The website metric that actually moved rankings
Across the largest container lines, one website behaviour tracked search ranking and the others did not. The lesson points to clarity and speed over vanity measures.
Marketing budgets in maritime tend to favour what is easy to count. Web analytics platforms report a long list of behaviours, and the temptation is to treat all of them as signals worth chasing. A study of the sector's largest operators offers a sharper picture of which behaviour actually relates to how a website ranks in search.
What the study measured
Kontogiorgou, Sakas and colleagues, writing in Modern Economy in 2023, analysed 180 days of web-analytics data drawn from the websites of the five largest container lines: Maersk, MSC, COSCO, CMA CGM and Evergreen. The aim was to test which website behaviours related to search-engine ranking. The candidate behaviours were familiar ones that appear on most analytics dashboards: bounce rate, pages per visit, time on site, and number of new visitors.
The result narrowed quickly. Bounce rate was the only behaviour with a statistically significant relationship to ranking. A lower bounce rate was associated with a higher search ranking. Pages per visit, time on site, and number of new visitors showed no significant relationship to where these sites placed in search results.
Why the finding is worth attention
The behaviours that turned out to be insignificant are the ones marketing teams most often quote. Time on site and pages per visit feel like engagement, and they are simple to report in a monthly summary. The study suggests that, for ranking, they carried no measurable weight among these operators. Bounce rate, which records whether a visitor leaves almost immediately, was the behaviour that tracked ranking.
That points to a specific definition of a working website. The first job is to hold the visitor past the opening moment. Everything that happens deeper in a session matters for other reasons, yet the entry point is where the ranking-relevant behaviour was observed.
The limits of the sample
The sample is the five mega-carriers. These are global liner businesses with vast traffic volumes, large content libraries, and search competition that operates at a scale most maritime firms never face. A specialist operator, a regional agency, or a niche service provider runs a different kind of website with different visitor intent. Copying a liner-scale playbook wholesale would misread the evidence. The value of the study lies in the direction it indicates, which is that one entry-point behaviour outweighed several deeper-engagement metrics, applied with judgement to a smaller operation.
The implication for a maritime website
The highest-leverage work on a maritime website is stopping the immediate exit. In practical terms that means clear positioning above the fold, fast loading, and an obvious statement of what the firm does and who it serves. A visitor who can read, within seconds, that a site belongs to a bunker supplier serving the eastern Mediterranean, or a class-approved repair yard, or a crewing agency for offshore support vessels, has a reason to stay. A visitor who meets a slow page and a vague headline has a reason to leave.
Speed reinforces the same goal. A page that loads slowly raises the chance of an exit before any message lands, and on mobile connections at sea or in port that risk grows. Clarity and speed work together to keep the visitor present long enough to engage.
Chasing session-duration or pageview counts is a weaker use of effort. Those figures can rise without any improvement in how the site performs against search or against the visitor's first decision to stay. Effort spent making a site instantly legible and quick to load addresses the behaviour the study found to matter.
Ranking as part of business development
For a maritime operator, search ranking and discoverability belong inside the business-development funnel. Maritime buyers research suppliers online before making contact. A charterer, a procurement lead, or a technical superintendent often forms a shortlist from search results and supplier websites well before a first conversation. A site that ranks and then holds the visitor is doing early funnel work that would otherwise fall to sales effort.
Read that way, bounce rate stops being a vanity figure on a dashboard and becomes a measure of whether the website earns the next step. The study from the container lines does not hand smaller operators a formula. It identifies where the leverage sat for the largest players, and it frames the question every maritime firm can ask of its own site: does a visitor arriving from search find, fast, a clear reason to stay.