Guest Post Marketplaces: 6 Platforms Compared — and When You Shouldn't Use One

← All guides · 10 min read · Published July 2026

TL;DR:

• Marketplaces sell access to inventory, not judgment. Catalogs run from roughly 44,000 sites (Collaborator) to 150,000 (Adsy) — nobody manually vets catalogs that size link by link, so you are the quality control.
• Fake or inflated Domain Rating is the structural risk of any open catalog: any site owner can list, and DR can be manufactured. Verify organic traffic before every purchase.
• Guarantees vary wildly: WhitePress publishes a 36-month publication guarantee, Collaborator a free 3-month one; several platforms publish none at all.
• Marketplaces fit experienced buyers doing volume with time to vet. Managed services fit anyone who'd rather pay for vetting than do it.
• Whatever you buy, run the same checks we do — real traffic, real DR, clean outbound profile — before money moves.

How we evaluated these platforms

We applied the same lens we apply to individual sites in our backlink quality vetting process, scaled up to the platform level:

• Traffic-verified inventory. Does the platform show third-party or first-party traffic data (Ahrefs, Semrush, Google Analytics), and does it verify any of it — or just display whatever the publisher claims?
• Transparent pricing. Can you see real prices before creating an account, or is pricing gated behind signup? We only cite figures a platform publishes; where none exist, we say so.
• Guarantees. Is there a published, time-boxed guarantee that a placed link stays live and indexed? For how long?
• Proof before payment. Does any money change hands before you can see what you're buying? (This is the standard we hold ourselves to at LinkVetted, so we apply it to everyone.)

Every factual claim below comes from the platform's own public pages at the time of writing (August 2026). Where a platform doesn't publish something, we've written "not published" rather than guessing.

The marketplace trade-off: scale for self-vetting

Every marketplace makes the same fundamental trade. You get a searchable catalog, filters, escrow-style payment protection, and per-placement pricing with no retainer. In exchange, you do the work an agency would do: judging which of 100,000+ listings are real publications and which are made-for-selling-links sites wearing good metrics.

That second part is where buyers get hurt. Open catalogs let site owners list their own properties, and the headline metric buyers filter by — Domain Rating — can be inflated cheaply with link schemes that make a worthless site look like a DR 60 publication. Platforms increasingly show traffic data from Ahrefs, Semrush, or verified Google Analytics precisely because of this, and the better ones (Collaborator, WhitePress) verify a portion of their inventory directly. But no platform verifies everything, and none of them will stop you from buying a bad listing. Google's spam policies explicitly treat large-scale paid guest posts with optimized anchors as link spam, so a careless marketplace habit compounds risk with every order — we've covered the wider market mechanics in our guide to paid guest posts.

None of this makes marketplaces bad. It makes them a tool for people equipped to use them.

The comparison at a glance

Disclosure: LinkVetted is our own service. We've listed the specific criteria so you can hold us — and everyone else — to the same standard.

The platforms, one by one

Adsy

Adsy claims the largest catalog in this roundup — 150,000 unique websites, with around 15,000 added in the last month per its homepage counter. It's a genuine self-serve platform: 20+ filters spanning Moz DA, Ahrefs DR and organic traffic, Similarweb, Semrush Authority Score, and Google Analytics data, plus custom website lists and filter subscriptions for repeat buyers. Pricing is set per listing and isn't published before signup; the platform monitors link presence after placement but publishes no time-boxed replacement guarantee. Adsy also offers a separate managed service for buyers who want the catalog without the manual work. The catalog size is the draw and the caveat in one: at 150,000 listings, inventory quality is necessarily uneven, and the metrics filters are your only gatekeeper.

Collaborator

Collaborator is the transparency leader among the pure marketplaces. Its catalog is smaller — 44,254 websites plus 3,249 Telegram channels at the time of writing — but 8,500+ of those sites share real Google Analytics data and 7,000+ are verified through Google Search Console, which is exactly the kind of first-party verification that defuses the fake-DR problem. Buyers filter on 70+ parameters with an official Ahrefs integration, and homepage example listings ranged from $40 to $91 per placement when we checked. Every purchase carries a free 3-month guarantee against link deletion or non-indexing, with a paid 1-year extension available. Coverage spans 154 countries and 52 languages. If you're going to self-vet, this is the model of what a marketplace should show you before you pay.

WhitePress

WhitePress is the international heavyweight: 146,000+ websites and 384,000+ offers across 36 languages, built on 12 years in the market with dominant coverage in Central and Eastern Europe. It runs a hybrid model — a self-serve catalog with 50+ filters and Ahrefs/Semrush-based quality scoring, plus a dedicated outreach team for buyers who want managed help. Its standout number is the guarantee: a 36-month publication guarantee with daily link monitoring, the longest published guarantee we found on any platform in this roundup. Pricing is pay-as-you-go per offer and not published before signup. For multilingual or geo-targeted campaigns, it's the obvious first stop; for a single English-market campaign, the catalog's breadth matters less than what you personally verify.

Getfluence

Getfluence positions itself upmarket — "the first global marketplace dedicated to sponsored content campaigns," claiming 45,000+ premium media outlets and citing brands like L'Oréal, Samsung, and Uber among its users. Browsing the catalog is free and you pay only per publication, but no price figures are published on the public site. It's a hybrid: self-serve access plus a "Get+" tier where the platform's experts run the campaign for you. There's no published time-boxed link guarantee. Getfluence fits buyers whose goal is brand-name sponsored placements as much as SEO value; for pure link building on a budget, the premium positioning points you elsewhere.

Linkhouse

Linkhouse grew out of the Polish market — 26,000+ Polish sites — and now claims over 90,000 sites total, more than half international, with coverage across Europe plus the USA, Canada, Mexico, and Argentina. Beyond placements (sponsored articles, links and mentions in existing articles, banners), it bundles genuinely useful planning tools: Backlink Gap analysis and a Link Planner, with SEO data refreshed weekly from industry tools. Prices are visible only after creating a free account, and we found no published link guarantee. It's a strong pick for CEE-focused campaigns and for buyers who want tooling around their purchases; the account-gated pricing means you can't comparison-shop before signing up.

Bazoom

Bazoom claims a network of 80,000+ media outlets and leads with simplicity: no subscription or entry fees, pay per link, with content and publication bundled into every price. It cites a 4-day average publication time and filters on Ahrefs, Moz, and Semrush metrics. The model sits between marketplace and agency — an "intelligent marketplace" for self-managed projects plus client managers for consultation and custom strategy. Specific prices aren't published on the public site, and we found no published time-boxed guarantee. The content-included pricing removes one hidden cost that catches marketplace first-timers; the vetting burden on the catalog itself remains yours.

LinkVetted — the managed alternative

Disclosure: LinkVetted is our own service, so weigh this section accordingly — against the same criteria we applied above.

We built our guest posting service as the answer to the marketplace trade-off rather than another catalog. There's no inventory to browse, because we don't sell listings — we vet sites against traffic, real-DR, relevance, and outbound-profile checks, place the link, and show you the live placement before you pay. Pricing is published (from $69/link), and every link carries a 6-month replacement guarantee: if a placement drops or gets deindexed, we replace it. What you give up versus a marketplace is browsing control and the rock-bottom end of the price curve; what you get is not spending your evenings second-guessing DR numbers. If you want to sanity-check whether our pricing is fair, our data on what backlinks actually cost covers the whole market, not just us.

Marketplace or managed: which fits you?

A marketplace fits you if: you or someone on your team can run the quality checks on every candidate site and enjoys the control; you're buying volume across many projects or client accounts where per-placement price matters; or you need specific languages and regions (WhitePress and Linkhouse in particular) that a single agency's inventory won't cover.

A managed service fits you if: you're buying links for one business and every bad link lands on your domain; you don't have the tooling (Ahrefs/Semrush subscriptions) or hours to vet listings properly; or you've been burned before by placements that looked great in a catalog and died in three months. The honest math: a $40 marketplace link plus an hour of competent vetting isn't a $40 link — and skipping the vetting is how buying backlinks gets its reputation.

Plenty of experienced SEOs use both: marketplaces for scale in markets they know, managed services where the stakes or unfamiliarity are higher.

FAQ

Are guest post marketplaces safe to use? The platforms themselves are legitimate businesses with real payment protection. The risk lives in the inventory: open catalogs contain everything from genuine publications to sites built purely to sell links, and Google's spam policies target exactly the low-quality end of that spectrum. Safety comes from your vetting, not the platform's brand.

How much do guest posts cost on marketplaces? It's per-listing pricing set largely by publishers, so ranges are wide. Collaborator's homepage examples ran $40–$91 at the time of writing; most platforms don't publish figures before signup. Treat very cheap listings as a signal to vet harder, not a bargain.

What's the difference between a guest post marketplace and a link building agency? A marketplace gives you a catalog and tools; you choose sites, judge quality, and carry the risk. An agency (managed service) does the vetting and placement for you and typically backs it with a guarantee. You're paying for judgment, not just access.

How do I avoid fake-DR sites on marketplaces? Never filter by DR alone. Check the site's organic traffic in Ahrefs or Semrush, look at where its backlinks come from, and scan its outbound links — a real publication doesn't link out to casinos, CBD, and payday loans from every post. Our guide to fake Domain Rating shows the manipulation patterns step by step.

Do marketplace guarantees actually matter? Yes — a published, time-boxed guarantee (WhitePress's 36 months, Collaborator's 3 months free) tells you the platform monitors links and has skin in the game. "No guarantee published" means a dropped link is your loss. Always check the guarantee terms before your first order, not after your first dropped link.

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If you'd rather skip the catalog and the vetting homework, see our pricing — links from $69, proof before payment, and a 6-month replacement guarantee — or get in touch and tell us what you're trying to rank.