Imagine this: you’ve just launched your shiny new WordPress blog. The theme looks perfect, the content is solid, and yet… crickets. Traffic isn’t trickling in like you imagined. Sound familiar? Here’s the harsh truth: without backlinks, your site is like a well-decorated shop in the middle of a desert—nobody knows it exists.
Backlinks are still the currency of the web in 2026. They’re one of Google’s top ranking factors and can make or break your SEO strategy. But here’s the kicker—not all backlinks are created equal, and if you’re chasing paid options or spammy directories, you’re wasting time and risking penalties.
What if I told you there were free, high-quality sites that could give your new WordPress blog a serious SEO boost? In this guide, we’ll uncover 15 underrated websites where you can earn those precious links without spending a dime.
What You’ll Learn:
- Secret platforms most bloggers overlook.
- How to use these websites effectively for maximum impact.
- Why some “free” backlink opportunities can backfire if done wrong.
Let’s dive straight into it.

1. Medium (medium.com)
Medium isn’t just for sharing long-form articles—it’s a hidden gem for backlinks. When used properly, Medium can drive both referral traffic and SEO juice to your blog.
Here’s how it works: Write an article on Medium that complements content from your WordPress blog. Within that article, naturally link back to relevant pages on your site. But don’t keyword-stuff; Medium’s algorithm is smarter than ever.
Why It Works:
- High domain authority (DA): Medium has a DA of 96+. That’s gold.
- Built-in audience: If your topic resonates with readers on Medium, they’ll click through to learn more from your blog.
Key takeaway: Repurpose existing blog posts as Medium articles with links back to your site, but keep them valuable—don’t make it spammy.
Also worth reading: Comparativa
2. Reddit (reddit.com)
Yes, Reddit—the self-proclaimed “front page of the internet”—can be an incredible backlink source when approached carefully. The key is participating in niche subreddits related to your industry or topic without looking like a marketer.
For example: Let’s say you run a photography blog. Share useful tips or respond to questions in r/photography with genuine advice—and occasionally link back to relevant resources on your blog when appropriate.
Warning:
Don’t just drop links without engaging first! Redditors will sniff out self-promotion instantly and call you out—or worse—ban you from their community.
Key takeaway: Engage authentically first; only include links when they add real value to the conversation.
3. Quora (quora.com)
Quora remains one of my favorite platforms for building authority while earning backlinks organically. Answering user questions not only positions you as an expert but also allows you to link back to related articles on your WordPress site—especially if they provide deeper insights into someone’s query.
When I tested Quora strategies earlier this year (2026), I focused on answering questions about SEO tools and saw over 700 visitors come directly from one Quora post within three weeks!
Pro Tip:
Make sure the link fits naturally into the answer—no hard selling or irrelevant mentions.
Key takeaway: Consistently answering questions builds trust and drives targeted traffic alongside strong backlinks.
Related guide: 10 Herramientas Clave para Crear Contenido
4. Pinterest (pinterest.com)
You might think Pinterest is only useful for wedding boards or recipes—but think again! It’s an untapped backlink powerhouse for creative industries like design, blogging tips, decor ideas… even tech tutorials if positioned creatively.
Create visually engaging pins that lead back to corresponding content on your site. Use Canva (free tool) if graphic design isn’t your thing—it has templates made specifically for Pinterest graphics that pop up in search results.
Why Bloggers Overlook This:
Pinterest doesn’t feel “technical” enough compared to other platforms—but its potential referral traffic makes up for it tenfold!

Key takeaway: Treat Pinterest less like social media and more like visual SEO—it rewards consistency over time.
5–7: Hidden Gems You Shouldn’t Ignore
5. Help A Reporter Out (HARO)
Journalists need sources—you need quality backlinks; HARO connects both worlds beautifully! Sign up as a source at helpareporter.com. Respond promptly with insightful contributions based on journalist requests—they’ll often credit their work by linking directly back toward contributor profiles/sites too!