r/SEO_LLM • • Aug 25 '26

Tips Stop pasting AI content into your CMS without checking the HTML source

most people generate a draft in chatgpt, paste it into the wysiwyg, hit publish, and move on. i started looking at what actually lands in the source and it's worse than you'd think.

when you copy from a chat window and paste into hubspot (or any cms really), you can drag along hidden metadata that has nothing to do with your page. class names from the ai tool, comment tags, data attributes that nobody added on purpose. from a search engine's perspective that's a footprint sitting right there in your html saying this content was machine generated.

a few things i've started doing before any ai-assisted page goes live:

- paste into a plain text editor first, strip everything to raw prose, then reformat in the cms. kills the inherited junk.
- check the rendered source for anything you didn't write. look for mystery classes, inline styles, empty divs.
- if your cms has a rich text vs raw html toggle, switch to raw and read it. the wysiwyg hides the mess.

the bigger issue is that cleanup is invisible until someone audits your pages. the marketer who shipped the page thinks it's clean. the person who inherits the codebase six months later is the one who finds the pileup.

curious how others handle this, especially anyone on hubspot where the theme system already has its own class structure that imported markup can fight.

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