SEO Traffic Loss Calculator

Three ways a traffic loss number goes wrong before you read it

Subtracting two totals is the easy part. Almost every mistake happens in the setup, and all three of these produce a confident number that is simply not true.

From one number to a list of pages worth opening

A sitewide total tells you there is a problem. It does not tell you where to look, and the honest answer to that is almost never the pages with the biggest percentage drops. Load a page level export and the tool ranks every URL by absolute loss, gives each one as a share of the total, and reports how many URLs account for 80 percent of the damage. A loss concentrated in nine pages is a different investigation from the same loss spread across nine hundred.

What each evidence status means

None of these is a cause. They describe what the two numbers support saying about a URL, which is what decides the order you check things in.

Frequently asked questions

How do you calculate lost organic traffic?

Rescale the baseline to the length of the period you are measuring, then subtract. Expected current traffic is baseline traffic divided by baseline days, multiplied by current days. The signed change is actual current traffic minus that expected figure, and the loss is that change when it is negative. Subtracting two raw totals is only correct when both periods are exactly the same number of days, which is rarely true once you compare a month against a month or a quarter against the one before it. A 31 day period against a 28 day period looks like a 10 percent drop even when nothing changed at all.

How much revenue did my traffic drop cost?

Multiply the lost sessions by your organic session conversion rate and by revenue per conversion. Four thousand lost sessions at a 2 percent conversion rate and 100 dollars per order gives an 8,000 dollar scenario. Treat that as a scenario rather than a measurement: it assumes the traffic you lost would have converted at the same rate as the traffic that stayed, which is usually optimistic, because the queries that disappear first tend to be the informational ones. If you need the real figure, read it out of the systems that recorded the money over the same dates.

Can I use Search Console clicks with my Google Analytics conversion rate?

Not without measuring the relationship first. Search Console counts clicks on a search result. Analytics counts sessions that began on your site. They apply different filtering, different attribution and different identity rules, so the two totals never match and the gap is not a constant across sites. This calculator blocks that combination by default. If you want to use it, divide your organic sessions by your Search Console clicks over the same dates, enter that ratio, and the tool will convert clicks to sessions using your own measured number and say so in the output.

What is the difference between a traffic drop and a seasonal dip?

A seasonal dip repeats. The way to tell them apart is to compare against the same calendar window a year earlier rather than against the period immediately before, which is why this calculator has a same period last year button. If the current period is down against the preceding period but flat against the same period last year, you are looking at a season, not a problem. Shifting back 364 days rather than a calendar year keeps the days of the week aligned, which matters because search traffic is strongly weekly.

Which pages should I investigate first after a traffic drop?

The ones carrying the most absolute loss, not the largest percentage drops. A page falling from 8 clicks to 2 is a 75 percent drop and 6 clicks. A page falling from 4,000 to 3,000 is a 25 percent drop and a thousand clicks. Load a page level export into the CSV mode here and it ranks every URL by absolute loss, shows each one as a share of the total, and tells you how many URLs account for 80 percent of it. That last number is the useful one, because a handful of pages points at something specific and a long flat tail points at something sitewide.

Why does a page show as missing rather than zero?

Because those are different facts and collapsing them invents a loss. Search Console omits rows below its reporting threshold, so a URL absent from the current export might have dropped to zero, or it might have dropped to two clicks and fallen out of the report. This calculator counts a measured zero as traffic gone and flags an absent row separately as unconfirmed, so you check it directly before you count it as lost. Most calculators treat the two identically and overstate the loss.

Does a traffic drop mean my pages were deindexed?

Not on this evidence. Google lists technical problems, security or manual actions, ranking movement, changes in what people search for, and seasonality as separate causes of a decline, and two traffic totals cannot distinguish between them. Deindexing is worth eliminating first only because it is the cheapest to check: a page that is no longer in the index cannot rank, so confirming index status takes minutes and rules out an entire branch. If the pages are still indexed, the drop is a ranking or demand question and none of the indexing fixes apply.

Should I use CPC to value lost organic traffic?

Only as a replacement cost, and label it that way. Multiplying lost clicks by cost per click tells you what buying the same volume of traffic would cost, which is a legitimate budgeting figure. It is not revenue, and it is not what the traffic earned. Paid clicks on the same terms do not convert at the same rate as organic clicks, and the terms with the highest CPC are rarely the ones you lost. This tool reports that model under the label advertising replacement value and never calls it revenue.