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tb-m.com website review

Visit site (opens in a new tab)Reviewed 20 October 202641 issues · 84 checks

This review found 41 issues worth fixing on tb-m.com, 19 of them high impact, across 84 checks. The most urgent: use efficient cache lifetimes. Your full playbook turns these into prioritised fixes alongside reviews, competitors and channels.

  1. Homepage
  2. Phone render
  3. Links and pages
  4. Google PageSpeed

Google PageSpeed Insights (opens in a new tab), mobile

Real-visitor load time (LCP)75th percentile, phones
1.9 s1.5 sMay 2Oct 171.6 s
Show as table
DateReal-visitor load time (LCP)
May 2, 20261.8 s
May 9, 20261.8 s
May 16, 20261.7 s
May 23, 20261.6 s
May 30, 20261.7 s
Jun 6, 20261.7 s
Jun 13, 20261.7 s
Jun 20, 20261.7 s
Jun 27, 20261.6 s
Jul 4, 20261.6 s
Jul 11, 20261.7 s
Jul 18, 20261.6 s
Jul 25, 20261.6 s
Aug 1, 20261.7 s
Aug 8, 20261.7 s
Aug 15, 20261.7 s
Aug 22, 20261.7 s
Aug 29, 20261.6 s
Sep 5, 20261.6 s
Sep 12, 20261.7 s
Sep 19, 20261.7 s
Sep 26, 20261.8 s
Oct 3, 20261.8 s
Oct 10, 20261.7 s
Oct 17, 20261.6 s
Real-visitor tap response (INP)75th percentile, phones
106 ms86 msMay 2Oct 1788 ms
Show as table
DateReal-visitor tap response (INP)
May 2, 2026101 ms
May 9, 202694 ms
May 16, 202694 ms
May 23, 202692 ms
May 30, 202694 ms
Jun 6, 202697 ms
Jun 13, 2026104 ms
Jun 20, 2026101 ms
Jun 27, 2026100 ms
Jul 4, 202696 ms
Jul 11, 202692 ms
Jul 18, 202697 ms
Jul 25, 202696 ms
Aug 1, 202696 ms
Aug 8, 202698 ms
Aug 15, 202695 ms
Aug 22, 202696 ms
Aug 29, 202694 ms
Sep 5, 202692 ms
Sep 12, 202691 ms
Sep 19, 202692 ms
Sep 26, 202692 ms
Oct 3, 202692 ms
Oct 10, 202693 ms
Oct 17, 202688 ms

Chrome UX Report (opens in a new tab): real Chrome visitors over rolling 28-day periods.

One score from every part of this review. How it works

Full-page screenshot of tb-m.com (desktop) rendered by Google PageSpeed Insights

How it loaded on a phone

  1. tb-m.com at 0.5 s0.5 s
  2. tb-m.com at 1.0 s1.0 s
  3. tb-m.com at 1.5 s1.5 s
  4. tb-m.com at 2.0 s2.0 s
  5. tb-m.com at 2.6 s2.6 s
  6. tb-m.com at 3.1 s3.1 s
  7. tb-m.com at 3.6 s3.6 s
  8. tb-m.com at 4.1 s4.1 s

Speed

13 to fix30
  • Use efficient cache lifetimes

    3.1 s · 6.9 MB

    27 files are served with short cache lifetimes, so returning visitors download them again (6.9 MB).

  • Render-blocking requests

    8.7 s

    6 files block the first paint until they finish downloading. Deferring or inlining them could save about 8.7 s.

  • Improve image delivery

    2.5 s · 832 KiB

    11 images could be 832 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 2.5 s faster on a phone.

  • Reduce unused CSS

    1.9 s · 314 KiB

    About 314 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 1.9 s faster on a phone.

  • wovn.io adds 1.6 s

    1.6 s

    wovn.io costs a phone 1.6 s of main-thread work and 170 KiB of downloads while your page loads. That alone is enough to make taps feel slow. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.

  • Reduce unused JavaScript

    1.2 s · 176 KiB

    About 176 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 1.2 s faster on a phone.

  • Mobile performance score: 30

    30/100

    Your mobile performance score is 30 (desktop: 49). Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.

  • 6 third-party services on the page

    6 third-party services load with your homepage (wovn.io, Google Tag Manager and JSDelivr CDN and others), adding 1.7 MB and 1.9 s of main-thread time.

  • 8 long tasks on the main thread

    8 long tasks block the main thread while loading, the longest for 582 ms. During a long task the page ignores taps.

  • Minify CSS

    300 ms · 42 KiB

    42 KiB could be saved by minifying CSS.

  • Main-thread work: 3.0 s

    A phone's processor spends 3.0 s on main-thread work while loading, 2.1 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

  • Google Tag Manager adds 251 ms

    251 ms

    Google Tag Manager costs a phone 251 ms of main-thread work and 309 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.

  • Google Fonts adds 0 ms

    0 ms

    Google Fonts costs a phone 0 ms of main-thread work and 1.2 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.

  • Chained critical requests

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

  • Forced reflow

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

1 checks passed
  • Server response: 4 ms

    4 ms

    Your server sent the HTML in 4 ms, well inside Google's 600 ms guideline.

Core Web Vitals

6 to fix100
  • First Contentful Paint: 8.6 s

    8.6 s

    The first text or image appears after 8.6 s on a phone. Good is under 1.8 s.

  • Largest Contentful Paint: 16.7 s

    16.7 s

    Your largest element takes 16.7 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the element shown below.

  • Time to Interactive: 16.8 s

    16.8 s

    The page becomes fully interactive after 16.8 s. Good is under 3.8 s.

  • Total Blocking Time: 1.8 s

    1.8 s

    Scripts block taps and scrolling for 1.8 s in total while the page loads. Good is under 200 ms.

  • Speed Index: 8.6 s

    8.6 s

    Visually, the page fills in at 8.6 s (Speed Index). Good is under 3.4 s.

  • 4 images without width and height

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

  • Tap response (INP) held steady for real visitors

    -7%

    Over the last 25 four-week periods to 2026-10-17, real Chrome visitors' tap response (inp) went from 101 ms to 88 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

  • Largest content (LCP) held steady for real visitors

    -7%

    Over the last 25 four-week periods to 2026-10-17, real Chrome visitors' largest content (lcp) went from 1.8 s to 1.6 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

7 checks passed
  • Passes Core Web Vitals for real visitors

    Real Chrome users on phones pass Google's Core Web Vitals on this page (28-day field data from the Chrome UX Report (opens in a new tab)).

  • Real-user LCP: 2.4 s

    2.4 s

    Real visitors wait 2.4 s for the largest content to appear (75th percentile). Good is under 2.5 s.

  • Real-user INP: 106 ms

    106 ms

    Real visitors wait 106 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.

  • Real-user CLS: 0.02

    0.02

    For real visitors the layout shifts by 0.02 (75th percentile). Good is under 0.1.

  • Real-user FCP: 1.6 s

    1.6 s

    Real visitors see the first content after 1.6 s (75th percentile). Good is under 1.8 s.

  • Real-user TTFB: 720 ms

    720 ms

    Real visitors wait 720 ms for your server to start answering (75th percentile). Good is under 800 ms.

  • Cumulative Layout Shift: 0

    0

    The layout barely moves while loading (CLS 0, good is under 0.1).

Images and page weight

5 to fix43
  • Page weight: 8.7 MB in 81 requests

    8.7 MB

    Your homepage downloads 8.7 MB in 81 requests on a phone: media 5.4 MB (1), images 1.5 MB (19) and fonts 961 KiB (39). Under 2 MB keeps phones on slow connections fast.

  • An image on the first screen is lazy-loaded

    [email protected] is on the first screen but marked loading="lazy", so the browser waits before fetching it and the page looks finished later. Load it eagerly (and give it fetchpriority="high" if it is the main image).

  • 4 images in older formats

    4 images (528 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.

  • 3 images far larger than shown

    287 KiB

    3 images are downloaded at several times the size a phone draws them, for example [email protected] at 467 px wide, shown at 92 px. Resized copies would save about 287 KiB.

  • 3 images below the first screen load straight away

    3 images further down the page (456 KiB) download before anyone scrolls to them. Adding loading="lazy" lets the first screen load first.

  • About 2.5 g of CO₂ per visit

    2.46 g

    By the Sustainable Web Design model, a visit to your homepage emits about 2.46 g of CO₂e: 295.1 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

Accessibility

4 to fixGoogle 7391
  • <dt> and <dd> elements must be contained by a <dl> (6 elements)

    <dt> and <dd> elements must be contained by a <dl>: 6 elements on the page fail this check, rated serious by axe-core.

  • <dl> elements must only directly contain properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements (1 element)

    <dl> elements must only directly contain properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements: 1 element on the page fails this check, rated serious by axe-core.

  • 2 images without alt text

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

  • 29 links without text

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

1 checks passed
  • 33 automated accessibility rules passed

    axe-core 4.13.0, the open-source engine behind most accessibility testing tools, ran 37 WCAG 2.2 A/AA and best-practice rules on the phone render: 33 passed and 4 failed. 2 mores need a person to judge. Automated rules catch about a third of accessibility problems; the rest need manual testing.

SEO

3 to fixGoogle 8589
  • 6 H1 headlines

    There are 6 <h1> headlines (“”, “Pickup News” and “素材・製品・サービスOur Innovation”). One clear main headline is easier for people and search engines.

  • Structured data has 1 problem

    Structured data found (BreadcrumbList, Organization, WebPage and WebSite) but with 1 problem, for example “Organization: logo is not an absolute URL ("tb-m.com/wp-content/uploads/2022/11/tbm-logo.svg")”.

  • 4 links with vague text

    4 links use generic text like “click here” or “learn more”, which tells Google nothing about the page behind them.

  • 144 internal links, 23 external

    The homepage links to 144 pages on tb-m.com and 23 external pages.

6 checks passed
  • Meta description: 71 characters

    Your meta description is 71 characters: “TBMはカーボン・ソリューション企業として、LIMEXと資源循環の革新を通じ、環境価値を経済価値へ変革し、サステナビリティ革命をリードします。”.

  • Title: 30 characters

    Your title is a healthy 30 characters: “株式会社TBM カーボン・ソリューション「CO₂の再資源化」”.

  • Canonical URL set

    The canonical URL is https://tb-m.com/.

  • Open Graph tags complete

    Open Graph tags are complete, so shared links show a title, description and image.

  • robots.txt in place

    robots.txt is in place and points crawlers to your sitemap.

  • XML sitemap found

    Your XML sitemap is reachable at https://tb-m.com/sitemap.xml.

AI search readiness

1 to fix88
  • Some text only appears after JavaScript runs

    31%

    The HTML your server sends has 126 of the 411 words a browser shows. AI crawlers don't run JavaScript, so they miss the rest.

3 checks passed
  • AI answer engines may read the site

    Your robots.txt lets the crawlers behind ChatGPT search, Claude and Perplexity read the site and cite it in answers.

  • Organization data: 6 of 6 facts

    Your Organization JSON-LD gives name, url, logo, sameAs (social profiles), description and contact details.

  • llms.txt published

    The site publishes https://tb-m.com/llms.txt (4 KiB, 10 links), a plain-text guide to the site for AI tools.

Other pages

100
  • 15 pages with very little text

    https://tb-m.com/business, https://tb-m.com/business/ccu, https://tb-m.com/business/material, https://tb-m.com/business/application, https://tb-m.com/business/circulation and https://tb-m.com/rd and 9 others have under 150 words in the HTML. Thin pages rarely rank; if the text loads with JavaScript, crawlers that don't run it see even less.

  • 15 internal pages checked

    We fetched 15 pages linked from your homepage (of 43 found) and read each the way a search engine does.

7 checks passed
  • Linked pages load

    All 15 pages we checked loaded without an error.

  • Canonical URLs point to themselves

    No page we checked hands its ranking to a different URL.

  • Every page has a meta description

    All 15 pages that loaded have a meta description.

  • Titles are unique

    Every page we checked has its own title.

  • Every page has an H1

    Each page we checked has a main headline.

  • No linked page is hidden from search

    None of the pages we checked carries a noindex tag.

  • Every page has a title

    All 15 pages that loaded have a <title>.

Best practices

2 to fixGoogle 10087
  • 2 small tap targets

    2 of 8 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

  • 1 JavaScript error while loading

    1 error was logged to the browser console while the page loaded, for example “Failed to load resource: net::ERR_FAILED”.

1 checks passed
  • Mobile viewport set

    The page declares a mobile viewport.

Content and conversion

6 to fix36
  • No call to action on the first screen

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

  • No calls to action

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

  • No social proof

    No testimonials, customer logos, ratings or customer counts on the homepage: nothing tells a new visitor that others already trust you.

  • 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.

  • No phone number on the homepage

    A local customer looking to call finds no phone number on the homepage. Add one, ideally as a tap-to-call link.

  • No direct contact details

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

  • No opening hours

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

  • No form on the homepage

    There is no form on the homepage, so every lead has to click through to another page first.

  • 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 411 words of copy

    The homepage carries about 411 words of visible text.

1 checks passed
  • Analytics in place

    Analytics detected: Google Tag Manager.

Privacy and tracking

1 to fix
  • 3 trackers load before any consent

    3

    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.

  • 5 cookies set on arrival

    5

    Opening the homepage sets 5 cookies (measured from a US location before any click).

  • No consent tool detected

    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.

  • 11 other companies contacted

    Loading the homepage contacts 11 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.

Security, domain, email and software versions

The security, domain and email checks, software and plugin versions, and any app with a known security problem are visible only to people at tb-m.com, because details like these could help someone attack a site. Every review keeps them private, whatever they found.

Upkeep, stack and company

Stack

CMS
WordPress
Framework
jQuery
Analytics
Google Tag Manager

Upkeep, stack, hiring and company data from programmable.info

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