ottosenprop.com website review

4 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.0 s.

The page has 4,145 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

About 294 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 150 ms faster on a phone.

Shopify costs a phone 110 ms of main-thread work and 424 KiB of downloads while your page loads. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.

tidio.co costs a phone 84 ms of main-thread work and 515 KiB of downloads while your page loads. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.

About 40 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 290 ms faster on a phone.

7 third-party services load with your homepage (Shopify, tidio.co and Bugsnag and others), adding 967 KiB and 201 ms of main-thread time.

8 files are served with short cache lifetimes, so returning visitors download them again (66 KiB).

2 long tasks block the main thread while loading, the longest for 61 ms. During a long task the page ignores taps.

Polyfills for old browsers add 17 KiB JavaScript that modern phones do not need.

Critical files load one after another instead of in parallel (3 chains). Preconnecting to key origins and preloading the hero image shortens the chain.

Scripts make the browser recalculate the layout repeatedly while the page loads, which wastes processor time on phones.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 86 ms to 109 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

The page becomes fully interactive after 7.0 s. Good is under 3.8 s.

Your largest element takes 3.5 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image.

2 images have no width and height attributes, so the layout jumps as each one loads.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' largest content (lcp) went from 1.9 s to 1.8 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 2.4 MB in 188 requests on a phone: scripts 1,001 KiB (64), other files 815 KiB (103) and fonts 366 KiB (10). Under 2 MB keeps phones on slow connections fast.

By the Sustainable Web Design model, a visit to your homepage emits about 0.68 g of CO₂e: 81.5 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

2 elements use ARIA attributes their role does not allow, which confuses screen readers.

2 dropdowns have no label.

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

2 links inside paragraphs rely on colour alone to stand out.

1 image has no alt text, which hurts accessibility and image search.

All page content should be contained by landmarks: 101 elements on the page fail this check, rated moderate by axe-core.

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

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

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.

Page should contain a level-one heading: 1 element on the page fails this check, rated moderate by axe-core.

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

4 form fields have no label, so screen readers announce an empty box and autofill guesses.

Headings skip levels (h2 → h6), which makes the page harder to scan with a screen reader.

There is no <h1>, so neither visitors nor Google get a clear main headline.

Your title is only 17 characters: “OTTOSEN PROPELLER”. Between 30 and 65 characters leaves room to say what you do and for whom.

Structured data found (Organization and WebSite) but with 1 problem, for example “WebSite: potentialAction.target is not an absolute URL ("https://ottosenprop.com/search?q={search_term_string}")”.

4 links have no real href, so search engines can't follow them.

The homepage links to 433 pages on ottosenprop.com and 11 external pages.

There is no https://ottosenprop.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.

https://ottosenprop.com/collections/all, https://ottosenprop.com/pages/b2bsignupform and https://ottosenprop.com/pages/facility have no meta description, so Google writes the search snippet from whatever text it finds.

Your homepage links to 3 pages by a URL that isn't their canonical one, for example https://ottosenprop.com/collections/parts/PARTS, whose canonical is https://ottosenprop.com/collections/parts/parts. Linking straight to the canonical URL saves crawlers a detour and keeps ranking signals on one address.

https://ottosenprop.com/collections/all, https://ottosenprop.com/collections/parts/PARTS, https://ottosenprop.com/collections/propellers/PROPELLERS+HARTZELL+McCAULEY+SENSENICH+FIXED-PITCH+2-BLADE+3-BLADE+4-BLADE+5-BLADE, https://ottosenprop.com/collections/blades/BLADES+HARTZELL-BLADES+McCAULEY-BLADES, https://ottosenprop.com/pages/faqs-manuals and https://ottosenprop.com/pages/b2bsignupform have no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 15 pages linked from your homepage (of 188 found) and read each the way a search engine does.

On a phone, there is no call to action on the first screen: visitors have to scroll to find out what to do next.

Social proof on the homepage: 1 trust badge. Pairing it with named testimonials or customer logos makes it far more convincing.

No analytics or tag manager detected in the HTML, so you can't measure whether any of these fixes work.

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

The homepage carries about 364 words of visible text.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics and Google Tag Manager (measured from a US location before any click). No consent tool was detected. Visitors from the EU, UK and several US states must be asked first.

Opening the homepage sets 9 cookies (measured from a US location before any click).

No known cookie consent tool loads with the page. Some sites build their own banner, and some only show one to visitors from the EU.

Loading the homepage contacts 17 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.