coravin.ca website review

5 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.4 s.

A phone's processor spends 4.8 s on main-thread work while loading, 2.0 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

8 third-party services load with your homepage (Google Tag Manager, Klaviyo and Shopify and others), adding 1.3 MB and 929 ms of main-thread time.

Your mobile performance score is 82. Pages that score under 90 lose visitors before the first paint.

Google Tag Manager costs a phone 426 ms of main-thread work and 379 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 348 KiB of JavaScript is downloaded but never used on this page.

11 long tasks block the main thread while loading, the longest for 346 ms. During a long task the page ignores taps.

Klaviyo costs a phone 216 ms of main-thread work and 539 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.

7 images could be 251 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

The page has 1,674 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

29 files are served with short cache lifetimes, so returning visitors download them again (229 KiB).

About 96 KiB of CSS is downloaded but never applied on this page.

Web fonts hide text while they load. Setting font-display: swap shows text immediately (about 50 ms).

Polyfills for old browsers add 19 KiB JavaScript that modern phones do not need.

9 KiB could be saved by minifying CSS.

8 KiB could be saved by minifying JavaScript.

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.

The page becomes fully interactive after 20.8 s. Good is under 3.8 s.

The first text or image appears after 2.7 s on a phone. Good is under 1.8 s.

Visually, the page fills in at 4.4 s (Speed Index). Good is under 3.4 s.

Scripts block taps and scrolling for 343 ms in total while the page loads. Good is under 200 ms.

Your largest element takes 2.7 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “EARLY BLACK FRIDAY: UP TO 45% OFF BY-THE-GLASS SYSTEMS”.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 121 ms to 129 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' largest content (lcp) went from 1.5 s to 1.3 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 8.3 MB in 298 requests on a phone: media 3.9 MB (1), scripts 1.5 MB (119) and images 1.5 MB (39). Under 2 MB keeps phones on slow connections fast.

3 images (179 KiB) are JPEG, PNG or GIF. The same pictures as WebP or AVIF are usually much smaller at the same quality, and every current browser shows them.

1 image further down the page (79 KiB) download before anyone scrolls to it. Adding loading="lazy" lets the first screen load first.

By the Sustainable Web Design model, a visit to your homepage emits about 2.34 g of CO₂e: 280.8 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

4 tap targets are too small or too close together to hit reliably with a finger.

1 text element doesn't have enough contrast against the background to read easily, especially outdoors on a phone.

Scrollable region must have keyboard access: 1 element on the page fails this check, rated serious by axe-core.

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

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.

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

Headings skip levels (h3 → h6 and h2 → h4), which makes the page harder to scan with a screen reader.

Your title is 67 characters, so Google will cut it off around 60: “Coravin Wine By-the-Glass Systems and Accessories | US – Coravin US”.

Structured data found (Organization, WebPage and WebSite) but with 1 problem, for example “Organization: url points at a different host (https://www.coravin.com)”.

The homepage links to 105 pages on coravin.ca and 34 external pages.

There is no /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.

We fetched 15 pages linked from your homepage (of 40 found) and read each the way a search engine does.

1 image failed to load on a phone, for example https://lantern.roeye.com/track.php?fingerprint=&referrer=&landingpage=https%3A%2F%2Fwww.coravin.ca%2F&useragent=Mozilla%2F5.0%20(iPhone%3B%20CPU%20iPhone%20OS%2017_5%20like%20Mac%20OS%20X)%20AppleWeb.

The page uses 2 deprecated browser APIs that will stop working in future browsers (“Fenced Frame API is deprecated and scheduled for removal.”).

1 third-party cookie is set on load; browsers are restricting these, so whatever relies on them breaks.

6 errors were logged to the browser console while the page loaded, for example “Failed to load resource: net::ERR_FAILED”.

Chrome logged issues while loading the page (“Cookie”).

http://coravin.ca does not redirect to https, so some visitors land on the insecure version.

HSTS is set, but max-age is 91 days; one year is the recommended minimum.

No Referrer-Policy header, so full URLs can leak to the sites you link to.

No Permissions-Policy header to switch off camera, microphone and location for embedded content.

X-XSS-Protection is set to “1; mode=block”; the header is deprecated and can introduce bugs. Use 0 or remove it.

There is no /.well-known/security.txt telling researchers how to report a security problem to you.

coravin.ca's DNS answers are not signed. DNSSEC stops attackers forging them to send visitors or email elsewhere; most registrars switch it on in a click, though most sites still run without it.

Social proof on the homepage: 4 testimonial or review blocks. Pairing it with named testimonials or customer logos makes it far more convincing.

No phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.

The homepage carries about 906 words of visible text.

coravin.ca has no DMARC record, so nothing tells receivers what to do with mail that fails SPF or DKIM. Gmail and Yahoo require DMARC from bulk senders.

coravin.ca has no SPF record, so mail servers can't tell which servers may send email as you. Your mail lands in spam more often, and anyone can send mail pretending to be you.

coravin.ca has no MX record, so it receives no email. SPF -all and DMARC reject still matter: they stop others sending mail as you.

Email authentication: SPF record 25 points, plus 15 when it ends in -all (10 for ~all); DMARC record 25, plus 25 for a reject policy (15 for quarantine); a DKIM key on a common selector 10.

Before a visitor clicks anything, the page loads Criteo, Google Ads, Google Analytics, Google Tag Manager and Klaviyo and 2 mores (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 26 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 51 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.