Marc Moeller

Book author of the only book that explains Google's algorithm exactly as it is. Open Source SEO Software advocate.

[Marc Moeller @moeller_seo]

@recap_david newsletter

[Marc Moeller @moeller_seo]

We studied 133,000 domains that sell backlinks.

Here are the top 100 guest post farms you should NEVER get links from.

They tank your rankings.

How we found them:

- Checked what keywords each domain actually ranks for
- Flagged sites publishing across dozens of unrelated topics
- Cross-referenced traffic vs domain authority
- Identified sites with high DA but zero real organic value

The patterns are obvious once you see the data.

Some of these domains have DA 50+ but rank for nothing relevant. They exist purely to sell links.

Your favourite link building agency? Probably uses at least 20 of these.

Want the full top 100 list?

1. Follow @moeller_seo
2. Comment "FARMS"
3. I'll DM you the list

Stop wasting budget on links that hurt you.

[Marc Moeller @moeller_seo]

@noahkagan Got an SEO tool, Noah. https://t.co/ScboCHPsnI. Let's chat

[Marc Moeller @moeller_seo]

In 2026, the biggest giveaway to the backlinks you purchase, is not the domain you buy the backlink on. It's the AI generated text that you submit to the guest post website. Inspired by Dan Petrovic, I built my own machine learning classifier to detect guest post articles with 87% accuracy. If I can get to this accuracy level within a few hours, you can be sure Google's teams, who do this as their day job have this down to 99% accuracy.

This means Google just has to look at the text around your backlinks and know if you purchased it or not.

[Marc Moeller @moeller_seo]

@vitddnv 10k

[Marc Moeller @moeller_seo]

@boringlocalseo localrank

[Marc Moeller @moeller_seo]

@mikefutia seo

[Marc Moeller @moeller_seo]

SEO Morning Routine in 2026:
1. Start openclaw and ask how the rankings are
2. Realise rankings dropped and ask openclaw if he's done anything about it
3. Openclaw reports work is done.
4. SEO day is finished at this point. 3 minutes of high quality work.Repeat tomorrow.

[Marc Moeller @moeller_seo]

@TheMattBerman @openclaw @dataforseo rank

[Marc Moeller @moeller_seo]

@claudeai please reconsider my account ban. I have all my company data in there. Spent 1,000 hours in Claude. I've emailed you just now - my claude acc: [email protected]

[Marc Moeller @moeller_seo]

I will give a talk at Shenzhen SEO Conference 2025 on Pre-event Workshop #1 [Separate Fee Required]. Hoping for a great turnout! - via #Whova event app

[Marc Moeller @moeller_seo]

@ztyan Brilliant Tony! I saw quick creator checks article quality and facts! Impressive

[Marc Moeller @moeller_seo]

@fba lemme know brother, thanks

[Marc Moeller @moeller_seo]

@cuppa_ai Hey Cuppa team, whats the best way to get support?
1. Prompt length of 5,000 characters is unreasonably short (AI models can take 1m tokens these days, please dont limit it this much)
2. The knowledge uploaded in knowledge base gets ignored by LLM or may not even be sent to LLM.

[Marc Moeller @moeller_seo]

I'm particularly excited to share my insights on what it takes to beat Google’s high quality content threshold.

Early bird tickets are available until April 6th - grab yours now for the best rate! Link in comments ⬇️

Anyone else heading there? Drop a comment and connect💯

[Marc Moeller @moeller_seo]

I'm thrilled to announce that I'll be taking the stage at the Shenzhen SEO Conference this September 18-21, 2025! 🎉

It's a rare opportunity to be part of a global SEO knowledge exchange in China's innovation powerhouse. I'll be joining an incredible lineup including:

[Marc Moeller @moeller_seo]

• Gary Illyes from Google's Search team
• Aleyda Solis, founder of Orainti
• Kyle Roof of Internet Marketing Gold & Page Optimizer Pro
• Zac (SEO Zac), author of the bestselling Chinese SEO book
• Stewart Vickers
• Jamie I.F.
• Greg Heilers

[Marc Moeller @moeller_seo]

@deepserpcom Built a scraper to pass page content to llms.
Very helpful for on page seo.
You could get your competitors content send to llm and ask: what's better from the competitors content. Completely on autopilot

[Marc Moeller @moeller_seo]

It's official, Claude Sonnet 3.7 has moved us into 'serious code' territory. Such a joy coding projects for SEO with this LLM.

[Marc Moeller @moeller_seo]

@sama bad, i dont want to have to think about my credit limits spending etc.