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postcodebase.com

https://postcodebase.com· First analyzed 11 May 2026· Updated 11 May 2026
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postcodebase.com
Desktop screenshot of postcodebase.com
Mobile screenshot of postcodebase.com
Mobile

Sponsored

Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.26.2.167

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

terin.ns.cloudflare.com.ursula.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
482 ms10%
Speed Index
627 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
947 KB
171 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupal

Technology Stack

12 Technologies Detected

Advertising

4
Google AdsGoogle AdSenseCriteoOutbrain

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQuery

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Material Icons

Fonts

1
Google Fonts

Payments

1
Square

CDN

1
Cloudflare

SEO Analysis

C62/100
17
10
0
Meta Tags7/15
Content10/12
Headings6/8
Technical19/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
P
postcodebase.compostcodebase.com

Home | PostCodeBase.com ✉️

This is a professional postal code / ZIP code website, it currently provides postcode inquiry service around hundreds of countries in 50+ languages. There ar...

Description truncated.
Title Length26 chars

Recommended: 50-60 chars (~162px / 580px)

Description Length240 chars

Recommended: 120-160 chars

Issues (0)

    10 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    141 URLs

    robots.txt

    215 rules

    Sitemap reference found

    Allows all crawlers

    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

    F37/100
    Bot Access
    20/25
    Machine Read.
    4/25
    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.txt
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    Text ratio:11%
    Words:8,585
    Token eff.:Excessive
    Sections/1K:0.5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary85w
    Descriptive Headingsavg 4.1w
    Canonical URL
    Open Graph0/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (11)
    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
    84/100
    12
    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
    13/20
    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
    6/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

    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.
    61/100
    B
    96 mg
    CO₂e / view
    947.2 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    109 mg
    vs
    Returning (cached)
    55 mg
    Annual (10K/mo)
    11.5 kg
    Emission Segments
    Data Center
    5 mg
    Network
    28 mg
    Device
    63 mg
    Resource Breakdown
    JavaScript
    413.4 KB
    Images
    372.8 KB
    CSS
    145.5 KB
    Fonts
    6.2 KB
    HTML
    9.3 KB
    Green Hosting Verified
    Cloudflare
    GWF Verified
    2 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    0%Critical
    Critical / Transactional

    HTTPS

    WAF

    43d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Google Trust Services

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-256

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2+H3

    Valid From

    25.03.2026

    Valid Until

    23.06.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    postcodebase.com*.postcodebase.com

    SHA-256 Fingerprint

    9A:DA:78:8B:4D:58:AE:93:FA:38:B2:39:E9:78:17:A2:84:78:82:E3...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    access-control-allow-origin
    *
    age
    1195447
    alt-svc
    h3=":443"; ma=86400
    cache-control
    🔵 1 Week(public, max-age=2073600)
    cf-cache-status
    HIT
    cf-ray🇫🇷 Paris
    9fa022c57f12ad3a-CDG
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    68

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (3)

    linda.mx.cloudflare.net
    amir.mx.cloudflare.net
    isaac.mx.cloudflare.net

    Domain Information

    postcodebase.com

    Domain Age
    14y 10m

    Created

    18.07.2011

    Expires

    18.07.2033

    Last Updated

    26.08.2023

    Registrar

    Alibaba Cloud Computing (Beijing) Co., Ltd.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Quantcast Choice

    Cookie Consent Banner
    Quantcast Choice
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Quantcast Choice
    Privacy policy page linked
    Legitimate interest basis 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.
    C
    61/100
    Mobile Friendly11 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,initial-scale=1,maximum-scale=1,user-scalable=no
    4 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Helvetica + Open Sans

    WCAG Partial
    65/100
    Readability
    /30
    12/30

    12px · LH 1.33

    Hierarchy
    /20
    15/20

    1.73x ratio

    WCAG
    /25
    18/25

    1:1 min contrast

    Performance
    /25
    20/25

    2 fonts · 3 req

    Heading Font

    Helvetica

    Sans21px

    Body Font

    Open Sans

    Sans12px

    Contrast Ratio

    1:1

    1 issue

    Reading Comfort

    ~43 CPL

    Narrow lines
    21px
    h1
    21px
    h2
    16px
    h3
    19px
    h4
    12px
    p
    Minor Second
    Scale

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

    ⚠️ Tight line spacing (1.33). Increase to 1.4–1.6 for better readability.

    ❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

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

    ⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ Lean font stack: 2 font families keeps load times fast.

    GGoogle FontsBuy on MyFontsFlesch 0

    Color Palette

    6 unique colors
    6.01:1 AA Dark
    #626365
    Other· 36.3%
    #ffffff
    Background· 21.7%
    #060646
    Primary· 35.400000000000006%
    #42455f
    Secondary· 3.6%
    #4c6483
    Secondary· 1.2%

    Business & Marketing Stack

    2 Tools Detected

    Advanced

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    1
    Google AdsEnterprise

    Ad platforms and retargeting pixels

    2

    Categories

    2

    Total Tools

    1

    Enterprise

    0

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Ad Networks

    Google AdSenseMedia.netSovrnPubMaticOpenXIndex Exchange

    Sponsored

    Scripts & Styles

    12 Resources

    7
    Scripts
    5
    Styles
    4
    Async
    1
    Defer

    Top Script Sources

    pagead2.googlesyndication.com(2)fundingchoicesmessages.google.com(2)postcodebase.com(1)googletagmanager.com(1)static.cloudflareinsights.com(1)

    Website Identity

    postcodebase.com

    14 years old
    Location detected: 🇨🇦 Canadavia ip
    Alibaba Cloud Computing (Beijing) Co., Ltd.en

    Sponsored

    Last analyzed: 11 May 2026 at 09:25

    Historical Analysis & Change Tracking