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theopennotebook.com

https://theopennotebook.com· First analyzed 21 May 2026· Updated 21 May 2026
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theopennotebook.com
Desktop screenshot of theopennotebook.com
Mobile screenshot of theopennotebook.com
Mobile

Sponsored

Hosting Provider

Pressable
pressable.com

IP Address

199.16.172.241

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 San Francisco, United States

ASN

AS2635

Organization

Pressable

Server

Nginx

Nameservers

dns1.registrar-servers.com.dns2.registrar-servers.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%
6 MB
174 requests

Image Optimization

Lazy LoadResponsiveUploadcare
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv5.5.9.1
cms
Hello Elementorv3.4.7
by Elementor Team
View Theme

Technology Stack

28 Technologies Detected

Plugins

16
Bluet Keywords Tooltip GeneratorMedia CreditOlevmedia ShortcodesPerfect PullquotesSimple AnnotationsTheopennotebookPojo AccessibilityEle Custom Skin
Elementor
Elementor
Simple LightboxOpen Notebook CarouselOpen Notebook CollapsePost Grid Pro
Make Column Clickable Elementor
Yoast SEO

Libraries

3
jQueryv3.7.1
jQuery UI
Lightbox

UI Components

2
SwiperFancybox

Analytics

2
Google Analytics
Google Analytics 4

Other

1
Lottie

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

SEO Analysis

A83/100
25
7
0
Meta Tags8/15
Content10/12
Headings8/8
Technical23/25
E-E-A-T5/7
Images4/7
Links5/5
URL5/5
Social5/5
Freshness4/4
Mobile3/4
Indexability3/3
T
theopennotebook.comtheopennotebook.com

Home - The Open Notebook

The Open Notebook is a nonprofit organization that helps journalists who cover science improve their skills.

Title Length24 chars

Recommended: 50-60 chars (~154px / 580px)

Description Length108 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    17 URLs

    17 sub-sitemaps

    robots.txt

    9 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    24/100
    Needs Work
    6 12

    Sponsored

    AI & LLM Readiness

    D50/100
    Bot Access
    20/25
    Machine Read.
    8/25
    Schema Data
    8/25
    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:2,885
    Token eff.:Optimal
    Depth:1/5

    Structured Data

    5 JSON-LD
    Organization×1.1WebSiteBreadcrumbListSearchAction
    sameAs entity links

    Citation Readiness

    Opening Summary664w
    Descriptive Headingsavg 3.8w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (9)
    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
    89/100
    15
    Passed
    2
    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
    12/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    10/15
    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.
    26/100
    F
    762 mg
    CO₂e / view
    6.0 MB
    Page Weight
    5%
    Cleaner Than
    New Visitor
    871 mg
    vs
    Returning (cached)
    436 mg
    Annual (10K/mo)
    91.5 kg
    Emission Segments
    Data Center
    170 mg
    Network
    183 mg
    Device
    409 mg
    Resource Breakdown
    JavaScript
    328.5 KB
    Images
    5.0 MB
    CSS
    521.9 KB
    HTML
    158.9 KB
    Other
    301 B
    Green Hosting Not Verified
    Pressable
    6 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    56%Poor
    Interactive

    HTTPS

    No WAF

    76d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Google Trust Services

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    07.05.2026

    Valid Until

    05.08.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (14)

    tls.automattic.comeliosofravenswood.comgerben.blognaturecraftstudios.comtheopennotebook.comtntkarldoyle.comtotalseniorsolutionsusa.comtrendyproducts.blog+6 more

    SHA-256 Fingerprint

    E2:92:C6:29:73:CB:FB:48:45:AC:BD:CD:54:87:CD:ED:2C:7B:82:3C...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    clear
    cache-control
    🟡 91s(max-age=91, must-revalidate)
    content-encoding
    ⚡ Brotli(br)
    content-security-policy
    upgrade-insecure-requests
    content-type
    text/html; charset=UTF-8
    date
    Thu, 21 May 2026 10:14:32 GMT
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    65

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (5)

    eforward2.registrar-servers.com
    eforward1.registrar-servers.com
    eforward4.registrar-servers.com
    eforward5.registrar-servers.com

    +1 more

    Domain Information

    theopennotebook.com

    Domain Age
    15y 9m

    Created

    21.08.2010

    Expires

    21.08.2026

    Last Updated

    22.07.2025

    Registrar

    NameCheap, Inc.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Privacy policy page linked
    Data Protection Officer 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.
    B
    77/100
    Mobile Friendly3 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
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Roboto

    WCAG AA
    77/100
    Readability
    /30
    26/30

    16px · LH 1.50

    Hierarchy
    /20
    14/20

    1.56x ratio · ✓ H1→H6

    WCAG
    /25
    22/25

    4.73:1 min contrast

    Performance
    /25
    15/25

    System fonts

    Heading Font

    Roboto

    Sans25px

    Body Font

    Roboto

    Sans16px

    Contrast Ratio

    4.73:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    ~38 CPL

    Narrow lines
    25px
    h1
    24px
    h2
    20px
    h3
    18px
    h4
    16px
    p

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

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

    ⚠️ Hard to read: Flesch score 41/100. Simplify sentences for wider reach.

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.7:1).

    ✅ 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 41

    Color Palette

    5 unique colors
    3.2:1 AA Large Light
    #ffffff
    Background· 82%
    #9f8b90
    Secondary· 2.4%
    #e7f1fa
    Primary· 9.500000000000002%

    Business & Marketing Stack

    2 Tools Detected

    Growing

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    2

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    30 Resources

    20
    Scripts
    10
    Styles
    6
    Async
    0
    Defer

    Top Script Sources

    theopennotebook.com(13)youtube.com(2)googletagmanager.com(2)google-analytics.com(1)secure.gaug.es(1)

    Website Identity

    The Open Notebook

    The Open Notebook

    Organization

    The Open Notebook is a nonprofit organization that helps journalists who cover science improve their skills.

    www.theopennotebook.com/
    15 years old
    Location detected: 🇺🇸 United Statesvia ip
    NameCheap, Inc.en-US

    Sponsored

    Last analyzed: 21 May 2026 at 10:15

    Historical Analysis & Change Tracking