyWFYybmpzK8cz8-1739399545-1.0.1.1-SIftd.qM_KgdBlFEGkBPc5_xcOjimVsA3IzKoHX0vjE",md: "t0oISgHAuc1HL7g0XC0GqlmgzSNcc3SmcTFxngNAabo-1739399545-1.2.1.1-XLwdKs7yXF3MaBx6bNl1PNdCofJwcdPhC9Q5PWp.ejNpQD3MbXiYeAXCthQEgGXlpUfT9ZqUAY3mBMA_BBvgloO3Py7AnfdRmZu_B2ltQfJqcNGPLXubSv7ebjyNO_gASECh.I7PKKkLQ4r734.gtm1BeWdPtMWyAp4gxvpLNrN.sWQHfLqDUsl38LXZ9f4gb3pheFTZytV.8sMWqGv2.92MlRp060QZHJpPv1HQM0mGAOXJg0OhrA4eu2bIQrYMH.DkfOyTC18auJSmFAr4INP2mF0YQROyombvoRaHPPM7QoYgN8ZhkqZ8syRQt96E7aS3atMyWu2Nzw0wxdTe6lPPgvthRDcH8EeeAboPI.e1Cq7Kkqc3doKNIioCY8GPSFKb4u8K0J5pQrGZtCC8cYO3lAaqOR7s8gaPbZ_t_ErNZM0isYnj6BplYCaYv00vuHGwjCC7zgXXQRgYPjNBOummKdtYyOiwlIzvR8seqoYzIyfq9H1ZF2XMZ7lUin6WF.9Ms_IiT1xMupopW_omXiNs2iyKsYdPWkFTYeL1De3MUcTS_6b7RmJK2FQ9MGETjqq1yWf4_QSg1jMiLK4qzZ1tUai3UglRwTtZ55syiRaqA6Qim_h1A0U9drPVCPaKofKhPP4VNdAQ5orAJH7Cr1I1913q27pMLM8vmMyLlCMpz653RPNj9ywhwURtIi2BfKImkVhzFggIpr3pE4R7im7jyBmzIgNEpsmP9AKaid1cCPA_YBQe0CnCjbYecfnhziC.2vW7Q6e7OAZpyCbNQL9_vqt25dz14ZCuM_M.eusEgBueNjA364Uveb7lVhvS.EZY0wx2el0MFXwGCS8rDFgJOm3ZeZkGeCGxjh9rOGZSJ14P1q5nAAAT.IIFZ_vntfMEBctq.AHatMqh7SArCsHYp_qfX_K0Qdh0VqagCL.j9wgkOZ.GcmSagcCBYsvn5QHE_OUPVLHDEjDNBYXpWMc4.vGjc6gSFF4CgxQZJ3BEX7Grr5350kuJdAsGur_thjCc8qdPfkx6ynYerS1kNnd7V_sZt8.i0gbWUVnLIwOYewJjupOGvhbsVZLEB0cKaTzACAn4bVsJJYNW3kw05.fhYuZws9YVK3CmxS_zAf.dnnfIHgZrnYZi0W1hfaVexA.5mrgow3WABmHGw.UzT4z2466TWJvLPr2oTE_a9HC2eMdhxKkb569Ku7WYtw.C4RpZVlCRqRyp7uEIYXiLZBlAGV0j8TLnJjv_KGsdMANXjg1sxYuj2i5mnrcSAkhBqeLt8qMoZuqG5CFO_CRXblAsDG5RlfPQDNrV0YWQ3wOMfnvq87bIRwBC9r.nPNQzQZxXBL6pajAcb0rcPt.qVPCTs__AelwoPBDft7m9Ldakjf94QpOE.qRlxJtRduCpFQY_dV9ydvO3ZVPkR4AYDkupkj.PCp4y_sr8tjWH5wDtv1gPimSnAsBIJ2PxSrNuIeWvcL2M8HzHeoQbN8WPIboYzStj5apdAtUXK.Q6ac01NtCdF4NeikraJRLdBy1MamDdkdlQmTd_FcbolMzOZoWxm545K8d.otdC8D4neX5lbm9OX4fMdvMtaGq0iRObnt875lAMBZg1e0LfTBl2zBDieP9nybIxPnAySw4qWkFe9_.AWFEavQHVePQK1CnoSCM91ilRV4etvIoAaG2c58mUhPOnWrm3dpGNALr0ZfPGBzFSk88ghnyRbmWvBZN.l.r7UUIFBHDPzO5On23c.0JAEVZfx9hzmKdkESyxMQ8ZGiedyQp8y6biuGO2r1MRFBZMEjMktTjUMhcaHOrIonEWlrjNm_7ZwIUCoHg62fBvGjtEClHSe34TQVoPFRBem1uvmo22XpV_N54NKxuxiS8IH5aL4gLYImgKPznnjUrH3cokct30EEOJY.MqzLBYUDEtmGa_yhWneZAQRVEhTwR.uEk6pR9ecHiqHL6OP7e5mgTnlw.KwOg4MrQGFaRHogVWOxigNa16gVmvbC9t9P4EZweKnVAIt5B78uOtzgTo_4eealKKMpJvykteTurBaxM_ekder1E99UhWhaO2Kp8Z6YroG1UXUuc8TuPG3V_aOqBNERMRi0zc4UjnRmOcwo2WXnPGh97JO66Yk.YKD0o7pcn6XdjsDt3FhoUknv.A5mDbT_JNYiIYxaGnMnFb9AMP1_I_1O5N.oAD7G8B8o6O3i78kTvNRRY2soj6_f7FOFnCmBW7fJFKEAT89xNe",mdrd: "yT6BcTMpapxcIChhXer2fhJkVE4CQ_40KkL1_xVJaFI-1739399545-1.2.1.1-FyHM1bLF38Xbb.9dWg.aHKsVOYFDKSF20ou1V8c12N9.wlkiITrO1msMtwFq.FBZ3GImW7D1HUKQ6cp.Q.cT8yrvr9Ez9a8M8Cs3t5ns0gg7SSAz0gfoLCU9FLm0B22yaNHcFJJZwSazn1jDulXgMOeOVJbFei7wtzMmXaZNls2RFPY72BThnHQExVFbMvzURlnC212iyc6zfu89xThj4_2M1KkFVsSKcUKH_.sDAaxk9L79rJUFgTpoUAYGovPA6dYaHJ.uZqsDDjPjpkNEBMlUDJpDNJ2vhgsURdTfQEwy2bbWucQhaT1D8V7LJBHGEf4jV81MdffW0aEm_C2iuiYVC_879plUMmPxMKnSTNNnj8Zoe0NcqaRvFxJ0IuFSPu.qIQeznCWId9nyNdwSBKVmPwCFz1avWYG7csx6ooYOYT4XfOY9itwn1bv6jGuU1fOipStYMYSAUP8qy.Yo0mQNxV9HGBSlUyrl.ZrHCdT3mVzG_52B.7cWy68cbN.us8Bc6mGgWV.X9Sn1ogJsCrESrReLh8vLCgTjqahvZcS4A.gYqr6dMtkxXhC1JmkaYtCAT293eMoGTzEpP8uo5rXsD5GMKFTGNUgSReofaPQ5UdY.7CSuXx_k.zJ4DoIcQSl6z8KeEfg6igQvg6GbRbUpg_h0ZwdTGtvafnUG82P0cel1lDt4H_qkmvMtF2rgpnCW5d2_IE6HR3HCWGBJ2mbBIuE_PuTfCUE2ClAVt1KdWc9AipQG_BM6trnAR5rfj6WJAK7QugyotsCXtNS8NLOXG9wXfXGJPziNa77Th8ErJEhksewGu0R9C2jOwmmMGq.bXQSSh29s1Uk_rcw4zJ1UWho6oLKt_qVhdPnJGrfG_GE13RBzzbh4XuBpA8VnmXc.WJ.t6T6IxIRzl9hDHeWE7MGI3rQP9UV.M0VQ1Z55QrZN_fCuzW9dSkMV_tkZ7uZ6DhS4_4gm4AVg1VvCwI5GtWtUM0BWEbnpyAn9JMbns_GnE2teuNVHTPyppXAnY6uw4oeMRrqM3o8rIo9KG_N2aRQVDoFgbtQddHTxumaddY1uDCID5QPN2c8NR.lpLoP66eu4lOF_kV.hiVc4F6XsfZB_H0BQrL.741fLiiCktBjbYK87YGLTDON_Ad1vk5_PQBcTH_q1bKIjLNxqtqP4fFPwH1HuDlv1NRvIMSu_Q_6vEhfGtEomulm.1tQSKcDrW43UL_rTDFOaRFoSJdlXEW2LJ58AK0R16SKIvNUC.HxlJzDmb5FtX0GdYKAB7o_gqJcgFZwNBJ_esb7KDXXV9fHDZMsfvhh4lCRRV2Z9Jl4tVl.Cns09Y7Htw31PUU2wElbQomQUg1Pm.lOFoknt3RYnUEx6duJ5kEjNVi7ba_fQZHaHjty7ef_0lOuMFHxKBxEgdWJaTYBdwrcz0qz_Zhq9kVcf.EjBL_LcX_byowFMCSLAlD_oZZ2rVe8db1brenGkdGzVVrm201_mTSKhqWr8MlHStqaLIDPbvMcgoIG7hguu.P2zFlZPd5rTmQCvZ8zwXyTQxoID6cTm_3_UsyUhCNfvnxbfT5KUAS_SrR0wn5bBfFAmgRObkTDe1sa20wZyjvaCLkjNHuH18P.kJVdpMHNsDI5WTEr9rEHT2KTgPImFLIl5x_Um5.r7JjRzLP13kgMmy0InZzEgSevYIoHqcOqBT9VFVbCw8Kzvr4kLTJ3aN.SMjBLRAOwCaMLoPLQznI38APX2tbqjzp_EZcNTUuOht8pd8eXu6QMDXwU8psQkZaxPNubdCKsgCg2PKriQwaL4oFyU4iDiyfRSEF6pAPe5djTXVqrRk3c"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=911008d68d392017';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\/0419863752?__cf_chl_rt_tk=gl_XiLsmeJNGhF0lgsu16ICqE0bbeyWFYybmpzK8cz8-1739399545-1.0.1.1-SIftd.qM_KgdBlFEGkBPc5_xcOjimVsA3IzKoHX0vjE" + 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