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react-hook-form.com

https://react-hook-form.com· First analyzed 12 May 2026· Updated 12 May 2026
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react-hook-form.com
Desktop screenshot of react-hook-form.com
Mobile screenshot of react-hook-form.com
Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

76.223.126.88

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Seattle, United States

ASN

AS16509

Organization

AWS Global Accelerator (GLOBAL)

Server

Vercel

Nameservers

ns2.vercel-dns.com.ns1.vercel-dns.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
476 ms10%
Speed Index
619 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
358 KB
46 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Infrastructure
Platform
Vercel

Technology Stack

3 Technologies Detected

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Platforms

1
Vercel

SEO Analysis

C65/100
18
8
0
Meta Tags8/15
Content11/12
Headings6/8
Technical16/25
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile1/4
Indexability3/3
R
react-hook-form.comreact-hook-form.com

React Hook Form - performant, flexible and extensible form library

React hook for form validation without the hassle

Title Length66 chars

Recommended: 50-60 chars (~400px / 580px)

Description Length49 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    3 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    3/100
    Poor
    1 14 2

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

    Sponsored

    AI & LLM Readiness

    D44/100
    Bot Access
    20/25
    Machine Read.
    12/25
    Schema Data
    0/25
    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.txt
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    code blocksnavheader/footer
    Text ratio:10%
    Words:931
    Token eff.:Optimal
    Sections/1K:20.4
    Depth:3/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary11w
    Descriptive Headingsavg 1.8w
    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.
    B
    76/100
    13
    Passed
    3
    Critical
    1
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    15/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    5/15
    Verifies form fields have labels, error messages are clear, and inputs are properly associated.
    Color & Contrast
    14/15
    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
    9/15
    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.
    74/100
    A+
    36 mg
    CO₂e / view
    357.8 KB
    Page Weight
    90%
    Cleaner Than
    New Visitor
    41 mg
    vs
    Returning (cached)
    21 mg
    Annual (10K/mo)
    4.3 kg
    Emission Segments
    Data Center
    2 mg
    Network
    11 mg
    Device
    24 mg
    Resource Breakdown
    JavaScript
    272.5 KB
    Images
    4.5 KB
    CSS
    33.8 KB
    HTML
    11.1 KB
    Other
    35.9 KB
    Green Hosting Verified
    Amazon Web Services (AWS)
    Provider Match
    2 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    36%Critical
    Interactive

    HTTPS

    No WAF

    46d

    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

    29.03.2026

    Valid Until

    27.06.2026

    Subject Alternative Names (2)

    *.react-hook-form.comreact-hook-form.com

    SHA-256 Fingerprint

    D2:22:C6:5E:1B:F4:8D:F5:3C:8A:1E:53:1B:5B:6E:B8:04:97:A3:FA...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    access-control-allow-origin
    *
    age
    13975
    cache-control
    🟡 0s(public, max-age=0, must-revalidate)
    content-disposition
    inline
    content-encoding
    ⚡ Brotli(br)
    content-type
    text/html; charset=utf-8
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    0

    SPF
    DKIM
    DMARC

    Domain Information

    react-hook-form.com

    Domain Age
    6y 11m

    Created

    27.05.2019

    Expires

    27.05.2027

    Last Updated

    29.05.2025

    Registrar

    GoDaddy.com, LLC

    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.
    D
    58/100
    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
    minimum-scale=1, initial-scale=1, width=device-width
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Segoe UI

    WCAG Partial
    73/100
    Readability
    /30
    18/30

    15px · LH 1.74

    Hierarchy
    /20
    16/20

    3.67x ratio

    WCAG
    /25
    17/25

    1:1 min contrast

    Performance
    /25
    22/25

    System fonts

    Heading Font

    Segoe UI

    Sans55px

    Body Font

    Segoe UI

    Sans15px

    Contrast Ratio

    1:1

    22 issues

    Reading Comfort

    ~39 CPL

    Narrow lines
    55px
    h1
    24px
    h2
    22px
    h3
    16px
    h4
    15px
    p

    ⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

    ⚠️ Partial contrast: 22 elements below WCAG AA threshold (min 1.0:1).

    ⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ Strong hierarchy: Headlines are 3.7x larger than body text.

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

    Color Palette

    5 unique colors
    Light
    #bdb8bd
    Other· 3.9%
    #081329
    Accent· 78.30000000000001%
    #020206
    Primary· 11.5%
    #52364f
    Secondary· 3.2%

    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

    24 Resources

    20
    Scripts
    4
    Styles
    0
    Async
    17
    Defer

    Top Script Sources

    local(19)cdn.jsdelivr.net(1)

    Website Identity

    react-hook-form.com

    6 years old
    Location detected: 🇺🇸 United Statesvia ip
    GoDaddy.com, LLCen

    Sponsored

    Last analyzed: 12 May 2026 at 11:55

    Historical Analysis & Change Tracking