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centrum.com

https://centrum.com· First analyzed 24 May 2026· Updated 24 May 2026
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centrum.com
Desktop screenshot of centrum.com
Mobile screenshot of centrum.com
Mobile

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Hosting Provider

Microsoft Azure
azure.microsoft.com

IP Address

52.177.50.145

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Boydton, United States

ASN

AS8075

Organization

Microsoft Azure Cloud (eastus2)

Server

Apache

Nameservers

ns-cloud-c4.googledomains.com.ns-cloud-c2.googledomains.com.ns-cloud-c3.googledomains.com.ns-cloud-c1.googledomains.com.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
776 ms10%
Speed Index
1.0 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
211 KB
38 requests

Image Optimization

Lazy LoadWebP
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Adobe Experience Manager

Technology Stack

7 Technologies Detected

CSS Frameworks

2
Tailwind CSS
Bootstrap

Fonts

1
Google Fonts

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Other

1
AB Tasty

Web Servers

1
Apache

SEO Analysis

A85/100
27
2
0
Meta Tags15/15
Content10/12
Headings8/8
Technical22/25
E-E-A-T2/7
Images6/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
C
centrum.comcentrum.com

Complete Multivitamins with Micronutrients | Centrum

Learn how Centrum Complete multivitamins have micronutrients that feed your body's cells. Discover how our supplements support your overall health.

Title Length52 chars

Recommended: 50-60 chars (~319px / 580px)

Description Length147 chars

Recommended: 120-160 chars

Issues (0)

    2 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    201 URLs

    robots.txt

    3 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    22/100
    Needs Work
    6 11 1

    Sponsored

    AI & LLM Readiness

    D52/100
    Bot Access
    20/25
    Machine Read.
    13/25
    Schema Data
    4/25
    Citation
    15/25

    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.txt
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    nav
    Text ratio:8%
    Words:2,039
    Token eff.:Optimal
    Sections/1K:2
    Depth:1/5

    Structured Data

    2 JSON-LD
    WebSiteSearchAction
    sameAs entity links

    Citation Readiness

    Opening Summary12w
    Descriptive Headingsavg 6.1w
    Canonical URL
    Open Graph2/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (7)
    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+
    92/100
    17
    Passed
    0
    Critical
    1
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    20/20
    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
    15/15
    Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
    Keyboard & Focus
    15/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    7/15
    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.
    85/100
    A+
    21 mg
    CO₂e / view
    211.4 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    24 mg
    vs
    Returning (cached)
    12 mg
    Annual (10K/mo)
    2.6 kg
    Emission Segments
    Data Center
    1 mg
    Network
    6 mg
    Device
    14 mg
    Resource Breakdown
    Images
    187.4 KB
    Fonts
    1022 B
    HTML
    22.1 KB
    Other
    895 B
    Green Hosting Verified
    Microsoft Azure
    Provider Match
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    76%Good
    Interactive

    HTTPS

    No WAF

    263d

    Certificate Details

    Type

    Organization Validated (OV)

    Certificate Authority

    Sectigo Limited

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.2

    HTTP Protocol

    HTTP/2

    Valid From

    11.02.2026

    Valid Until

    11.02.2027

    OCSP Stapling

    Enabled

    Subject Alternative Names (20)

    centrumcolombia.comcalpol.co.zacalpol.com.phcalpoltablets.co.zacaltrate.cacaltrate.co.zacaltrate.comcaltrate.com.au+12 more

    SHA-256 Fingerprint

    8A:F6:B3:10:62:3A:1C:99:3F:07:AF:8D:72:03:48:50:1C:1A:FF:6A...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    cache-control
    🟡 0s(public, max-age=0, s-maxage=86400)
    content-encoding
    📦 Gzip(gzip)
    content-security-policy
    frame-ancestors 'self';
    content-type
    text/html; charset=UTF-8
    date
    Sun, 24 May 2026 17:10:54 GMT
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    75

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    mail.digitalpfizer.com

    Domain Information

    centrum.com

    Domain Age
    27y 4m

    Created

    12.01.1999

    Expires

    12.01.2027

    Last Updated

    01.04.2025

    Registrar

    SafeNames Ltd.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    OneTrust

    Cookie Consent Banner
    OneTrust
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: OneTrust
    Privacy policy page linked

    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.
    C
    68/100
    Mobile Friendly1 breakpoint
    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, initial-scale=1.0
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Fira Sans + Montserrat

    WCAG Partial
    67/100
    Readability
    /30
    13/30

    12px · LH 1.20

    Hierarchy
    /20
    16/20

    3.5x ratio · ✓ H1→H6

    WCAG
    /25
    18/25

    4.5:1 min contrast

    Performance
    /25
    20/25

    2 fonts · 1 req

    Heading Font

    Fira Sans

    Sans42px

    Body Font

    Montserrat

    Sans12px

    Contrast Ratio

    4.5:1

    1 issue

    Reading Comfort

    ~42 CPL

    Narrow lines
    42px
    h1
    42px
    h2
    28px
    h3
    12px
    p

    ❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

    ⚠️ Tight line spacing (1.20). Increase to 1.4–1.6 for better readability.

    ⚠️ Hard to read: Flesch score 33/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 4.5:1).

    ✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

    ✅ Strong hierarchy: Headlines are 3.5x larger than body text.

    GGoogle FontsFlesch 33

    Color Palette

    6 unique colors
    Light
    #ffffff
    Background· 81.8%
    #007680
    Primary· 7.3999999999999995%
    #d6dedf
    Secondary· 3%
    #7a9ca2
    Secondary· 2.7%
    #355359
    Secondary· 1%

    Business & Marketing Stack

    5 Tools Detected

    Enterprise

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Privacy & Cookies

    1
    OneTrustEnterprise

    Cookie consent and privacy compliance tools

    A/B Testing & Optimization

    1
    AB TastyMid-Market

    Experimentation and conversion optimization

    Reviews & Social Proof

    1
    BazaarvoiceEnterprise

    Customer reviews and testimonials

    4

    Categories

    5

    Total Tools

    2

    Enterprise

    1

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    16 Resources

    13
    Scripts
    3
    Styles
    5
    Async
    1
    Defer

    Top Script Sources

    youtube.com(2)a-cf65.ch-static.com(2)cdn.userway.org(2)googletagmanager.com(1)us-data.centrum.com(1)

    Website Identity

    Centrum

    Centrum

    Corporation
    www.centrum.com/
    27 years old
    Location detected: 🇺🇸 United Statesvia ip
    SafeNames Ltd.en-US

    Social Profiles

    FacebookInstagram

    Sponsored

    Last analyzed: 24 May 2026 at 17:11

    Historical Analysis & Change Tracking