StackOptic
Back to Search
openprinting.org favicon

openprinting.org

https://openprinting.org· First analyzed 03 May 2026· Updated 03 May 2026
Export
openprinting.org
Desktop screenshot of openprinting.org
Mobile screenshot of openprinting.org
Mobile

Sponsored

Hosting Provider

University of Oregon

IP Address

140.211.9.53

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Corvallis, United States

ASN

AS3701

Organization

University of Oregon

Server

GitHub.com

CDN

Fastly

Nameservers

ns3.dnsimple.com.ns4.dnsimple-edge.org.ns1.dnsimple.com.ns2.dnsimple-edge.net.

Performance

98

Core Web Vitals

Weight

First Contentful Paint
883 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
394 KB
19 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Platform
GitHub Pages
CDN
Fastly

Technology Stack

2 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

SEO Analysis

B70/100
21
6
0
Meta Tags5/15
Content10/12
Headings8/8
Technical18/21
E-E-A-T5/7
Images2/7
Links5/5
URL5/5
Social3/5
Freshness2/4
Mobile4/4
Indexability3/3
O
openprinting.orgopenprinting.org

OpenPrinting - OpenPrinting

We make printing just work!

Title Length27 chars

Recommended: 50-60 chars (~164px / 580px)

Description Length27 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Local SEO

    Local Search Readiness

    10/100
    Poor
    3 13 1

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

    Sponsored

    AI & LLM Readiness

    D56/100
    Bot Access
    20/25
    Machine Read.
    14/25
    Schema Data
    3/25
    Citation
    19/25

    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:11%
    Words:324
    Token eff.:Optimal
    Sections/1K:40.1
    Depth:1/5

    Structured Data

    1 JSON-LD
    Person×1.3

    Citation Readiness

    Opening Summary22w
    Descriptive Headingsavg 1.9w
    Canonical URL
    Open Graph3/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (5)
    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
    10
    Passed
    3
    Critical
    1
    Warnings
    Images & Alt Text
    15/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    18/20
    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
    9/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    1/15
    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.
    55/100
    A
    49 mg
    CO₂e / view
    393.8 KB
    Page Weight
    90%
    Cleaner Than
    New Visitor
    56 mg
    vs
    Returning (cached)
    28 mg
    Annual (10K/mo)
    5.8 kg
    Emission Segments
    Data Center
    11 mg
    Network
    12 mg
    Device
    26 mg
    Resource Breakdown
    JavaScript
    134.5 KB
    Images
    151.5 KB
    CSS
    102.7 KB
    HTML
    5.1 KB
    Green Hosting Not Verified
    University of Oregon
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    76%Good
    Static / Informational

    HTTPS

    No WAF

    63d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    06.04.2026

    Valid Until

    05.07.2026

    Subject Alternative Names (6)

    *.github.com*.github.io*.githubusercontent.comgithub.comgithub.iogithubusercontent.com

    SHA-256 Fingerprint

    EA:69:BC:71:1C:B9:D4:56:98:D2:FD:AA:48:54:D7:DC:08:6A:CD:3A...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    access-control-allow-origin
    *
    age
    0
    cache-control
    🟡 600s(max-age=600)
    content-encoding
    📦 Gzip(gzip)
    content-length
    4971
    Good Warning Issue

    Email Infrastructure

    Forward Email

    Score

    50

    SPF
    DKIM
    DMARC

    MX Records (2)

    mx2.forwardemail.net
    mx1.forwardemail.net

    Domain Information

    openprinting.org

    Domain Age
    23y 11m

    Created

    28.05.2002

    Expires

    28.05.2026

    Last Updated

    24.11.2025

    Registrar

    1API GmbH

    DNSSEC
    Not Enabled

    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 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

    -apple-system

    WCAG Partial
    76/100
    Readability
    /30
    24/30

    23px · LH 1.50

    Hierarchy
    /20
    16/20

    2.31x ratio · ✓ H1→H6

    WCAG
    /25
    16/25

    1:1 min contrast

    Performance
    /25
    20/25

    System fonts

    Heading Font

    -apple-system

    Sans54px

    Body Font

    -apple-system

    Sans23px

    Contrast Ratio

    1:1

    14 issues

    Reading Comfort

    ~38 CPL

    Narrow lines
    54px
    h1
    31px
    h2
    23px
    p

    ✅ Excellent readability: 23px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

    ⚠️ Hard to read: Flesch score 37/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 14 elements below WCAG AA threshold (min 1.0:1).

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

    ✅ Strong hierarchy: Headlines are 2.3x larger than body text.

    Flesch 37

    Color Palette

    5 unique colors
    4.35:1 AA Large Light
    #eeeeee
    Background· 44.699999999999996%
    #6c715e
    Secondary· 9%
    #572b33
    Primary· 11%
    #c8d0d2
    Secondary· 2.9%

    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

    7 Resources

    2
    Scripts
    5
    Styles
    0
    Async
    0
    Defer

    Top Script Sources

    local(1)cdn.jsdelivr.net(1)

    Website Identity

    OpenPrinting

    Person
    openprinting.github.io/
    23 years old
    Location detected: 🇺🇸 United Statesvia ip
    1API GmbH📧 Forward Emailen

    Social Profiles

    LinkedInGitHub

    Sponsored

    Last analyzed: 03 May 2026 at 04:09

    Historical Analysis & Change Tracking