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spaceref.com

https://spaceref.com· First analyzed 25 Apr 2026· Updated 25 Apr 2026
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spaceref.com
Desktop screenshot of spaceref.com
Mobile screenshot of spaceref.com
Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

54.188.4.191

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Portland, United States

ASN

AS16509

Organization

AWS EC2 (us-west-2)

Server

Pagely-ARES/1.22.2

Nameservers

ns09.domaincontrol.com.ns10.domaincontrol.com.

Performance

95

Core Web Vitals

Weight

First Contentful Paint
1.1 s10%
Speed Index
1.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
31 KB
36 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms

Technology Stack

9 Technologies Detected

Plugins

5
Paid Memberships ProPmpro MailchimpAdd To AnyAdrotate Pro
Yoast SEO

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQueryv3.6.0

CSS Frameworks

1
Tailwind CSS

SEO Analysis

B70/100
19
9
0
Meta Tags5/15
Content12/12
Headings5/8
Technical20/21
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social3/5
Freshness4/4
Mobile3/4
Indexability3/3
S
spaceref.comspaceref.com

Home - SpaceRef

Space news and reference site.

Title Length15 chars

Recommended: 50-60 chars (~95px / 580px)

Description Length30 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    163 URLs

    163 sub-sitemaps

    robots.txt

    3 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    13/100
    Poor
    4 12 1

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

    Sponsored

    AI & LLM Readiness

    D51/100
    Bot Access
    20/25
    Machine Read.
    13/25
    Schema Data
    4/25
    Citation
    14/25

    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:4%
    Words:967
    Token eff.:Optimal
    Depth:1/5

    Structured Data

    3 JSON-LD
    WebSiteBreadcrumbListSearchAction

    Citation Readiness

    Opening Summary29w
    Descriptive Headings
    Canonical URL
    Open Graph1/3
    Twitter Card1/3
    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.
    B
    73/100
    11
    Passed
    2
    Critical
    2
    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
    10/15
    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
    9/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    2/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    3 recommendations
    • •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.
    78/100
    A+
    3 mg
    CO₂e / view
    31.4 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    4 mg
    vs
    Returning (cached)
    2 mg
    Annual (10K/mo)
    384 g
    Emission Segments
    Data Center
    <0.001 g
    Network
    <0.001 g
    Device
    2 mg
    Resource Breakdown
    JavaScript
    15.5 KB
    Images
    342 B
    HTML
    15.6 KB
    Green Hosting Verified
    Amazon Web Services (AWS)
    Provider Match
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    36d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (4096 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    03.03.2026

    Valid Until

    01.06.2026

    Subject Alternative Names (1)

    spaceref.com

    SHA-256 Fingerprint

    D5:38:6E:63:22:AB:0E:1F:EA:6A:5C:AF:AF:25:74:57:9E:52:23:E8...

    Top Recommendations

    Security recommendation preview

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    Upgrade to view header details

    HTTP Headers

    Developer Console

    content-encoding
    📦 Gzip(gzip)
    content-length
    15692
    content-type
    text/html; charset=UTF-8
    date
    Sat, 25 Apr 2026 16:24:58 GMT
    link
    <https://spaceref.com/wp-json/>; rel="https://api.w.org/", <...
    server
    Pagely-ARES/1.22.2
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    20

    SPF
    DKIM
    DMARC

    MX Records (7)

    aspmx3.googlemail.com
    aspmx.l.google.com
    alt1.aspmx.l.google.com
    aspmx2.googlemail.com

    +3 more

    Domain Information

    spaceref.com

    Domain Age
    26y 9m

    Created

    16.07.1999

    Expires

    16.07.2026

    Last Updated

    17.07.2025

    Registrar

    GoDaddy.com, LLC

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    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
    69/100
    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

    Typography & Readability

    -apple-system

    WCAG Partial
    76/100
    Readability
    /30
    20/30

    16px · LH 1.67

    Hierarchy
    /20
    17/20

    1.88x ratio · ✓ H1→H6

    WCAG
    /25
    17/25

    3.54:1 min contrast

    Performance
    /25
    22/25

    System fonts

    Heading Font

    -apple-system

    Sans30px

    Body Font

    -apple-system

    Sans16px

    Contrast Ratio

    3.54:1

    33 issues

    Reading Comfort

    Single Font Family

    left aligned
    30px
    h1
    16px
    p
    Minor Third
    Scale

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

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

    ⚠️ Partial contrast: 33 elements below WCAG AA threshold (min 3.5:1).

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

    ✅ System fonts: Zero font loading delay — best possible LCP impact.

    Flesch 0

    Color Palette

    8 unique colors
    5:1 AA Light
    #ffffff
    Background· 48.00000000000001%
    #766d71
    Other· 6%
    #000d42
    Primary· 21.2%
    #7e97b7
    Secondary· 7.9%
    #452830
    Secondary· 5.4%
    #4d5f7f
    Secondary· 3.7%

    Business & Marketing Stack

    1 Tools Detected

    Growing

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    1

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    19 Resources

    13
    Scripts
    6
    Styles
    3
    Async
    2
    Defer

    Top Script Sources

    s45588.pcdn.co(5)static.addtoany.com(3)googletagmanager.com(2)google-analytics.com(1)code.jquery.com(1)

    Website Identity

    Home - SpaceRef

    Space news and reference site.

    spaceref.com/
    26 years old
    Location detected: 🇺🇸 United Statesvia ip
    GoDaddy.com, LLC📧 Google Workspaceen-US

    Sponsored

    Last analyzed: 25 Apr 2026 at 16:25

    Historical Analysis & Change Tracking