White hat vs. black hat link building: what SaaS companies risk

What white hat link building actually means

White hat link building is any method where the linking site makes an independent editorial decision to link to you. A journalist quotes your founder and links the product. A developer blog references your API docs because they solve the problem the post describes. A comparison article lists your tool because its readers keep asking about it. In each case, someone with a reason to protect their own site decided the link belonged there.

Black hat is the opposite: links created mainly to move rankings, where the editorial decision is either fake or for sale. So judge the mechanism behind each link, not the tactic name. A guest post can land on either side depending on who wrote it, why it was published, and whether the link passes ranking credit because money changed hands.

White hat vs. grey hat vs. black hat link building

In practice there are three buckets, and most SaaS teams that pay for links spend their money in the middle one.

Grey hat deserves an honest word, because it is where a large share of the link building market operates, whatever the sales page says. A guest post on a real site with a real editor and real readers is a very different thing from a post on a network site that exists to sell links. Google's position is still clear: a link given in exchange for payment should carry rel="sponsored" or rel="nofollow". A vendor that tells you the grey zone does not exist is either unaware of that policy or hoping you are.

What Google's link spam policies actually name

Google's spam policies treat links intended to manipulate rankings as link spam, and they list specific examples. The ones that matter most for SaaS teams buying links:

• Buying or selling links that pass ranking credit, whether the payment is money, goods, services or a free product.
• Excessive link exchanges, where sites agree to link to each other mainly to swap ranking credit.
• Large-scale article marketing or guest posting campaigns with keyword-rich anchor text links.
• Using automated programs or services to create links to your site.
• Advertorials or text ads that pass ranking credit, and keyword-rich links pushed into widgets or site-wide footers.
• Low-quality directory and bookmark links, and optimized links dropped into forum posts and comments.

Notice what is not on the list. Guest posting itself is not banned; large-scale campaigns with keyword-rich anchors are. Paying for exposure is not banned; paying for a link that passes ranking credit without a qualifying attribute is. Google gives a clean way to label these links: rel="sponsored" for paid or advertising links, rel="ugc" for user-generated content, and rel="nofollow" as the general fallback.

Private blog networks do not appear by that name, but a group of sites built to sell links is about as clear a case of buying links for ranking as exists.

How Google enforces it: manual actions and link spam updates

Manual actions

A reviewer at Google decides your site shows an unnatural link pattern and applies a manual action. It appears in the Manual actions report in Search Console, usually described as unnatural links to your site, and it can affect specific pages or the whole site. Recovery means removing or disavowing the offending links, documenting the cleanup, and filing a reconsideration request. Google does not promise a timeline, and the review can take weeks.

Algorithmic neutralization

The more common outcome is quieter. Google uses automated systems, including its SpamBrain spam detection system, to identify links that look bought or manufactured, and it has said these systems can neutralize such links so they pass no credit. It also rolls out named link spam updates from time to time. None of this triggers a Search Console notice. The links stay in your Ahrefs report, your Domain Rating may even look healthy, and your rankings simply do not move.

That is why "we've never been penalized" is weak evidence that a link strategy works. A neutralized link and a link that never existed look the same in your traffic graph.

What SaaS companies actually risk with black hat links

A penalty is the dramatic risk, but it is rarely the most expensive one.

• Paying for nothing. If a vendor's links get neutralized, months of budget go into links with no effect, and you only find out when the target pages fail to move.
• Exposing the pages that matter most. Over-optimized anchors usually point at commercial pages such as pricing, alternatives and integrations, so those are the pages tied to the pattern if it gets flagged.
• Brand association. A link inside a spun article on a site that sells to anyone puts your product name next to gambling and payday loan content. Prospects, partners and journalists who research you can see that too.
• Cleanup cost. Auditing a profile, contacting site owners, building a disavow file and writing a reconsideration request takes real hours.
• Rented links. Some low-quality networks remove links when you stop paying, so the profile you funded disappears the month you cancel.

Set against that, the main downside of a strictly white hat approach is speed. Editorial links take longer to earn and are hard to forecast, which is why many SaaS teams mix approaches. If you do, decide consciously where your line is, and only accept placements you would be comfortable explaining to a Google reviewer. We cover how to pace that mix as you grow in building a link building strategy that scales.

HARO link building and journalist request platforms

For years the default white hat recommendation was HARO (Help a Reporter Out): journalists posted requests for expert sources, and anyone could pitch a quote. Cision, which owned it, shut the original service down in late 2024. The model lives on through other journalist request platforms that work the same way: a writer posts a query, sources pitch, and the writer picks the most useful answers and sometimes links to the source.

For SaaS, API and developer tool companies this remains one of the cleaner tactics, because founders, engineers and security researchers are exactly the experts writers need. A few caveats:

• Competition for each request is heavy, so it rewards fast, specific answers over templated pitches.
• Some requests come from content farms collecting free quotes for roundup posts. A link from those adds little.
• Links from news coverage are often nofollow. They are still worth having for reach and referral traffic, but they should not be priced like followed editorial links.

If you are evaluating a HARO link building agency today, you are really evaluating a team that monitors these platforms and pitches on your behalf. Ask which platforms they use, who writes the answers, and whether every quote is attributed to a real person at your company.

How to vet a link building agency before you sign

Almost every link building agency describes itself as white hat. These questions separate the ones that can back it up. Checking the individual sites they place on is a separate job, covered in how to evaluate backlink quality.

1. Ask how sites are sourced. Manual outreach to sites in your niche is one answer. A marketplace or an internal list of sites that accept any topic is another, and it usually means the same sites are selling to everyone.
2. Ask whether you approve each placement before it publishes. If you cannot see the site, the page and the anchor first, you cannot stop a bad one.
3. Ask what they check beyond Domain Rating. DR is a third-party metric that Google does not use. Good answers mention organic traffic and its trend, topical fit, and the site's outbound linking habits.
4. Ask how anchor text is planned. A plan heavy on exact-match commercial anchors is the pattern Google's policies call out by name.
5. Ask what happens to live links if you cancel. Links that vanish when payments stop were rented, not built.
6. Ask for a sample monthly report. You want every live URL, anchor and target page listed, not a summary of totals.
7. Treat any ranking guarantee as disqualifying. Nobody controls Google's results, so a guarantee means the vendor is either guessing or planning to game something.

One more check: read what the plan or contract says about private blog networks. A written exclusion is worth more than a reassurance on a sales call.

How Chung Digital approaches SaaS link building

Chung Digital runs white hat link building, and we would still rather you judge us by what is written into the plan than by a hat color. Every plan at our SaaS link building agency includes manual outreach and vetting, no PBNs or link farms, and the content written for you. You see and approve each placement before it goes live, and the monthly placement report lists the live URL, anchor and date for everything placed.

Starter places on DR30+ relevant sites only. Growth adds a niche edit each month plus an anchor text and target URL strategy, which is where the anchor planning from the checklist above gets done. All plans are month to month, so if the placements stop being worth it, you can stop.

What we will not do is promise a ranking, because nobody can guarantee one honestly. For the wider picture of where links fit, start with why backlinks still matter for SaaS SEO and our practical guide on how to get backlinks for a SaaS company.