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seirdy.one

https://seirdy.one· First analyzed 14 May 2026· Updated 14 May 2026
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seirdy.one
Desktop screenshot of seirdy.one
Mobile screenshot of seirdy.one
Mobile

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Hosting Provider

DigitalOcean
digitalocean.com

IP Address

143.110.224.186

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Santa Clara, United States

ASN

AS14061

Organization

DigitalOcean, LLC

Nameservers

ns1.desec.io.ns2.desec.org.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
330 ms10%
Speed Index
429 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
8 KB
3 requests
0–49
50–89
90–100

Architecture Stack

JAMstack
⚡ SSG
Frontend
Framework
Hugov0.132.0
Infrastructure
Hosting
DigitalOcean

Progressive Web App

Web ManifestTheme Color

Technology Stack

1 Technologies Detected

CSS Frameworks

1
Tailwind CSS

SEO Analysis

A80/100
24
5
1
Meta Tags9/15
Content12/12
Headings8/8
Technical23/25
E-E-A-T3/7
Images1/7
Links5/5
URL5/5
Social3/5
Freshness4/4
Mobile4/4
Indexability3/3
S
seirdy.oneseirdy.one

Seirdy’s Home

My personal IndieWeb site. I write about and develop software to promote user autonomy. Topics include accessibility, security, privacy, and software freedom.

Title Length13 chars

Recommended: 50-60 chars (~81px / 580px)

Description Length158 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (2/3) — critical for accessibility and SEO

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

213 URLs

robots.txt

46 rules

Sitemap reference found

Local SEO

Local Search Readiness

5/100
Poor
2 13 2

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

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AI & LLM Readiness

D49/100
Bot Access
9/25
Machine Read.
15/25
Schema Data
7/25
Citation
18/25

AI Bot Access

9/14 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
noai metanoimageai meta

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
code blocksnavheader/footer
Text ratio:16%
Words:804
Token eff.:Optimal
Sections/1K:12.4
Depth:3/5

Structured Data

Microdata
Article×1.2microdataPerson×1.3microdataWebSitemicrodata
sameAs entity links

Citation Readiness

Opening Summary22w
Descriptive Headingsavg 4.3w
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (7)
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.
A+
91/100
16
Passed
0
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
15/15
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.

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.
80/100
A+
<0.001 g
CO₂e / view
8.3 KB
Page Weight
95%
Cleaner Than
New Visitor
1 mg
vs
Returning (cached)
<0.001 g
Annual (10K/mo)
96 g
Emission Segments
Data Center
<0.001 g
Network
<0.001 g
Device
<0.001 g
Resource Breakdown
Images
1.8 KB
HTML
6.5 KB
Green Hosting Verified
DigitalOcean
Provider Match
1 recommendation
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A+

Security Score

90%Excellent
Static / Informational

HTTPS

No WAF

65d

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+H3

Valid From

19.04.2026

Valid Until

18.07.2026

Subject Alternative Names (7)

collector.seirdy.onelibravatar.seirdy.onematrix.seirdy.onemta-sts.seirdy.oneseirdy.onestaging.seirdy.onewww.seirdy.one

SHA-256 Fingerprint

2F:1A:94:CC:D1:DA:60:A1:7F:27:63:1E:F5:55:6C:5D:14:55:2C:33...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cache-control
🟡 1 Hours(max-age=3600, no-transform)
content-encoding
⚡ Brotli(br)
content-length
6332
content-security-policy
default-src 'none';img-src 'self';style-src 'sha256-jPWMiGX4...
content-type
text/html; charset=utf-8
Good Warning Issue

Email Infrastructure

Migadu

Score

75

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

aspmx2.migadu.com
aspmx1.migadu.com

Domain Information

seirdy.one

Domain Age
5y 9m

Created

10.08.2020

Expires

10.08.2032

Last Updated

15.10.2025

Registrar

NameCheap, Inc.

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

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
68/100
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, shrink-to-fit=no
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

sans-serif

WCAG AAA
81/100
Readability
/30
24/30

16px · LH 1.50

Hierarchy
/20
19/20

2x ratio · ✓ H1→H6

WCAG
/25
24/25

9.4:1 min contrast

Performance
/25
14/25

0 fonts

Heading Font

sans-serif

Sans32px

Body Font

sans-serif

Sans16px

Contrast Ratio

9.4:1

WCAG AAA (≥7:1)

Reading Comfort

~37 CPL

Narrow lines
32px
h1
24px
h2
19px
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 AAA contrast: All text meets 7:1 ratio (min 9.4:1).

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

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

✅ Lean font stack: 0 font families keeps load times fast.

Flesch 56

Color Palette

7 unique colors
4.67:1 AA Light
#ffffff
Background· 89.90000000000002%
#737381
Other· 1.4%
#191919
Primary· 0%

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

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Website Identity

seirdy.one

seirdy@seirdy.one
5 years old
Location detected: 🇺🇸 United Statesvia ip
NameCheap, Inc.📧 Migaduen-us

Social Profiles

GitHub

Sponsored

Last analyzed: 14 May 2026 at 01:27

Historical Analysis & Change Tracking