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glasp.co

https://glasp.co· First analyzed 02 May 2026· Updated 02 May 2026
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glasp.co
Desktop screenshot of glasp.co
Mobile screenshot of glasp.co
Mobile

Sponsored

Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.26.7.240

Site Location

🇺🇸 San Francisco, United Statesvia schema_nap

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

jen.ns.cloudflare.com.julian.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
376 ms10%
Speed Index
489 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
102 KB
47 requests

Image Optimization

Lazy LoadResponsiveVercel Image Optimization
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Styling
Tailwind CSS
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Technology Stack

5 Technologies Detected

Frameworks

1
Angular

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

CDN

1
Cloudflare

Analytics

1
FullStory

SEO Analysis

A82/100
25
3
0
Meta Tags14/15
Content10/12
Headings8/8
Technical16/21
E-E-A-T5/7
Images7/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
G
glasp.coglasp.co

Glasp: PDF & Web Highlighter for Researchers & Learners

Highlight text on any webpage or PDF for free with Glasp. Collect insights, summarize YouTube videos with AI, and share your learning. Trusted by 1M+ researc...

Description truncated.
Title Length55 chars

Recommended: 50-60 chars (~335px / 580px)

Description Length194 chars

Recommended: 120-160 chars

Issues (0)

    3 issues found

    Upgrade to view details

    Local SEO

    Local Search Readiness

    28/100
    Needs Work
    7 13

    Sponsored

    AI & LLM Readiness

    D52/100
    Bot Access
    20/25
    Machine Read.
    8/25
    Schema Data
    11/25
    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
    nav
    Text ratio:2%
    Words:2,517
    Token eff.:Optimal
    Depth:1/5

    Structured Data

    3 JSON-LD
    FAQPage×1.5Person×1.3Organization×1.1
    sameAs entity links

    Citation Readiness

    Opening Summary1178w
    Descriptive Headingsavg 4.8w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (8)
    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
    83/100
    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
    20/20
    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
    4/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    1 recommendation
    • •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.
    85/100
    A+
    10 mg
    CO₂e / view
    102.1 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    12 mg
    vs
    Returning (cached)
    6 mg
    Annual (10K/mo)
    1.2 kg
    Emission Segments
    Data Center
    <0.001 g
    Network
    3 mg
    Device
    7 mg
    Resource Breakdown
    JavaScript
    5.9 KB
    HTML
    95.5 KB
    Other
    768 B
    Green Hosting Verified
    Cloudflare
    GWF Verified
    2 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A+

    Security Score

    91%Excellent
    Static / Informational

    HTTPS

    WAF

    84d

    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

    26.04.2026

    Valid Until

    25.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    glasp.co*.glasp.co

    SHA-256 Fingerprint

    BC:12:00:A0:CA:C2:5E:0E:D2:47:DA:F6:BA:28:28:EF:F9:C1:4A:AE...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=86400
    cache-control
    🟡 1800s(max-age=1800, s-maxage=31536000)
    cf-cache-status
    HIT
    cf-ray
    9f54b104b89467a1-SJC
    content-encoding
    ⚡ Brotli(br)
    content-security-policy
    default-src 'self' glasp.co glasp.ai; script-src 'self' 'uns...
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    100

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (5)

    alt3.aspmx.l.google.com
    alt4.aspmx.l.google.com
    alt1.aspmx.l.google.com
    aspmx.l.google.com

    +1 more

    Domain Information

    glasp.co

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookiebot

    Cookie Consent Banner
    Cookiebot
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Cookiebot
    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.
    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
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Inter

    WCAG AA
    86/100
    Readability
    /30
    24/30

    16px · LH 1.50

    Hierarchy
    /20
    20/20

    3x ratio · ✓ H1→H6

    WCAG
    /25
    22/25

    6.87:1 min contrast

    Performance
    /25
    20/25

    1 font · 1 req

    Heading Font

    Inter

    Sans48px

    Body Font

    Inter

    Sans16px

    Contrast Ratio

    6.87:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    ~36 CPL

    Narrow lines
    48px
    h1
    36px
    h2
    24px
    h3
    16px
    p

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

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

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.9:1).

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

    ✅ Strong hierarchy: Headlines are 3.0x larger than body text.

    ✅ Lean font stack: 1 font families keeps load times fast.

    Buy on MyFontsFlesch 57

    Color Palette

    5 unique colors
    Light
    #ffffff
    Background· 91.2%
    #e5e9ed
    Secondary· 2.4%
    #5f6679
    Secondary· 2%
    #ccdce9
    Primary· 1.6%

    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

    22 Resources

    20
    Scripts
    2
    Styles
    20
    Async
    0
    Defer

    Top Script Sources

    local(20)

    Website Identity

    Glasp

    Glasp

    Organization

    Glasp is a social web highlighter and AI learning assistant. Capture highlights from articles, PDFs, and videos, organize insights, and use AI to reflect on your learning journey.

    548 Market St, PMB 26241, San Francisco

    94104, San Francisco, CA

    US

    Location detected: 🇺🇸 United States, San Franciscovia schema_nap
    📧 Google WorkspaceenEst. 2021

    Sponsored

    Last analyzed: 02 May 2026 at 05:41

    Historical Analysis & Change Tracking