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://seobubbles.hashnode.dev/seopack/

  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;padding-left:1.5rem;max-width:60rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{line-height:2.25rem;font-size:1.5rem;font-weight:500}@media (width <= 720px){.h2{line-height:1.5rem;font-size:1.25rem}}#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="360"></head><body><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: 'seobubbles.hashnode.dev',cType: 'managed',cRay: '998c2bc4bd04c995',cH: '2mSQ6jfq6iXZBMQAA2N_vxMK4xkC1K2xmNnh3x36H2M-1762176046-1.2.1.1-2OeE19Y6gMMEa5wnCujtsDIBpRkSKHLmkyw6bNZHvHkiTwzhvVVzJd5lUnVMKQCG',cUPMDTk:"\/seopack\/?__cf_chl_tk=PRSd8WwQ89sVYPTIsnFoQjHyFJvUS_Z7jeAVBMjWHq8-1762176046-1.0.1.1-dTnwDkCw89PEXl9olM4K7AWtsOHS5POR5vqnAk4LLsc",cFPWv: 'b',cITimeS: '1762176046',cTplC:0,cTplV:5,cTplB: '0',fa:"\/seopack\/?__cf_chl_f_tk=PRSd8WwQ89sVYPTIsnFoQjHyFJvUS_Z7jeAVBMjWHq8-1762176046-1.0.1.1-dTnwDkCw89PEXl9olM4K7AWtsOHS5POR5vqnAk4LLsc",md: 'ibDfvQCfjeDF9RRQRXO_asrnxH8ZbbRk_6drGOtZnsU-1762176046-1.2.1.1-oe4ErhDXHrIKAIhYVF388JxhVwdZSy65hm3nHQ0biBf0Lgw5PcOB8AV7zB.hPHGUw8lbtbqI.HnpV8eLuZGy6MfrTDdCplH9DuCdRsh5FbHu6P2MCMPmkEBIbVznnxGn56_hmMXLog.RC9wvnvZSt75R9Sqb0i6FsJoKPHiqhujyCUvpZaGW0otxngLeIPvzX6DYPxbFsTmCKshpgcX1kkdVsFQ1r0NJWRDzvzR2q7WhR98SkWn2R7gYDbn1wCmyqtLg68cS715XhW63gDrZ0XNDBzta80ZY8sD0fwn14JPaSITkMo4McsNlCMpfi6sKdYTi2N.CUO43JYKntenkPGLoxJ9foHjvCiyXDcC3yqcIGCAADAuYe5GfTKmUgB5sCd4UT7QHVe164ud7UZVSCAudCFXcoMhYaCcWD6vJU5VVdocEzcH6aygckMoopWZcjGG8VbE5ae3Qadv5bT3ZyzkWnutVO1XLeQRbRJlPVvx9yxUzgDmdMKPUX59XOOeKOCyGtNVakuIApvTqyrltGdBFHFrFOO7gd0f.ZH1PPtJam2k_dR9z73nKw5OXOcwiuyKru1Cj4v6V4uJTn.RFHTlp3sjwQ49eSINmu_I1VYQYun7spZ.pHF0cOZwftSjfEfGxubvgoi.SV9Ecnyg2rh9NkX90jJiHgM4wp5VpbMVAsBxaEELVhw2vpUj5m72eqpGRMGUyjRRKcIuQKu4W8SLX_wrObbZ0NKJbUO5gy_kwmyrQ3NDXHjAyx1TK7vj6t.UOK5wDvgQc_pTTjIZCBAd.dW9WORdF0XwLmIdPtJnWtXDPZjykmpC3gytJ5R2KNN9NhOYcMTBHyinbWW1X9erJUjwHjwV2v3rFitB1WEwV.k3fABQfudbnJbCLXjBsgxyMFjJu.3eNHy21qBPZ2jf1PkCzLybtOQKH00no11Qug2_y6RB34dT5FlmXceF2',mdrd: 'kiY2QINjtl2hy3Rxag_j36uVaLKZh0dlB2a35cLOZco-1762176046-1.2.1.1-w00nU9NahQUGysjuXUIhiBnNDy2tMX3BP_AqumhrJn9BFQeibS_OBqNXrzcjxEcEe.m8L.YTcpw0fM9QJV1REIlZ01VYYGSCNms0t9mp4mtXosc7GB3f3fKbvakVJlOiBwUtxGgyAdZX70x0p3NHdEgcN5dbfaqVF1UCVY6ckNJI1fPjK8fVqtugTeaNIMNhHuYbykfBnaJmlQPZTMGu_341E.YuoUXrejKblNL7rw6yHMs0bP5XzdvXz9iWUbIMc8dEm2_TcgvwVOUG_TNsapUKlVER9K_v9Qq90zGJ29hJyfuDA2_WF0X.IgVdK9xQeW_Yq2883gupxKm2xkUmAVXxEVGVIBl6K73gpL64htF34dL2KO38syBI_Pj5i8eIEjzh2nYv.5.9ZvH7KrG8MazaY83ZY90kh6bpb6O9ENZtA8IupE_f7xzR5deCQfFNU_3g6heqICzAHrr.S.M9EAwQDl7bClJHp2s.KbW0r4u.UHzYF8mR3KHsVAbhFmYb.pdeQURThXwjCP.VPpXc.GG3QrFytBzJ6R3OwYvFr1_sF7D5O8cPqtO5u6RkbG2nOVWaTuVBCXdYh1GgDzQg5vnJKhI3n3Weem2uf.0eN5wrh88sNnKexVlmf1O.jrXZMso5Zxz2xU9yEbsiMTNTjlwy3o2BkKwoyA7NZknA3Ke5XVJWmvi8_0lKrHdYnYHH.fJQ3fbS8w4nYSyg1NdxpOf2lBwu.tOeV9fxhhcFTykuLva1JUVB3DvC68HNNmO6_hOzizUVphxXO8yUPzigcJylJo.H1YZd.FTpZaNeN.6icIjyd7v.09llIlablUKTsS_g9pPn5arcyKKVr31PiAiNQd9FwTdqt40W4n0yFbmAe3zKB8xx8CE4.3j3bV7i7IwRq0sFmOs5Q95_Vi8vkYl.id3uIIg4r8KBnOBwkpJ16EbRDzUVtej_FgzFxI0J25.bK4GgHM5M7kCMsIHoRkPeRnV9Nn8m6aLLBMP70XknAAJvZm8djPOTwAvBMVR9OaKlYwtkwXt1Osv8MyYp3nMZotMC0e9mJwd596qAE67PqF9vYpvlNzkor0FhKabTVyzRfK4ziK5lLnx.zDLK.snXiici826jckJkRicMfhDnDuRlWwjiqbS9M7kHoQ2B0ExJVzNZrRT1.o7Z6y4rXaaeyHOTMmAbke6gxcLOhCuzcwRS0xNHtQjZLe6GxnuiKauVn.VIuAJIkraWwgzgd9bwiNki8x3yQchRG9vjzO1MFI1M3OJUgXg997G6c0ThbJLiawFWxmIL0rZgdW9nGpeceAdiTZvkSpTE7wDZ7N7PbpMSgnUc40djzI3uqJiOzbjnFG7oPGK52.JywuLOLuggjxSLlnYkC.MPC9dm_7vTwct3K3iEyUHBfrS2QfJEvzbQFx4HhR4KWp4.fAlfHPmASYE0HlG7Eei8WrTEXyHwRQ4MzKnwOIu_ymdriJphW_fnwpisnBREI7c_9WVX8EgCx79WolPrmrTXfFXBeJY_.seCpi2AqrAMAejV2C9ZpP09ZLOakK1GtiEjQ6Otqoj2bmttBOM4MWSdEGU4tX4oMDyF1FExo.sBANodVi12YAfZEY5PtNZbUzlqg7qevBqRgWVa.s2wbW7k_9EWC5lLBwlo_9ZUO1CSIl5_UG0fcErs1GFkd.R5uXdOmfUnrRU0H2iZXhCQrRc286fnFl4InJmBHezIDVwXCA.4jM.jiqc0kNE2SdiXJ3QQSnqcMf9aTdVGf3TDJw5pj67GLlwGhKRBihXJBH6nfmp_cbXY1Nf7S49cJ60cd_tQz1wgt9AtdROW1zBxJAh9ACcRErRrReHyJQscsLSYUM7PAjZJ3.um8BgPrMWRjDHMLYPCzIZgNXsau._u7BPf63gtOKjC81Wh4KmEJ18xc8OzHhafa3EJ06NFcZ8to91R_65WM3zmXwdsisqGqrJ_EKf9zqyi3ug2UXFsMwWdjRu0YP52',};var a = document.createElement('script');a.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=998c2bc4bd04c995';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,"\/seopack\/?__cf_chl_rt_tk=PRSd8WwQ89sVYPTIsnFoQjHyFJvUS_Z7jeAVBMjWHq8-1762176046-1.0.1.1-dTnwDkCw89PEXl9olM4K7AWtsOHS5POR5vqnAk4LLsc"+ window._cf_chl_opt.cOgUHash);a.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(a);}());</script></body></html>
Copyright © 2002-9 Sam Ruby, Mark Pilgrim, Joseph Walton, and Phil Ringnalda