Digital PR Powered By Data Scientists

Get your brand seen online and take the headache out of link building.
Digital PR Powered By Data Scientists
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Link Laboratory

Choose From Thousands of Authoritative Websites

Link Laboratory is the world’s largest publisher exchange, connecting you with over 51,000 authoritative websites that accept guest posts and press releases. With our platform, you can quickly expand your online presence, build valuable backlinks, and boost your ranking signals. Strengthen your brand’s authority, improve Domain Power, DR, DA, and Trust Flow, and stand out in today’s AI-driven landscape.

Expedite Your Outreach and Publication Process

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Find the Ideal Publisher

No more middlemen! Browse our exchange and connect directly with publishers that align with your site's topicality and goals.
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Upload Content or Add Writing Services

Create your own guest post or press release. Or, request the services of our experienced content writing team.
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Quick Turnarounds to Grow Your Brand Fast

See your guest posts published within thirty days or less. Our publication turnarounds average 7-14 days.

Our Publisher Marketplace Includes…

Authoritative Publishers

We only feature quality publishers in our marketplace, meaning websites with domain power and organic traffic. We also extensively vet our publishers and automatically confirm link health to ensure your guest post is indexable and sends equity to your website.

Marquee Publications

Ready to grow fast? Publish your content on the most authoritative websites at the top of their niche. Our list of 150+ Marquee publishers will get you top-tier links from authoritative websites that dominate the organic search results.

Industry & Country-Specific Websites

Browse publishers by category, industry, or country to find those with the most relevance and topical authority to your site. Or, enter your domain name and our platform will order the sites in our catalog based on those that share the most topical relevance with your content.

Writing Services

Add writing services to any order and our content experts will draft your guest post or press release. Our dedicated team of SEO experts have over 10+ years of writing high-quality guest posts and press releases for publishers in our marketplace.

Multiple Projects Interface

Doing digital PR and link building at scale? Our Projects feature makes it easy to manage orders for multiple websites or your agency clients. Our platform is ideal for marketing agencies who do link building outreach for clients in numerous industries.

Detailed Order Tracking

See exactly when your guest posts go live and track your orders from start to finish. Review your orders in your dashboard, and if desired, white label our dashboard to share with your clients.
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Pieces of Original Content
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Backlink Placements
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Satisfied Customers

Why Do I Need A Publisher Exchange?

Every SEO ranking factor study has found that the number and quality of links pointing to your website is a key ranking factor used by Google. The hypothesis has been proven repeatedly, even as algorithms have evolved: If you want high rankings, you need high-quality links.

But many publishers take advantage of this fact by selling low-quality links or guest posts that don’t bring value (or disappear after your payment is submitted). Many marketers have ceased doing link building because of these challenges. But link building is still crucial to online growth, as mentions in authoritative publications drive trust and authority signals in search engines and in large language models.

That’s where Link Laboratory comes in. We help quality-focused link builders find publishers that they can trust. The publishers in our marketplace have been vetted for their content quality, organic traffic, and credibility. They also publish guest posts according to Google’s quality standards.

At Link Laboratory, we only feature the best of the best in our exchange, so you can confidently submit your guest posts and press releases, knowing that you’re getting the highest equity from your digital PR content. We also do the follow-up work to ensure that your links stay live and continue to drive value to your website.

Plus, we offer detailed reporting that allows you to track your orders from start to finish. We take pride in being the highest-quality and most transparent publisher marketplace.

What Our Customers Say

Publishers For Every Niche
“This exchange has been huge for my SEO campaigns. I have found topically relevant publishers for all of my clients.”
Estelle Schneider
Digital Agency with 100+ employees in the USA
Super Easy To Use
“I’ve hated link building for my entire SEO career, but did it anyway cause I knew it was important. NO MORE. This marketplace makes it simple, easy, and hassle-free. I will enjoy never sending an outreach email again!”
Francis H.
Head of Growth at E-commerce retailer
Quality Assurance and Friendly Support
“Link Lab has been awesome for our agency, and every time I’ve had a question about the marketplace, they’ve been fast to respond and answered all my questions.”
Serena M
Public Relations Specialist at SaaS Company
Great Guest Post Writing
“I recently added writing services to my Link Lab order and was super impressed with the quality of the content. Worth checking out if you don’t have time to write guest posts.”
Troy Benson
Head of Content for UK-based Agency

Frequently Asked Questions

Link Laboratory General

Link Laboratory for Link Building

Link Laboratory for Agencies

What is a Link Laboratory?

Link Laboratory is the largest online publisher catalog, and is nearly four times larger than our next largest competitor. We feature websites that accept guest posts and press releases for growth marketing purposes. We remove the middleman so you can publish content directly with the publisher and build your brand faster.

What sites are included in the publisher exchange?

We feature over 51,000 publishers in over 50+ categories, from Sports, Technology, Legal, Healthcare, Ecommerce, as well as traditionally challenging categories for link building like cannabis and firearms. You can easily search the site catalog by category to find a publisher that fits topically with your content.

How Does Link Lab Choose Publishers?

We vet each publisher in our marketplace and only feature those with strong organic traffic and topical authority signals, the two factors that matter most for indexation and higher organic rankings. We also have over a decade of experience working with these publishers, and they maintain high standards in order to maintain their position in our marketplace.

What is Link Building?

Link building is an “off-page SEO” strategy that involves reaching out to other websites in an effort to earn more backlinks and brand mentions. Link building has been a major part of SEO strategy for years, and is often performed by SEO experts or content marketers. Link building can lead to more credibility and recognition for your website, including higher ranking positions.

How can I use the publisher exchange for link building?

The publishers in our exchange are vetted specifically for quality focused link building. If you want to earn more high-quality links, you can use our platform to find reputable publishers in your industry and submit guests posts or press releases that allow in-article links.

Does your exchange include non-English publishers?

Yes. Although the majority of our publishers are US-based publishers with English language content, we do feature many country-specific websites, and we are continuing to grow our publisher database for international link builders.

Can I Choose My Own Anchor Text?

Yes. When you submit your guest post order, you can specify your target URL and anchor text in your order. If you add writing services, we will ensure your link includes your preferred anchor text and contextual anchor text that improves the value of your link.

Do the publishers in your exchange publish press releases?

Yes. Some of the publishers in our marketplace publish press releases, meaning you can use the Link Laboratory exchange for press release distribution.

Why Do Prices Vary Per Publisher?

The highest quality publishers in our marketplace are priced higher because of the link power of their domain. Placing guest posts on our Marquee publishers will generate more benefits for your websites, including greater link equity, authority, and referral traffic.

Can I White Label Your Software?

Yes. We can set up a white label dashboard, so your agency clients have access to track their link building orders from start to finish.