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questdb.io

https://questdb.io· First analyzed 01 Jun 2026· Updated 01 Jun 2026
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questdb.io
Desktop screenshot of questdb.io
Mobile screenshot of questdb.io
Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

99.83.231.61

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Seattle, United States

ASN

AS16509

Organization

AWS Global Accelerator (GLOBAL)

Server

Netlify

CDN

Cloudflare

WAF

Cloudflare

Nameservers

kai.ns.cloudflare.com.tiffany.ns.cloudflare.com.

Performance

96

Core Web Vitals

Weight

First Contentful Paint
1.1 s10%
Speed Index
1.4 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.2 MB
81 requests

Image Optimization

Lazy LoadWebPResponsiveNetlify Image CDN
0–49
50–89
90–100

Architecture Stack

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

Technology Stack

4 Technologies Detected

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Analytics

1
PostHog

Platforms

1
Netlify

SEO Analysis

A80/100
24
6
0
Meta Tags13/15
Content10/12
Headings8/8
Technical23/25
E-E-A-T2/7
Images5/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile1/4
Indexability3/3
Q
questdb.ioquestdb.io

QuestDB | Low-latency time-series database on open formats

QuestDB is the open-source time-series database for demanding workloads, from trading floors to mission control. It delivers ultra-low latency, high ingestio...

Description truncated.
Title Length58 chars

Recommended: 50-60 chars (~362px / 580px)

Description Length301 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    2 URLs

    2 sub-sitemaps

    robots.txt

    8 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    15/100
    Poor
    4 13

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

    Sponsored

    AI & LLM Readiness

    C62/100
    Bot Access
    20/25
    Machine Read.
    20/25
    Schema Data
    6/25
    Citation
    16/25

    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
    blockquotescode blocksnav
    Text ratio:2%
    Words:2,132
    Token eff.:Optimal
    Sections/1K:4.2
    Depth:3/5

    Structured Data

    4 JSON-LD
    Organization×1.1WebSite
    sameAs entity links

    Citation Readiness

    Opening Summary70w
    Descriptive Headingsavg 6.2w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (6)
    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
    85/100
    13
    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
    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.
    68/100
    B
    122 mg
    CO₂e / view
    1.2 MB
    Page Weight
    70%
    Cleaner Than
    New Visitor
    140 mg
    vs
    Returning (cached)
    70 mg
    Annual (10K/mo)
    14.7 kg
    Emission Segments
    Data Center
    6 mg
    Network
    36 mg
    Device
    80 mg
    Resource Breakdown
    JavaScript
    404.4 KB
    Images
    257.3 KB
    CSS
    411.6 KB
    HTML
    121.8 KB
    Other
    15.2 KB
    Green Hosting Verified
    Amazon Web Services (AWS)
    Provider Match
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    76%Good
    Interactive

    HTTPS

    No WAF

    41d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-384

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    13.04.2026

    Valid Until

    12.07.2026

    Subject Alternative Names (2)

    questdb.comwww.questdb.com

    SHA-256 Fingerprint

    60:A0:D7:42:84:74:87:B2:AC:4A:59:9E:8B:64:70:F8:B6:37:4F:39...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    age
    4012
    cache-control
    🟡 0s(public,max-age=0,must-revalidate)
    cache-status
    "Netlify Edge"; hit
    content-encoding
    ⚡ Brotli(br)
    content-length
    124392
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    70

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (5)

    aspmx.l.google.com
    alt2.aspmx.l.google.com
    alt3.aspmx.l.google.com
    alt1.aspmx.l.google.com

    +1 more

    Domain Information

    questdb.io

    Domain Age
    10y 1m

    Created

    12.04.2016

    Expires

    12.04.2027

    Last Updated

    25.02.2026

    Registrar

    Gandi SAS

    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
    73/100
    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

    Typography & Readability

    PP Formula + GT Standard Mono

    WCAG Partial
    61/100
    Readability
    /30
    18/30

    14px · LH 1.61

    Hierarchy
    /20
    20/20

    4.29x ratio · ✓ H1→H6

    WCAG
    /25
    13/25

    1:1 min contrast

    Performance
    /25
    10/25

    4 fonts · 7 req

    Heading Font

    PP Formula

    Sans60px

    Body Font

    GT Standard Mono

    Mono14px

    Contrast Ratio

    1:1

    30 issues

    Reading Comfort

    ~35 CPL

    Narrow lines
    60px
    h1
    52px
    h2
    32px
    h3
    14px
    p

    ⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

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

    ⚠️ Partial contrast: 30 elements below WCAG AA threshold (min 1.0:1).

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

    ✅ Strong hierarchy: Headlines are 4.3x larger than body text.

    ✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

    Buy on MyFontsFluid Type (rem)Flesch 41

    Color Palette

    6 unique colors
    2.75:1 Fail Light
    #f3f3f4
    Background· 3.2%
    #979297
    Other· 2.5%
    #22222c
    Primary· 81.69999999999997%
    #9f103c
    Accent· 7.1000000000000005%
    #383946
    Secondary· 3%
    #7c5566
    Secondary· 2.5%

    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

    26 Resources

    20
    Scripts
    6
    Styles
    18
    Async
    0
    Defer

    Top Script Sources

    local(18)gstatic.com(1)google.com(1)

    Website Identity

    QuestDB

    QuestDB

    Organization

    Open-source time-series database

    questdb.com
    10 years old
    Location detected: 🇺🇸 United Statesvia ip
    Gandi SAS📧 Google WorkspaceenEst. 2019

    Sponsored

    Last analyzed: 01 Jun 2026 at 18:34

    Historical Analysis & Change Tracking