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How risky is your top 5 pages' traffic?

21 October 2026

In what your website is worth we saw that a site leaning on a few pages sells for less. The same thing that worries a buyer should worry you. This post asks how much of your traffic hangs on your top 5 pages, and what you lose if one of them drops.

Why a few pages carry most sites

Search traffic is lopsided. A post that ranks near the top for a popular question can bring more visits than fifty posts that rank on page two.

• The share from your top 5 says how exposed you are. If five pages bring half your visits, half your income depends on five rankings.
• The share from your single biggest page says how much one bad week can cost. One page at 30% of your traffic is a single point of failure.
• Rankings move without warning. Google runs several core updates a year, and a page can drop from one day to the next.
• A dropped page often comes back slowly or not at all - the rest of the site has to grow to fill the hole.

Work out your concentration risk

Type your visits a month, how many pages get visits, the share from your top 5 and from your biggest page, how much that page would drop, what 1,000 visits earn you and how fast your traffic grows. The calculator rates your risk, shows what a drop costs in visits and rands, and charts the recovery over two years.

Prefer a full page? Open the traffic concentration risk calculator on CalcSA. To spread readers from your top pages to the rest, the internal links calculator puts a number on one more link per post.

Worked example: the calculator's defaults

A site with 10,000 visits a month across 50 pages. Its top 5 pages bring 45% of the visits, and the biggest one brings 20%. It earns an estimated R180 per 1,000 visits - R1,800 a month - and grows 2% a month. Then the biggest page loses half its visits.

• Medium risk on our rule of thumb - 45% from five pages.
• The top 5 bring 4,500 visits and R810 a month - 45% of the income from 10% of the pages.
• A top-5 page averages 900 visits; each of the other 45 averages 122 - 7.4 times less.
• The drop costs 1,000 visits a month - 10% of all traffic, R180 a month, R2,160 a year.
• If all five top pages lost half, it would cost 2,250 visits - R405 a month, R4,860 a year.
• At 2% growth the site is back to 10,000 visits in month 6, but stays about 10% below where it would have been.

Three more cases, same defaults except the one shown:

• Top 5 at 25%, biggest page at 8%: low risk - the drop costs 400 visits and R864 a year, back in month 3.
• Top 5 at 70%, biggest page at 40%: high risk - the drop costs 2,000 visits and R4,320 a year, back in month 12.
• Flat traffic instead of 2% growth: the site never gets back to 10,000 visits on its own.

Estimates. The 50% drop, the R180 per 1,000 visits and the low/medium/high bands (under 30% low, 50% or more high) are our assumptions, as in the calculator - not published benchmarks. Your WebCounter pages report shows your own top pages.

Two years after the biggest page drops, by how big it was

Same site, same 10,000 visits and 2% growth a month. The biggest page loses half its visits in month 1 - when it brought 20% of the traffic, and when it brought 35%:

• The bigger the page, the longer the hole - back to 10,000 visits in month 6 at 20%, month 10 at 35%.
• The gap never closes on its own - two years on, the site is still 1,608 or 2,814 visits a month behind.
• Growth hides the damage - the counter climbs again, so it is easy to miss what the drop really cost.

Reading your counter for this

Your WebCounter counter shows visits by page, so the top 5 share takes a minute to work out. No counter yet? Get your free WebCounter counter - it takes a minute and costs nothing.

• Top 5 share is the visits to your five busiest pages divided by all visits, for one month.
• Check it every month - a share creeping up means the rest of the site is not keeping pace.
• Watch your biggest page week by week - a sudden drop there shows up long before the monthly total does.
• Count bots out - a page that bots hit hard can look like a top page when people do not read it.

Sources

• Google updates its ranking systems several times a year: Google Search Central, Google Search core updates - we did not re-check the current update list.
• The 50% drop, the R180 per 1,000 visits and the risk bands are our estimates - no single published benchmark was found for how much traffic a site's top pages should carry.
• Calculator: CalcSA, Traffic concentration risk.

Estimates only. How much a page drops, and whether it comes back, depends on why it dropped; your own pages report is the test.