lcojapan.com website review

The page has 3,517 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

8 third-party services load with your homepage (Google Maps, Shopify and Google Tag Manager and others), adding 14.3 MB and 785 ms of main-thread time.

Shopify costs a phone 167 ms of main-thread work and 13.2 MB 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.

Your mobile performance score is 66. Pages that score under 90 lose visitors before the first paint.

3 files block the first paint until they finish downloading. Deferring or inlining them could save about 700 ms.

About 498 KiB of JavaScript is downloaded but never used on this page.

About 71 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 300 ms faster on a phone.

Google Maps costs a phone 275 ms of main-thread work and 474 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.

A phone's processor spends 2.7 s on main-thread work while loading, 932 ms of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

7 long tasks block the main thread while loading, the longest for 189 ms. During a long task the page ignores taps.

10 files are served with short cache lifetimes, so returning visitors download them again (118 KiB).

Polyfills for old browsers add 10 KiB JavaScript that modern phones do not need.

6 KiB could be saved by minifying CSS.

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

1 image could be 4 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

Your largest element takes 8.7 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “Wagara Collection Handcrafted jewelry from Japan SHOP NOW”.

The page becomes fully interactive after 15.6 s. Good is under 3.8 s.

Visually, the page fills in at 5.1 s (Speed Index). Good is under 3.4 s.

Scripts block taps and scrolling for 244 ms in total while the page loads. Good is under 200 ms.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 92 ms to 112 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 1.4 s to 1.4 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 86.3 MB in 241 requests on a phone: media 83.2 MB (7), scripts 1.4 MB (95) and other files 685 KiB (86). Under 2 MB keeps phones on slow connections fast.

By the Sustainable Web Design model, a visit to your homepage emits about 24.45 g of CO₂e: 2934.3 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

1 frame has no title, so screen-reader users cannot tell what it contains.

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

24 images have no alt text, which hurts accessibility and image search.

Heading levels should only increase by one: 1 element on the page fails this check, rated moderate by axe-core.

Your title is 75 characters, so Google will cut it off around 60: “Japanese jewelry brand based in Tokyo｜L&Co.JAPAN（エルアンドコージャパン） – L&Co. JAPAN”.

Your meta description is 165 characters; Google truncates after about 160, so the end of your pitch is cut.

No favicon is declared in the HTML, so browser tabs and Google's mobile results may show a generic icon.

Your <h1> is empty.

The homepage links to 65 pages on lcojapan.com and 10 external pages.

/en-us/collections/birthstones, /en-us/collections/color-stone-rings, /en-us/collections/unisex, /en-us/collections/necklace, /en-us/collections/ring and /en-us/collections/earrings and 1 other have no meta description, so Google writes the search snippet from whatever text it finds.

/en-us/collections/birthstones, /en-us/collections/traditional-artifacts, /en-us/collections/necklace, /en-us/collections/ring, /en-us/collections/earrings and /en-us/collections/bracelets and 3 others took over 3 s to send their HTML from our server.

We fetched 15 pages linked from your homepage (of 28 found) and read each the way a search engine does.

4 errors were logged to the browser console while the page loaded, for example “Failed to load resource: the server responded with a status of 403 ()”.

1 link to other sites is dead, for example https://l-co-shop.jp/pages/aoyama (404).

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.

lcojapan.com has no CAA record, so any certificate authority may issue a certificate for it. A CAA record naming your provider (for example letsencrypt.org) closes that door.

lcojapan.com'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.

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

We found no call-to-action buttons or links (such as “Book a demo” or “Get a quote”) anywhere on the homepage.

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

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

The homepage has only about 160 words of visible text; thin pages give Google and first-time buyers little to go on.

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

Your phone number appears as text but isn't a tel: link, so phone visitors can't tap to call.

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

lcojapan.com 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.

lcojapan.com 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.

We found no DKIM key on the selectors the big email providers use. If you send through one of them, turning on DKIM signing improves delivery.

lcojapan.com 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 Google Ads, Google Analytics, Google Tag Manager and Meta Pixel (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 11 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 33 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.