HTTPS vs HTTP in the top 100,000 domains

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The first thing we did was analyze the top 100,000 domains (using SEMrush ranking) from the US database and we observed that, in the last three years, the use of HTTPS has tripled across the websites analyzed.

To see if the site was on HTTP or HTTPS, we looked at the first URL in the Organic Positions report and saw if "https://" appeared in the results.

This report lists the page's traffic percentage, so the first URL is the page that receives the most organic traffic.

We then repeat this step using historical data for each year.

Migrate to HTTPS - Top 100K domains

In the chart above we can see a steady trend of increasing HTTPS usage over the years across the top 100,000 domains.

From 2014 to 2017, the percentage of domains in this group where we find the use of HTTPS has increased from 7.6% to 31.5%.

HTTPS vs HTTP in the top 5,000 domains by industry
The next thing we looked at was the 5,000 domains that the SEMrush ranking offered us, divided into 25 business sectors to analyze the use of HTTPS in 2017 by sector.

We found that of these 5,000 websites, 2,042 (41%) were using HTTPS.

Migrate to HTTPS - Top 5K domains

Culture and entertainment was the industry with the highest number of HTTPS websites among the 5,000 domains analyzed.

The industries with the highest percentage of HTTPS were Finance, Internet & Technology, and Business & Industry.

The industries with the lowest percentage of HTTPS were News and Sports.

Additionally, you can see how prevalent HTTPS usage is in these industries with the daily rate provided by SEMrush Sensor .

If you scroll down the page and look at where it says “Incidence of SERP features, %” email database usa you can see the percentage of pages with HTTPS that rank on the first pages of Google.

Click on any of the listed industries to see the popularity data displayed in the SERP structure.

Migrate to HTTPS - SEMrush Sensor

SEMrush Sensor can track the presence of HTTPS in top search results.