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hsqldb.org

https://hsqldb.org· First analyzed 08 May 2026· Updated 08 May 2026
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hsqldb.org
Desktop screenshot of hsqldb.org
Mobile screenshot of hsqldb.org
Mobile

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Hosting Provider

Kattare Internet Services

IP Address

208.95.105.31

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Corvallis, United States

ASN

AS32915

Organization

Kattare Internet Services

Server

Apache

Nameservers

ns1.kattare.com.ns2.kattare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
472 ms10%
Speed Index
614 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
29 KB
13 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Kattare Internet Services

Technology Stack

2 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Apache

SEO Analysis

D43/100
10
13
2
Meta Tags5/15
Content11/12
Headings1/8
Technical5/21
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
H
hsqldb.orghsqldb.org

HSQLDB

hsqldb: Full-featured 100% Java RDBMS

Title Length6 chars

Recommended: 50-60 chars (~40px / 580px)

Description Length37 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

15 issues found

Upgrade to view details

Local SEO

Local Search Readiness

0/100
Poor
15 2

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

Sponsored

AI & LLM Readiness

F33/100
Bot Access
20/25
Machine Read.
10/25
Schema Data
0/25
Citation
3/25

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
Text ratio:45%
Words:854
Token eff.:Optimal
Sections/1K:3.5

Structured Data

No Schema

Citation Readiness

Opening Summary13w
Descriptive Headingsavg 3w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
AI readiness recommendation preview...
Upgrade to view recommendations

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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.
C
64/100
7
Passed
6
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
4/20
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
1/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 recommendations
  • •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.
63/100
A+
4 mg
CO₂e / view
28.7 KB
Page Weight
95%
Cleaner Than
New Visitor
4 mg
vs
Returning (cached)
2 mg
Annual (10K/mo)
432 g
Emission Segments
Data Center
<0.001 g
Network
<0.001 g
Device
2 mg
Resource Breakdown
Images
22.8 KB
CSS
869 B
HTML
5.1 KB
Green Hosting Not Verified
Kattare Internet Services
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

76%Good
Static / Informational

HTTPS

No WAF

148d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

19.03.2026

Valid Until

03.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.hsqldb.orghsqldb.org

SHA-256 Fingerprint

14:17:52:0F:2F:0E:2C:1E:F9:1E:0A:C3:40:AC:AB:A3:32:89:E1:8C...

Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
connection
Keep-Alive
content-encoding
📦 Gzip(gzip)
content-length
4881
content-type
text/html
date
Fri, 08 May 2026 13:37:14 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

20

SPF
DKIM
DMARC

MX Records (1)

mail-in.kattare.com

Domain Information

hsqldb.org

Domain Age
25y 1m

Created

04.04.2001

Expires

04.04.2030

Last Updated

02.04.2025

Registrar

Gandi SAS

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.
F
30/100
Not Mobile Friendly
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.
4 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

verdana

WCAG AAA
62/100
Readability
/30
16/30

13px · LH --

Hierarchy
/20
8/20
WCAG
/25
24/25

8.09:1 min contrast

Performance
/25
14/25

1 font

Heading Font

verdana

Sans

Body Font

verdana

Sans13px

Contrast Ratio

8.09:1

WCAG AAA (≥7:1)

Reading Comfort

~67 CPL

Optimal (45–75)
15px
h3
13px
h4
13px
p

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

✅ Optimal line length: ~67 chars/line (ideal 45–75 CPL).

⚠️ Hard to read: Flesch score 43/100. Simplify sentences for wider reach.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 8.1:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

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

Buy on MyFontsFlesch 43

Color Palette

8 unique colors
4.61:1 AA Light
#ffffff
Background· 72.2%
#79737b
Other· 3.3%
#ecf3f5
Primary· 6.699999999999999%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

Social Media

1
Twitter/X WidgetsFree

Social widgets and sharing tools

2

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

3 Resources

2
Scripts
1
Styles
0
Async
0
Defer

Top Script Sources

platform.twitter.com(2)

Website Identity

hsqldb.org

25 years old
Location detected: 🇺🇸 United Statesvia ip
Gandi SAS

Sponsored

Last analyzed: 08 May 2026 at 13:37

Historical Analysis & Change Tracking