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-aff5g2o31.mit-edu.top/post/7509146832

  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-aff5g2o31.mit-edu.top",cType: 'managed',cRay: '90f3638cd93a8298',cH: '9vFYmTGWV52FnJmTYmvuJ7sjng7g9srW7PZoi_L4KeU-1739099173-1.2.1.1-Chl1rA3AxT0RjtUdyr5MMTleRdaamjKmO3tW8uztA5AFu11Kn2j_lwVhjtayvi4w',cUPMDTk: "\/post\/7509146832?__cf_chl_tk=AEwJZOBF4_DXsHAGnVMvHgylXECzdcDs_jvTb5QLK_w-1739099173-1.0.1.1-yNAXhrT7sTYZsr4mHlwe6ERfwGxOi2uc42i6g7EwH7Y",cFPWv: 'g',cITimeS: '1739099173',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7509146832?__cf_chl_f_tk=AEwJZOBF4_DXsHAGnVMvHgylXECzdcDs_jvTb5QLK_w-1739099173-1.0.1.1-yNAXhrT7sTYZsr4mHlwe6ERfwGxOi2uc42i6g7EwH7Y",md: "myMWe.jbZ64vrCV7ExJs7QO6hkWA4lC_ilNR6m2GBIQ-1739099173-1.2.1.1-1ntOinMttPBhR0xcdzQxC8E8.S61LR6xDD37HYnO8Oqjnr.0xRylvVT4kKgRIvcOfEc5dc4e7rg_Lk58bkP9A3M_G.4MEe9IwL2FcNXQwGRWEFuPdh83h8CbpK_XtPMYBBU.FjtguhW7HIoUeoYoa7dFaQDMhEQi0Wc4O3T2GMPMU9RRMhuKH6Z8fTau1N9JTWUbq.GZ4D0O3fZClVcRvNGo1WBj2CUMXipNFLCXMtH8BqULUaxtO4TkpzWVfobOgbRrvJR845r_Vw8IOoR4wdc_riVrpywuyiHCwdqh4JzBlbQVuDUgFHkfzGwidFRnYbwA1DpLvk3xIyRkwRybT4iOdClWrLCqBMtUAhyiIMq72oNgc9oHsgQG9knIfYClJX.HchlFI2XF6bbMr6_h9sfwMAnTGmXdaMZEKR45qtjTjkS6.wkiSde1K9VKA5n9M5DntwcJeaxeMRDfbUL4c45lFxsH0uhxoO2lMKh37aC2iZsIqvRao5g9YtO7Lkh2LnGeCUeZiSdJAU4iMmehDqWaySxd9.yaUaTjq6BZ9BMWUeZz5daZIlmyYhl2IepZW2YlZN2X8s_4s4PCLieIA1.Cg4dc24l32jJMjyo88pUmpBRRNKscWR5OQRxP5ljc8lXsCFR745BZ7gDfF54yamCCUEVisX7yRA.ypVmLFNa59vfNONGuLIa97WAuwq06zVdgiZ4f5XxwJYgeQI14g8x0GDY9fhYg837pVbERgSpCKdz1sMHpHbzECKuoc44vzxZNYlJa58vOaTz4ftMPeNHgRtzQaSA7zDv88V8gjmKCyDmhqWUOhzTlhMOCoOHIr4yrPlTvTEnBNK87FFGslck1_mr1r8dCNgA1qSo_OGbrukS0GYX3A85tx89jesPOuaRQzV0gYp5wYfAIPTfQLERqvVJrzD5aOCEB.gOv7UpD8LEjJkObVBU_PRP5RB8_wZL0g9pV8UEiVCh8uTumTRXskprmdXoIesvCV_rmWRIaV1SUrPbpUX9lELATzeIdlz7_giACm2yg3S0VZOyIjCDLvsNqevVV7uD4pjPABvlYGO1hbA4IL7MUsfUrm5u5Rv24nl3kloq_Zn0OTRBb5PIGJj8xKn65Bg7_5VCOCvbbCxE0YWgrqnbFI8_GYwpz.I0RPwqU93lMz1NKuzPSKQEQVd4nQflRwuLESr9onzITRSAtVwac.UgvZIOZq4WFcttsqsbJc8VZgl_3XDOTrWHvEX0K7_ievCwBLy5Xy7fJjmsbWkhpQHMOs6q9InMKTV.8g3QlF8DEkAQTkagzkzwaD0KVAO8Zc1PPTDgIRU0HfoH6Nm1kGAsB40yLa1yiIqh6eSn420BqmR214czS1t5xp7eclvXIC0XjGbn5W4DLMi08qXNJR1RKWAFgxF93zOymnZ0eG7syt0JWODjZ6lqJByeWR1NNK1f3YSVV52sX81Fu6ct.qwPOK17USeNcx236tPocWRlpjrhvpWfhNdTpLHzH_owmFPfvsc4vQSDrlv5whhhbgLgxypX0n5On2326Frj69djLGegB1zgyEM7VAHMU7S3stmm7M5tBBZhYLm0oZJ8JkBAY1ORp6HYCJDzjJLjJXlIpgmZBopfEwoG2cOj18QydoTd4WYctRq96rPFTPqGs8BJ1TU2QPveFSrCeWHHWUya8HeL_omUFmfvOljnnsSNZ4H1IZHlw.9UHaDQ3mhIZLsxR9HSm35bdafpWXP6rUOMCrYvdVuLc2EFUFFfq9xezd8U8V5jrGLGDoKcWRXLA_85_pJ9KDq5rKIy_Vl7ONMUpLpIbHIxTNq.Tid6ehAxY0MLjQ7s2dG0t1VodNFzVRjG2tEneiOh6s6T8s6l06BPMb8BQ1QpRWtrI6gnXQAXhS100Fjfay5FAQskPrlzvy0SZ9uBsP_MiVr2FRtiBzUzjCPTOYmV6vyKFOBVl0BCrisIDYgi3hYld9i2o4IjDAgzuC8.WTsbv6dTMuhFPFhl_mR1OCAQaUCBPotj2wrhg9nO_2lCWIaZy2DZIwFlvZPdOwEEMWUVNVrKNLKLCF6lvtN7ba8WnVDLHSysV59drMScQfpd0Hwx8uX8CeWICpXxdV7SrLOy2.I8_8eN9WFKSo6tT3FGSJjH98xSMeUxz3toTBMvUzemTfO471ddJryumyb35P4cUv2x.24qF9V6J1IAA10bnK3o3AUH1bYWfvuuCwG1gUHSzAIp1WGZah6UfXgzeW6SN",mdrd: "t1qoxm9CIW6AKqgXfcW5CXeB6JV9Pl5aJEgyCXqIbpw-1739099173-1.2.1.1-Kz4I7QU0VwzpV2tDUp6EDuLzqtjTpK.kxB.SHc8Ve2bfw4uKx6jlv4wmbU7QKJWMU5cg.9ZTGPb9tPZmqo9kfgSKWpw8849D4O_xhRyuXmw9rpEDEf1o30S7tBtunJ5ZJDIkHzBm4Ze7KEkO5UNmH857kW9qmiIjIUoEbVhk_Wj1Ipk5dU0_7PelvBTGevrh.L8vqq6YwSOQWIissgE8IA6VyR5TSVK9wR6XiXBA8LQWNMrIdXRCwfx2XCUeqWpkopGTnzMDT5NSMY7YncJpBZoa9etr0u60.IHs8rfsu_IBhMg8YcYzGwQISdmHYrwjjNFY7DuvRTMrFhiP.GX7Dc9LZ0fkfO.IGFfCc13XgwqK6R03JDoPHu6QzaEoqPWAMoGJgnApzzTNmdwJRlzEGxqKnHb143N_ao1Fxf2IszGkT16sN3yNpLoDj43qUAHmhiHHWwTU6UeL9yrWEB0.5uiWrKZupQ.qQFDUoqkMrkMZJ.rdn_vgZ9H7jO3PqqWq23FGAIhuBKNe36FZva6eobgRBTsITIu0K2ohE1c4YveIC1m2bMEhf.9DCIXaOGmODCcNiKk.HGTcgVWjN51c09ThjRaa0ddhCaEq.fbsNNCCyl_JxR3PdIf0xH1dXDw_nUBf8ByHh0pnZlJJ2Sx_xitjy2cy2eQTsThoy8jm88aOq2LaEpauPWR.UiU7N10d7sRpYcSHtWhKBrmPyXnuzawTqHlGq4SqO_yTC0swqGBtnrD7lXySvcPDWvr4uxMmGm_t5ZamVLZHSdzfPoSBzjf5I.CR_ntvzIqs2PJ2yg9N9IlkxHGikolwgndSas4d8zdZv3wuOCLo1zcyZwheLCeR1ADw9iIanAoHRdL1znlqJ__.T7o8rTq3TDBphVorA1rXgmimdXzuSHt76U2dsEFKuw1LBoa437VF_bFx6jHLvlekOmRwUtzjBGzQuPTj3b.2MwqZ3U2huf36A0s1_aBnPrKy4d2_lErGX8lSCW689_wHOItjqdDPjpgdla3PRc5DiweacLMi1i8Nl9FNBweyuFMxgNQv6I8bymIPKnS.IU3msd0Wm8sBDsXGU.CLShaXDk6g3VpAFPH.Lc91LNOBmihTtTOFzgm1LpLp5UE89Lqd9D80OG.TjPqOdrqXyPYkikqb8rKYV3rfE9NMqQHdIqly5GrqpWV4lZciy3qnzpOj5H.qvjs33tErfeB99QuDhuSMtEjN4GRXNttb7LDVSmMrRklhRYyJ5OA2Cxj6z5Si9QERNCmw44lQu4uW0vCpWV_6CjP93tiTITMgksHMLEAivsW_HlTVrj8r1w0f9ghppv7Miog6IG7ue5GwXTB39wqR3sFIMY_QpU0CdbBzPTXx_QtnWdDxVBOqX63po6Gx7rKmL0XElH5kYAjtlIit8_9edW19ftuE_BcxMElnadnQc1aDYU5ne55lxsFfOrKkaPlPIY.Zl_NBXQkNeOjG8ofEtKYly7iUzT4WErQxrHn1cTDMvkwStgljoRMfUpFJOFDxR9wC8Fx15ixHkeSlG0bogZ6sEwt6l3AgVcTBpCNCfCq7sTOZCzvD5h7iivtwPGvuCkGOI3_fXjM.Ia9r5l9.JtQedfinFFWMTRIXVanZ1xnc3iBjshsLTFd27p9JtAMoODB5DFq6lBipNSdSxWaJCbF9.YYzoGxdVpE5lzppE2uE5oSHIwuMFU_q9JY7LbolwPTxRWxCgEppUgrcUNzupgj2ky2olriDSm13pdKpHdgEA3ii8mJp8waidbo.wlHt3rmbvOL5WHZ8_TyaIWh3QaNAINhHxX1LYClN9VcX8kQWVV3Y1KOzBjA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3638cd93a8298';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\/7509146832?__cf_chl_rt_tk=AEwJZOBF4_DXsHAGnVMvHgylXECzdcDs_jvTb5QLK_w-1739099173-1.0.1.1-yNAXhrT7sTYZsr4mHlwe6ERfwGxOi2uc42i6g7EwH7Y" + 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