marinerslearningsystem.com website review

Not measured in this review.

• Fails Core Web Vitals for real visitors

  Real Chrome users on phones do not pass Google's Core Web Vitals on your site (28-day field data from the Chrome UX Report (opens in a new tab)). Google uses this in ranking.

• Real-user INP: 273 ms

  273 ms

  Real visitors wait 273 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.

• Tap response (INP) got 99% slower for real visitors

  +99%

  Over the last 25 four-week periods to 2026-11-07, real Chrome visitors' tap response (inp) went from 138 ms to 273 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

• Largest content (LCP) got 11% slower for real visitors

  +11%

  Over the last 25 four-week periods to 2026-11-07, real Chrome visitors' largest content (lcp) went from 1.8 s to 2.0 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

• Page weight: 4.3 MB

  4.3 MB

  Your homepage downloads 4.3 MB on a phone, 119 KiB of it images (3%). Under 2 MB keeps phones on slow connections fast.

• About 1.2 g of CO₂ per visit

  1.23 g

  By the Sustainable Web Design model, a visit to your homepage emits about 1.23 g of CO₂e: 147.7 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

• 7 text elements with low contrast

  7 text elements don't have enough contrast against the background to read easily, especially outdoors on a phone.

  Elements (3)

• Hidden but focusable

  2 elements hidden from screen readers can still receive keyboard focus.

  Elements (2)

• Summary elements must have discernible text (1 element)

  Summary elements must have discernible text: 1 element on the page fails this check, rated serious by axe-core.

  Elements (1)

• All page content should be contained by landmarks (31 elements)

  All page content should be contained by landmarks: 31 elements on the page fail this check, rated moderate by axe-core.

  Elements (3)

• Document should not have more than one banner landmark (1 element)

  Document should not have more than one banner landmark: 1 element on the page fails this check, rated moderate by axe-core.

  Elements (1)

• No main landmark

  The page has no <main> landmark, so screen-reader users cannot jump straight to the content.

  Elements (1)

• Landmarks should have a unique role or role/label/title (i.e. accessible name) combination (1 element)

  Landmarks should have a unique role or role/label/title (i.e. accessible name) combination: 1 element on the page fails this check, rated moderate by axe-core.

  Elements (1)

• 26 links without text

  26 visible links have no text or label, so screen readers cannot say where they go.

  Elements (2)

• 1 form field without a label

  1 form field has no label, so screen readers announce an empty box and autofill guesses.

  View source

• Headings skip levels

  Headings skip levels (h1 → h3, h1 → h3 and h3 → h6), which makes the page harder to scan with a screen reader.

  View sourceElements (3)

• 2 H1 headlines

  There are 2 <h1> headlines (“Start Your Captain's License Training Now” and “Mariners Partnership Opportunities”). One clear main headline is easier for people and search engines.

  View source

• 177 internal links, 14 external

  The homepage links to 177 pages on marinerslearningsystem.com and 14 external pages.

• No llms.txt

  There is no https://marinerslearningsystem.com/llms.txt, a short Markdown guide to your key pages for AI tools (llmstxt.org). It is optional and few AI tools read it yet, so treat it as a cheap extra.

• 1 link to non-canonical URLs

  Your homepage links to 1 page by a URL that isn't its canonical one, for example https://marinerslearningsystem.com/products/oupv-six-pack-captains-license-online-course-and-exam, whose canonical is https://marinerslearningsystem.com/products/captains-license-oupv-six-pack. Linking straight to the canonical URL saves crawlers a detour and keeps ranking signals on one address.

  Elements (1)

• 15 internal pages checked

  We fetched 15 pages linked from your homepage (of 66 found) and read each the way a search engine does.

• 1 broken image

  1 image failed to load on a phone, for example https://bat.bing.com/action/0?ti=17473368&tm=gtm002&Ver=2&mid=bd1bef76-08d0-4867-add6-4fc1b432af7d&bo=1&sid=9f0ac380dc5011f18fa0bbb096492a19&vid=9f0af480dc5011f1ae5809c9c7dc693b&vids=1&msclkid=N&pi=91.

• 5 small tap targets

  5 of 21 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

• 6 JavaScript errors while loading

  6 errors were logged to the browser console while the page loaded, for example “Failed to load resource: the server responded with a status of 404 ()”.

• Local business without LocalBusiness data

  Your homepage shows a street address but no LocalBusiness JSON-LD, so Google and AI assistants have to guess your address, hours and phone from the page text.

  View source

• Thin social proof

  Social proof on the homepage: “Trusted By 200,000+ Students”. Pairing it with named testimonials or customer logos makes it far more convincing.

• No opening hours

  The homepage shows no opening hours. If customers visit or call, show when.

• No map or directions link

  There is no link to Google or Apple Maps. A directions link is one tap for a phone visitor.

• No risk reducer

  No guarantee or risk reducer (money-back, free trial, no credit card) is mentioned, which is often what tips a hesitant visitor.

• About 507 words of copy

  The homepage carries about 507 words of visible text.

• 9 trackers load before any consent

  9

  Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager, Hotjar and HubSpot and 4 mores (measured from a US location before any click). A consent tool (HubSpot cookie banner) is installed; check it blocks these until visitors agree where the law requires it.

• 45 cookies set on arrival

  45

  Opening the homepage sets 45 cookies, 5 of them by other companies (measured from a US location before any click).

• 66 other companies contacted

  Loading the homepage contacts 66 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.