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knock.app

https://knock.app· First analyzed 10 Apr 2026· Updated 10 Apr 2026
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knock.app
Desktop screenshot of knock.app
Mobile screenshot of knock.app
Mobile

Sponsored

Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.18.9.234

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

maxim.ns.cloudflare.com.diana.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
501 ms10%
Speed Index
651 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
4.1 MB
123 requests

Image Optimization

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

Architecture Stack

Hybrid
⚡ SSG
Frontend
Framework
Next.js
Styling
Tailwind CSS
Infrastructure
Platform
Vercel
CDN
Cloudflare

Technology Stack

10 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Segment

Advertising

2
Twitter AdsLinkedIn Ads

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Customer Support

1
Intercom

CDN

1
Cloudflare

SEO Analysis

A84/100
25
4
0
Meta Tags13/15
Content10/12
Headings8/8
Technical24/25
E-E-A-T2/7
Images6/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
K
knock.appknock.app

Knock | Customer engagement infrastructure

Knock is customer engagement infrastructure for your product, marketing, and transactional messaging. Activate your data, ship cross-channel messaging, and a...

Description truncated.
Title Length42 chars

Recommended: 50-60 chars (~261px / 580px)

Description Length174 chars

Recommended: 120-160 chars

Issues (0)

    4 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    1 URLs

    1 sub-sitemaps

    robots.txt

    4 rules

    Sitemap reference found

    Allows all crawlers

    Sponsored

    AI & LLM Readiness

    D53/100
    Bot Access
    20/25
    Machine Read.
    15/25
    Schema Data
    6/25
    Citation
    12/25

    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.txtinvalid
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    code blocksnav
    Text ratio:2%
    Words:1,425
    Token eff.:Optimal
    Sections/1K:2.1
    Depth:2/5

    Structured Data

    3 JSON-LD
    Organization×1.1WebSite
    sameAs entity links

    Citation Readiness

    Opening Summary182w
    Descriptive Headingsavg 6.7w
    Canonical URL
    Open Graph3/3
    Twitter Card1/3
    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
    82/100
    12
    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
    9/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    6/15
    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.
    37/100
    F
    427 mg
    CO₂e / view
    4.1 MB
    Page Weight
    15%
    Cleaner Than
    New Visitor
    488 mg
    vs
    Returning (cached)
    244 mg
    Annual (10K/mo)
    51.3 kg
    Emission Segments
    Data Center
    21 mg
    Network
    126 mg
    Device
    281 mg
    Resource Breakdown
    JavaScript
    488.8 KB
    Images
    3.3 MB
    CSS
    34.2 KB
    Fonts
    248.6 KB
    HTML
    69.5 KB
    Other
    964 B
    Green Hosting Verified
    Cloudflare
    GWF Verified
    7 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A

    Security Score

    86%Very Good
    Static / Informational

    HTTPS

    WAF

    85d

    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

    Valid From

    05.04.2026

    Valid Until

    04.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    knock.appshortlinks.knock.app

    SHA-256 Fingerprint

    DD:01:0B:6A:5A:2F:66:79:B0:55:A4:DD:EC:4C:9E:83:02:9D:BF:DD...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    age
    1
    cache-control
    🟡 0s(public, max-age=0, must-revalidate)
    cf-cache-status
    DYNAMIC
    cf-ray🇩🇪 Frankfurt
    9ea1f6519f0d9923-FRA
    content-encoding
    📦 Gzip(gzip)
    content-security-policy
    default-src 'self'; script-src 'self' 'unsafe-inline' '...
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    90

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (5)

    aspmx.l.google.com
    alt4.aspmx.l.google.com
    alt1.aspmx.l.google.com
    alt2.aspmx.l.google.com

    +1 more

    Domain Information

    knock.app

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    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.
    B
    71/100
    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

    Typography & Readability

    ppNeueMontreal + Inter

    WCAG Partial
    70/100
    Readability
    /30
    24/30

    16px · LH 1.50

    Hierarchy
    /20
    15/20

    2.5x ratio

    WCAG
    /25
    15/25

    1.01:1 min contrast

    Performance
    /25
    16/25

    2 fonts · 7 req

    Heading Font

    ppNeueMontreal

    Sans40px

    Body Font

    Inter

    Sans16px

    Contrast Ratio

    1.01:1

    11 issues

    Reading Comfort

    ~36 CPL

    Narrow lines
    40px
    h1
    48px
    h2
    20px
    h3
    13px
    h4
    16px
    p
    Minor Second
    Scale

    ✅ 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.

    ⚠️ Partial contrast: 11 elements below WCAG AA threshold (min 1.0:1).

    ⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ Strong hierarchy: Headlines are 2.5x larger than body text.

    Buy on MyFontsFluid TypeFlesch 41

    Color Palette

    6 unique colors
    2.56:1 Fail Light
    #ffffff
    Background· 90%
    #a1a2a3
    Other· 2.2%
    #000000
    Primary· 0%
    #654d4a
    Secondary· 1.9%

    Business & Marketing Stack

    7 Tools Detected

    Enterprise

    Customer Support

    1
    IntercomMid-Market

    Live chat and helpdesk tools

    Behavior Analytics

    3
    Google Tag ManagerFree
    Google AnalyticsFree
    SegmentEnterprise

    User behavior and product analytics

    Lead Generation

    1
    ClearbitEnterprise

    Popups, forms, and lead capture tools

    Advertising

    2
    Twitter/X AdsMid-Market
    LinkedIn AdsEnterprise

    Ad platforms and retargeting pixels

    4

    Categories

    7

    Total Tools

    3

    Enterprise

    2

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    24 Resources

    20
    Scripts
    4
    Styles
    17
    Async
    3
    Defer

    Top Script Sources

    cdn.segment.com(5)googletagmanager.com(3)local(3)static.ads-twitter.com(2)snap.licdn.com(2)

    Website Identity

    knock.app

    Location detected: 🇨🇦 Canadavia ip
    📧 Google Workspace

    Sponsored

    Last analyzed: 10 Apr 2026 at 13:05

    AI-Powered Analysis

    Technical Deep Dive

    Technology Analysis for knock.app

    StackOptic has analyzed this website's technology stack. View the detailed breakdown in the sections above.

    Analysis by StackOptic AIApr 10, 2026

    AI-Powered Insights

    Historical Analysis & Change Tracking