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-871121245699.mit-edu.top/post/1620794583

  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-871121245699.mit-edu.top",cType: 'managed',cRay: '90f411adba840641',cH: 'WOBaTcTDnsv12Dbrqgkxeu5yn8yUhsMzjh.PKzboDps-1739106306-1.2.1.1-b2KJ.XYZzjUYVFcTchPIlF4DdFj5O7BWSYtb_6e4nGkXfrS33i7vbvyAbijyXRsV',cUPMDTk: "\/post\/1620794583?__cf_chl_tk=n7xGhjjBRAn2CpG7lUaqxla3choBv.s3uafWc_eWOUE-1739106306-1.0.1.1-Y9yPVG03K.nqZVCzp7uTi6IMz1MRwiX9zISWTkw9ywA",cFPWv: 'g',cITimeS: '1739106306',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1620794583?__cf_chl_f_tk=n7xGhjjBRAn2CpG7lUaqxla3choBv.s3uafWc_eWOUE-1739106306-1.0.1.1-Y9yPVG03K.nqZVCzp7uTi6IMz1MRwiX9zISWTkw9ywA",md: "qqjpXbfsQz2r.3l3gWeo6xzUyxWWuFsAwhmT_iDRWtw-1739106306-1.2.1.1-pEO4q9K9RhGMU_nY6.7nNQhpD2CmwHASaYTElyfqd6rAUcN7K0v5_O20B8HYMYunurBu_ZPmnZKWrdkM8KUykZ7kUIlbzk3LqMJGmSEt8zBzWgHXaCzMi.OW2kAUROGs6MRraAdGifylqAJPdZBs_z4HmtgkfNXAgMQ1J1hrWtQ7rSYhWeblrphutHEGCaNuuiwDRSMyN9wu67TZ0MyzvOL7VE1oLIbXuOONFUrRzEDdttYpx_Bn7B2xT9sIC7gkmo5Sx_OvALnzBGUt5O6hbFySLuPYL.dF0uyXeHUrEQjHtHPXlqpngNMVC0EDqim4IgfvKfsTTkpGj82Sb0B0wwQYc24anKPAM0P_O5mJuO_rz78QaNMP4irnFnBuhE1y4wxyHT2HOXjRyDwMYXuAJcuaKWHPDIGAhkP2XcysaW2Gr0jsBabIBW4k4CXiJpqYn0zIQFr0.uvaagTqf_8Ni__tFfTEcwafc8da6T.JTepY9b7GE4X6Cr4COwRnkD8IyDhXoGZ0Dty3JYgVX0iJqCGUpZ9ZIz8qv24ivw6_P1JGm4rmFXMMzeb17AtJwI_NjeS_6.2ssFazG11vdoCC1dgBjQpzoLZkqx2C1HgKGWBT5wW7OzUMhbKh0cuWp7x38sRRg.mE7QHdy17NHu5Rj91IKupSG5xhO.PxqXx9QlUxeGGqkxi4MkILrg5WvM.eQPDKOo9Nele.HHcoR.ek1F6q26i7pPWuHss3Fmn3nYQAOcwxahkinCI.Wp0hAUshJP3.WfggPRk._lvP7a5I3mfHPimkZbPiMEcKnxYs1kpT14pVh3tiWTHc9MTrOPXEcKqb_5Yf911iz2xKoRxFtPA.Q20TP9pHeDOEiSmJqybBjxC0DPjRxvQEsSj9QK0BE4TXvdfMGhNLLAElIObsHqzK73BmSnyKbusOhnAfsvlg6saEQ4IvyKM..hJWuzSvq3XxLdsMRcWbmgBSCVMRwAheO.E5DMw.A1.DMCa.jsKavC015.20A1mjjz01ohv_kLpsR6PLW3q4yfZAQq_jYqFmu5rforDw8kGz2HgIPTAlZDd7oAQD3eKbm3RGO95r4OMy1sxbZ.ipoVsnLXH0FikmLzUGyrvvgc7bVlwbBfmwPF8IFxReXbmD9ObcJKvMmcRbrkBXn9StZzluzjh24OppFozlFSaQlLMVs.j4tPrkHkwBWQU8wggDCsFhZvmuYY9TCh3rdSJSTAJ366giMXfE2.Nw7vaqsuEKKTG7fIQqD_2RBMsqwreLDZ7owSm6OcVFdDlwjEHkdXYmJm0d7pcjkVLEDRWiziC_q520SKEKGEtccMFi6SqAy7nhuXZHPoWO_Xmt1n.D1s0AdZDt17ZCKEYzfYwEehjou1dLm48pkS4eedBUugofAd1IGxVYZJTRhqXPn5lxKhsReyHhCRRmraxz6LxFZ6WaQo34NfJxF8GAg_EoZCssHZaaiLg4h38D6LZSbjVNcMPQBJj4x3at3c7L.xjY8H6nGh8iGtp0Bx0lMCilwUbwvdgihfAC0_5SL6UgwI9HCIW2fjOfbHrcC8OHIWxBixJFH.TfXTxxmI7nINWhCj5yf5r2CuySX6g8fuopbKiAc83U.Seg3qYAodr3SwoSmKR0mUE4T54TlxingTl9gNSl1AkQlrFGcfil6TmoVSZgxZn1OBQqdDv.7xS_8xHe90y0McKVYkUyC76t1ELuhtlJ4iRJve9tTvHkXpXujPPzWkDBsOwI4gsdmfNfctX8.WGomUyX.gxVwV469JxHQ0LA6M2RFggifGWbrhSKfm97D7L88rwPvko.sg0BgH1b92TpmLVLyT.cOmbp7Cz3LdaRduAWWxNamYYNkf_9l7tBbvqT1ahCrf_7c10qbppt9of86bHfTABXPADQ7w_yatRtFnBzlTVpYthM8EfbyGFMbtf_8BnMJZbFPp7taRBHSPY7EGjCYtZgL6tOJfkt9UknT4ucIV1f6osO3KHgk_U3fhBrXcHfr2x1Tkk2XLoG9t8zyh8qydLOwFtHPb0..5FQKqAPhx1Tz2HkL2Y2sScuqBlLY0m6i49i352h7kgI9VdyilWwBuvGQXFh1ev3RCm5WSQuWZAhqG5RTINaewjPaBScUJNZ5uBGI02JcRiK5EM5aJaKuxsGoPD4xQo2D2XFOzTl6XXTCV9kCNrnuesnOJEEVOL3P7_wbKi1tP459g2vC4kM7DFo39Vw44.eHE5FPHD_iflW",mdrd: "O7LakaBXD7AaSTFQyPiGXXsSER7yPZeDqp706MYNQnk-1739106306-1.2.1.1-kgPAN2eF5dCUQYe0BJ9nNukMhvc_vxVc9LHl2XBpd5MUK7HVVwGqkXwyUfpffaqnEi3vJmIkwxcGlFLGioOabNf.C49q07dcVfGhTBeh8Zy.aingfG8obkfCspHg3w53Hu.arcLsmGfHIXdwkv3QRP7_Zazfzhw3m2_rl75uH3.Ox42BKklNgDdXbaSj2gvg9AOpoowAcda_qlxMvBSWrcqAA8zfTqzYNl8xPRJaSosyWIaRYFxaKl2kwC5OWblCll3DolNPwAEZMDTrtKpPZca9IMgBGF2K6kUdmOkYkERHYjQCbfB3x0EnXvuT5tZQ18t5qNFOF3BopVYVcTVyzEi0n1LInkMEd8hMLSjgCbzjBvAU8aWHQirdjaZjcwCYPZsxeX0tocB7HfeMuxnzHgqnRYyEORCnwUo2xkp5W99_nIjpVlHZrq2Zl5nUlX5hUAeO3KTACFYOTpWS8_ItvmPVj4bPZRQb8200qncpLAron2rHRUdkckQBNTmwZWCm8XUGHCA.vUMkUzcFml6DaiLb16ed9XZhCSWQPrleUSBCThrLivxNae0FcTEyVgd3Q_9z11CgQ_QsJ6kAjL.5x5JmPAdRxgCm_Gj_Qp26REiTYW57usmLyqYCUIsm2kYvzgRxOxopsZtdpNoeSsKqubxKMsuZL8TR9bK.N_yb2_fnGcjdKMXqPB_Z6UcTeN.sS868qzBLUqaS7r.COY_BhVb4TQMfzrMS6XPOdyVTY2Sm907gDG1TXq7LdzO_QWrndcgjYsoXip9Qqi1iK_2EaZD7MzFygZaRLRviR3NZjm_R1JC2ZsnaEHtToXKCh.o_2LOqIo9EqHnhSsB0CM.Fq3TB4GuhZwJTFgFLh1HLRM5lhSlGLF5vrRfQCMmYK97flzHg7m7m.7wI_JUKNFln9UeQblGGhQJRxJ3iNTkEji6av1c.XVylTwJSxIs7ZWa.w3iQrsxpA_t0j.KtDUDIRagaZ8_g7FGxrzjWZ7pxYLJ2G8GP6ytSNx7AVWhXeBNheFKnquOuMw2S6s8s5RhBIuZ3uYs42l5K373FpQ.MBbQ2kA.F.z0AHfvXj643SyAJd2fuSoJ44romC9YkTohLgMEcRd2jFwWM5.yGqeEI0MwZab_TfJ7scyf_F_SEdVW58EAqBuF.RQD_2XTSCVGXARB9xgGhitFoo6EsDsN8GMo6L.1b7mqcBGGbTgjdPVMvRbk6wyDU4IzQRGvrx7Ds9LD5_lyd7XGLxC8.x6hQsVIPhLCh7hDJtHVeQnhp5Vb3iwuxxvJ4nk6ppsmIkPdouUPEuF.ktrg7sAQRP4eCTPEgne3GdaoufT3o811MhgbeQetmoSC1GqA9H4dLs7RKRCag5NlmhzBtIOQTia4s8Q6KMvnqPgtv8RhJk0F7EvnDd5HazgbK3sKyDW7CtFFWeOejhkbQiqErQOViLzkht8KoRZE3wrtUkbKbH5QkuETlcPBCJtQeU4XLI4.xUybMnfkGus68VKgiNZP2edd9RVKd3TZxRN.H.4Ij1BYVGaSjqYVAIvk2twvgqKRG7L1fVTx2g9_Qkg4N5udfZQZN_s2LzSlXg0aufM37ey2nr2JlQFuimYo4RYGX0b6Z5RQPUuxrNrSbfYMIcsPO_a3VPSSkLe3NgZh9Eg_o8cuGx.IFZuXNQiLtIvO61oRv2VgeahLAha5DYVRmdYtsZF5cYXF4drHdOGjT1er1okQOsEq96iVaOw_W_shAEqlggw.SpvOaYSxK_nCgOp_C_ggqlkpejZR2_EJTf4u6FX8D6NnDT4RzZ0fpsqhCieeSY.6wd24S.3tsuWn6rI4QPacNNjA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f411adba840641';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\/1620794583?__cf_chl_rt_tk=n7xGhjjBRAn2CpG7lUaqxla3choBv.s3uafWc_eWOUE-1739106306-1.0.1.1-Y9yPVG03K.nqZVCzp7uTi6IMz1MRwiX9zISWTkw9ywA" + 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