Link Velocity
SEOAlso: Backlink Velocity · Link Growth Rate
Quick definition
Link velocity is the rate at which a website gains new backlinks over a given period, usually measured monthly. It's not the total number of backlinks a site has, it's how fast that number is changing. A sudden spike or a long flatline both signal something worth investigating.
How it varies across Australia
Link velocity patterns vary widely across Australian industries. Content-heavy sites in publishing and finance tend to show steadier, more gradual link growth, while smaller local service businesses often show almost no natural link velocity at all. Sudden unnatural spikes are more common in industries with aggressive SEO agencies running outreach campaigns.
See SEO performance benchmarks across Australian industries →What it actually means
Link velocity is less about how many backlinks you have and more about the shape of how you got them. Picture a plant growing versus a balloon being inflated. A plant adds height gradually, week after week, in a pattern that looks alive. A balloon fills instantly and then just sits there. Google's algorithms are built to notice the difference.
A healthy site earning attention naturally tends to accumulate backlinks in fits and starts that roughly track its content output, PR mentions and organic growth in relevance. That's organic link velocity. A site that suddenly gains hundreds of backlinks in a week, often from unrelated or low-quality domains, is showing the classic signature of a purchased link scheme or a negative SEO attack aimed at someone else's site.
Link velocity matters most as a diagnostic tool. It doesn't directly decide rankings the way domain authority or relevance does, but sharp unnatural changes in either direction, a spike or a sudden drop, are exactly the kind of pattern that triggers manual reviews or algorithmic link discounting. Anchor text distribution and referring domain diversity usually confirm what the velocity chart already suggested.
A steady drip of new links looks like a growing business. A sudden flood looks like a purchase order.
How to calculate it
Link velocity = (new backlinks this period minus new backlinks previous period) as a rate over time
Worked example. Your site gained 12 new referring domains in January and 40 in February with no corresponding increase in content output or PR activity. That's a sharp velocity spike worth investigating rather than celebrating.
The Australian context
Australia's smaller media and publisher landscape means natural link velocity tends to be lower in absolute numbers than equivalent US or UK sites, simply because there are fewer domains to link from. This makes sudden spikes more visible and more suspicious to Google's systems relative to a business's size and history. A local Australian service business jumping from near-zero to fifty new links in a month stands out far more than the same jump would for a global brand with thousands of existing referring domains.
Where people get this wrong
Related terms
Common questions
Is a high link velocity always a bad sign?
Not necessarily. A sudden spike triggered by genuine viral content or major PR coverage is fine because it's explainable and tends to come from diverse, relevant domains. The problem is a spike with no explainable cause, especially from low-quality or unrelated sites.
How often should I check my link velocity?
Monthly is usually enough for most businesses. Checking weekly can create noise and false alarms since natural link growth is uneven. Look for sustained trend changes across two or three months rather than single-week movements.
Can slow link velocity hurt my rankings?
A flat or declining link velocity won't directly penalise you, but it usually means your content isn't earning fresh attention. Over time, competitors with steadier link growth will outpace you on relevance and authority signals.
What tools measure link velocity?
Ahrefs, SEMrush and Moz all show referring domain growth over time in their backlink reports. Search Console shows total links but not velocity trends as clearly. Any tool that lets you chart new referring domains by month will work.
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About New Rebellion
New Rebellion is a marketing intelligence consultancy. We build tools, score Australian businesses on how their marketing actually performs, and publish Debrief every day. This dictionary is part of how we work in the open.
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