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lumentum.com

https://lumentum.com· First analyzed 14 May 2026· Updated 14 May 2026
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lumentum.com
Desktop screenshot of lumentum.com
Mobile screenshot of lumentum.com
Mobile

Sponsored

Hosting Provider

Incapsula Inc

IP Address

45.60.34.159

Site Location

🇬🇧 United Kingdomvia ip

Server Location

🇬🇧 London, United Kingdom

ASN

AS19551

Organization

Incapsula Inc

CDN

CloudFront

Nameservers

udns2.cscdns.uk.udns1.cscdns.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
467 ms10%
Speed Index
607 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.3 MB
86 requests

Image Optimization

Lazy LoadWebPResponsiveVercel Image Optimization
0–49
50–89
90–100

Architecture Stack

Hybrid
⚡ SSG
Frontend
Framework
Next.js
Styling
Tailwind CSS
CMS
Drupal
Infrastructure
Platform
AWS CloudFront
CDN
CloudFront

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

6 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Advertising

1
LinkedIn Ads

SEO Analysis

B74/100
23
6
0
Meta Tags9/15
Content10/12
Headings7/8
Technical20/25
E-E-A-T0/7
Images7/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile3/4
Indexability3/3
L
lumentum.comlumentum.com

Homepage | Lumentum

Discover how Lumentum enables innovation through optical and photonic technologies for cloud networking, 3D sensing, lasers, and advanced manufacturing.

Title Length19 chars

Recommended: 50-60 chars (~124px / 580px)

Description Length152 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    306 URLs

    robots.txt

    41 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    10/100
    Poor
    3 13 2

    This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

    Sponsored

    AI & LLM Readiness

    D49/100
    Bot Access
    20/25
    Machine Read.
    16/25
    Schema Data
    0/25
    Citation
    13/25

    AI Bot Access

    14/14 accessible
    AI Search
    OAI-SearchBot
    PerplexityBot
    Claude-SearchBot
    Gemini-Deep-Research
    DuckAssistBot
    Training
    GPTBot
    ClaudeBot
    Google-Extended
    Meta-ExternalAgent
    Bytespiderinfo
    Amazonbot
    Applebot-Extended
    CCBotinfo
    Fetch
    ChatGPT-User

    Machine Readability

    llms.txtinvalid
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    nav
    Text ratio:1%
    Words:532
    Token eff.:Optimal
    Sections/1K:1.9
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary18w
    Descriptive Headingsavg 4.7w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (10)
    AI readiness recommendation preview...
    Upgrade to view recommendations

    Sponsored

    Accessibility

    WCAG 2.1 Compliance

    Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
    A
    85/100
    14
    Passed
    3
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    17/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    15/15
    Verifies form fields have labels, error messages are clear, and inputs are properly associated.
    Color & Contrast
    14/15
    Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
    Keyboard & Focus
    8/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    11/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    1 recommendation
    • •Accessibility recommendation preview...
    Upgrade to view recommendations

    Carbon Footprint

    SWDM v4 · Eco-Score

    Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
    49/100
    C
    168 mg
    CO₂e / view
    1.3 MB
    Page Weight
    70%
    Cleaner Than
    New Visitor
    192 mg
    vs
    Returning (cached)
    96 mg
    Annual (10K/mo)
    20.1 kg
    Emission Segments
    Data Center
    38 mg
    Network
    40 mg
    Device
    90 mg
    Resource Breakdown
    JavaScript
    463.0 KB
    Images
    141.3 KB
    CSS
    49.9 KB
    Fonts
    639.3 KB
    HTML
    32.1 KB
    Other
    31.8 KB
    Green Hosting Not Verified
    Incapsula Inc
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A+

    Security Score

    91%Excellent
    Interactive

    HTTPS

    WAF

    72d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    GlobalSign nv-sa

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    27.04.2026

    Valid Until

    26.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (9)

    www.lumentum.cnlumentum.cnneophotonics.com*.cloudlight.com.hk*.dc.lumentuminc.net*.lumentum.comcloudlight.com.hk*.neophotonics.com+1 more

    SHA-256 Fingerprint

    DF:6E:33:C8:3A:E0:79:83:FB:0B:40:13:B1:5E:49:42:A5:E5:A3:21...

    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(no-store)
    content-encoding
    📦 Gzip(gzip)
    content-security-policy
    default-src 'self'; base-uri 'self'; object-src 'none'; form...
    content-type
    text/html; charset=utf-8
    date
    Thu, 14 May 2026 15:38:35 GMT
    etag
    "fhuzddg0js3vmt"
    Good Warning Issue

    Email Infrastructure

    Mimecast

    Score

    93

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (2)

    us-smtp-inbound-2.mimecast.com
    us-smtp-inbound-1.mimecast.com

    Domain Information

    lumentum.com

    Domain Age
    16y 6m

    Created

    06.11.2009

    Expires

    06.11.2026

    Last Updated

    02.11.2025

    Registrar

    CSC Corporate Domains, Inc.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    TrustArc

    Cookie Consent Banner
    TrustArc
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: TrustArc
    Privacy policy page linked
    Data Protection Officer mentioned

    Mobile Compatibility

    Viewport & Responsive Test

    Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
    B
    78/100
    Mobile Friendly2 breakpoints
    Viewport Meta
    The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
    Responsive Design
    Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
    Touch Icons
    Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
    Readable Font Size
    Base font size should be at least 16px on mobile to ensure text is readable without zooming.
    Relative Units
    Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
    No H-Scroll Risk
    No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
    Tap Targets OK
    Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
    No Fixed Widths
    No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
    Viewport
    width=device-width

    Typography & Readability

    clanPro

    WCAG Partial
    64/100
    Readability
    /30
    18/30

    16px · LH 1.38

    Hierarchy
    /20
    14/20

    3x ratio

    WCAG
    /25
    16/25

    1:1 min contrast

    Performance
    /25
    16/25

    1 font · 9 req

    Heading Font

    clanPro

    Sans48px

    Body Font

    clanPro

    Sans16px

    Contrast Ratio

    1:1

    22 issues

    Reading Comfort

    ~38 CPL

    Narrow lines
    48px
    h1
    36px
    h2
    20px
    h4
    16px
    p

    ✅ Excellent readability: 16px body text is ideal for all devices.

    ⚠️ Tight line spacing (1.38). Increase to 1.4–1.6 for better readability.

    ❌ Very complex text: Flesch score 20/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 22 elements below WCAG AA threshold (min 1.0:1).

    ⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ Strong hierarchy: Headlines are 3.0x larger than body text.

    Buy on MyFontsFlesch 20

    Color Palette

    6 unique colors
    21:1 AAA Dark
    #000000
    Background· 44.9%
    #ffffff
    Background· 15.700000000000001%
    #040d18
    Primary· 22.4%

    Business & Marketing Stack

    3 Tools Detected

    Enterprise

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    1
    LinkedIn AdsEnterprise

    Ad platforms and retargeting pixels

    Privacy & Cookies

    1
    TrustArcEnterprise

    Cookie consent and privacy compliance tools

    3

    Categories

    3

    Total Tools

    2

    Enterprise

    0

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    25 Resources

    20
    Scripts
    5
    Styles
    1
    Async
    15
    Defer

    Top Script Sources

    local(18)snap.licdn.com(1)consent.trustarc.com(1)

    Website Identity

    lumentum.com

    16 years old
    Location detected: 🇬🇧 United Kingdomvia ip
    CSC Corporate Domains, Inc.📧 Mimecastxx

    Sponsored

    Last analyzed: 14 May 2026 at 15:39

    Historical Analysis & Change Tracking