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perma.cc

https://perma.cc· First analyzed 23 Apr 2026· Updated 23 Apr 2026
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perma.cc
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Mobile

Sponsored

Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.17.62.185

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

jack.ns.cloudflare.com.jean.ns.cloudflare.com.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
775 ms10%
Speed Index
1.0 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.2 MB
29 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Technology Stack

4 Technologies Detected

Analytics

2
MatomoSentry

CSS Frameworks

1
Tailwind CSS

CDN

1
Cloudflare

SEO Analysis

C66/100
19
7
0
Meta Tags9/15
Content12/12
Headings7/8
Technical13/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
P
perma.ccperma.cc

Perma.cc

Broken links are everywhere. Perma helps authors and journals create permanent links for citations in their published work.

Title Length8 chars

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

Description Length124 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    68 rules

    Local SEO

    Local Search Readiness

    6/100
    Poor
    2 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

    D43/100
    Bot Access
    20/25
    Machine Read.
    12/25
    Schema Data
    0/25
    Citation
    11/25

    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
    navheader/footer
    Text ratio:18%
    Words:806
    Token eff.:Optimal
    Sections/1K:16.1
    Depth:2/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary16w
    Descriptive Headingsavg 4.6w
    Canonical URL
    Open Graph2/3
    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
    84/100
    12
    Passed
    1
    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
    15/15
    Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
    Keyboard & Focus
    13/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    4/15
    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.
    64/100
    B
    124 mg
    CO₂e / view
    1.2 MB
    Page Weight
    70%
    Cleaner Than
    New Visitor
    141 mg
    vs
    Returning (cached)
    71 mg
    Annual (10K/mo)
    14.8 kg
    Emission Segments
    Data Center
    6 mg
    Network
    36 mg
    Device
    81 mg
    Resource Breakdown
    JavaScript
    396.8 KB
    Images
    601.8 KB
    CSS
    218.1 KB
    HTML
    6.7 KB
    Green Hosting Verified
    Cloudflare
    GWF Verified
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    C

    Security Score

    69%Fair
    Interactive

    HTTPS

    WAF

    58d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Google Trust Services

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-256

    TLS Version

    TLSv1.2

    HTTP Protocol

    HTTP/2

    Valid From

    22.03.2026

    Valid Until

    20.06.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    perma.cc*.perma.cc

    SHA-256 Fingerprint

    30:03:0E:C0:15:2F:21:6F:EE:58:B8:3F:C7:2E:24:A0:58:1A:2C:66...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cf-cache-status
    DYNAMIC
    cf-ray🇩🇪 Frankfurt
    9f0ddb1828f09c0c-FRA
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html; charset=utf-8
    cross-origin-opener-policy
    same-origin
    date
    Thu, 23 Apr 2026 15:21:04 GMT
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    90

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (5)

    aspmx3.googlemail.com
    alt2.aspmx.l.google.com
    aspmx2.googlemail.com
    aspmx.l.google.com

    +1 more

    Domain Information

    perma.cc

    Domain Age
    12y 9m

    Created

    29.07.2013

    Expires

    29.07.2026

    Last Updated

    29.06.2025

    Registrar

    NameCheap, Inc.

    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
    63/100
    Mobile Friendly
    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, shrink-to-fit=no
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Roboto

    WCAG Partial
    76/100
    Readability
    /30
    25/30

    20px · LH 1.55

    Hierarchy
    /20
    14/20

    2.8x ratio

    WCAG
    /25
    17/25

    3.74:1 min contrast

    Performance
    /25
    20/25

    System fonts

    Heading Font

    Roboto

    Sans56px

    Body Font

    Roboto

    Sans20px

    Contrast Ratio

    3.74:1

    19 issues

    Reading Comfort

    ~40 CPL

    Narrow lines
    56px
    h1
    36px
    h2
    19px
    h3
    20px
    p

    ✅ Excellent readability: 20px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.55 ratio (ideal range 1.4–1.6).

    ⚠️ Partial contrast: 19 elements below WCAG AA threshold (min 3.7:1).

    ❌ Broken heading hierarchy: 2 level skip(s). Screen readers rely on sequential headings (h1→h2→h3).

    ✅ Strong hierarchy: Headlines are 2.8x larger than body text.

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

    Flesch 67

    Color Palette

    9 unique colors
    3.62:1 AA Large Light
    #ffffff
    Background· 82.8%
    #888685
    Other· 3.1%
    #e1e7ec
    Secondary· 2.7%
    #347de1
    Primary· 2.6%
    #c4cbd3
    Secondary· 2%
    #2f456a
    Secondary· 1.9%
    #89a5c4
    Secondary· 1.2%

    Business & Marketing Stack

    2 Tools Detected

    Growing

    Behavior Analytics

    2
    Matomo (Piwik)Mid-Market
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    2

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    3 Resources

    2
    Scripts
    1
    Styles
    1
    Async
    1
    Defer

    Top Script Sources

    analytics.lil.tools(1)local(1)

    Website Identity

    perma.cc

    12 years old
    Location detected: 🇨🇦 Canadavia ip
    NameCheap, Inc.📧 Google Workspaceen-us

    Social Profiles

    X (Twitter)GitHub

    Sponsored

    Last analyzed: 23 Apr 2026 at 15:21

    Historical Analysis & Change Tracking