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vapoursynth.com

https://vapoursynth.com· First analyzed 15 Jun 2026· Updated 15 Jun 2026
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vapoursynth.com
Desktop screenshot of vapoursynth.com
Mobile screenshot of vapoursynth.com
Mobile

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Hosting Provider

Namecheap
namecheap.com

IP Address

162.0.217.121

Site Location

🇳🇱 Netherlandsvia ip

Server Location

🇳🇱 Amsterdam, The Netherlands

ASN

AS22612

Organization

Namecheap, Inc.

Server

LiteSpeed

Nameservers

dns1.namecheaphosting.com.dns2.namecheaphosting.com.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
983 ms10%
Speed Index
1.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
92 KB
6 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv7.0
cms
Twenty Elevenv5.1
by the WordPress team
View Theme

Technology Stack

3 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Web Servers

1
LiteSpeed

Plugins

1
Page Links To

SEO Analysis

C67/100
19
9
1
Meta Tags9/15
Content12/12
Headings6/8
Technical15/25
E-E-A-T3/7
Images5/7
Links4/5
URL5/5
Social0/5
Freshness2/4
Mobile3/4
Indexability3/3
V
vapoursynth.comvapoursynth.com

VapourSynth | Video processing and unsolicited code criticism

No description available for this page.

Title Length61 chars

Recommended: 50-60 chars (~361px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing meta description — important for click-through rates in SERPs

10 issues found

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Crawlability

Sitemap

Type: index

4 URLs

4 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

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.

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AI & LLM Readiness

D48/100
Bot Access
20/25
Machine Read.
15/25
Schema Data
0/25
Citation
13/25

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:21%
Words:2,303
Token eff.:Optimal
Sections/1K:3.5
Depth:3/5

Structured Data

No Schema

Citation Readiness

Opening Summary79w
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 (6)
AI readiness recommendation preview...
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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
86/100
13
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
18/20
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
3/15
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.
68/100
A+
11 mg
CO₂e / view
92.4 KB
Page Weight
95%
Cleaner Than
New Visitor
13 mg
vs
Returning (cached)
7 mg
Annual (10K/mo)
1.4 kg
Emission Segments
Data Center
3 mg
Network
3 mg
Device
6 mg
Resource Breakdown
JavaScript
13.0 KB
Images
50.5 KB
CSS
13.9 KB
HTML
14.9 KB
Green Hosting Not Verified
Namecheap
2 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

0d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-384 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

15.06.2025

Valid Until

15.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

vapoursynth.comwww.vapoursynth.com

SHA-256 Fingerprint

17:03:6A:87:29:90:5D:73:9A:A1:B2:46:E1:1E:6C:0F:34:CF:57:E2...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding
⚡ Brotli(br)
content-length
14949
content-type
text/html; charset=UTF-8
date
Mon, 15 Jun 2026 16:50:22 GMT
etag
"2250-1781405633;br"
link
<https://www.vapoursynth.com/wp-json/>; rel="https://api.w.o...
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

90

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (3)

mx1-hosting.jellyfish.systems
mx2-hosting.jellyfish.systems
mx3-hosting.jellyfish.systems

Domain Information

vapoursynth.com

Domain Age
13y 9m

Created

27.08.2012

Expires

27.08.2026

Last Updated

15.06.2025

Registrar

NameCheap, Inc.

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.
C
67/100
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=1.0
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Helvetica Neue

WCAG Partial
72/100
Readability
/30
19/30

15px · LH 1.63

Hierarchy
/20
15/20

1.73x ratio

WCAG
/25
16/25

1.16:1 min contrast

Performance
/25
22/25

System fonts

Heading Font

Helvetica Neue

Sans26px

Body Font

Helvetica Neue

Sans15px

Contrast Ratio

1.16:1

13 issues

Reading Comfort

~44 CPL

Narrow lines
26px
h1
15px
h2
15px
h3
15px
p

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

⚠️ Partial contrast: 13 elements below WCAG AA threshold (min 1.2:1).

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

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

Flesch 63

Color Palette

9 unique colors
Light
#ffffff
Background· 36.4%
#171e0e
Primary· 11.8%
#bf1f1f
Accent· 7.6%
#eecfbb
Accent· 5.7%
#b2877a
Secondary· 4%
#d0c7c2
Secondary· 3.1%
#75482c
Secondary· 3%
#8c221a
Accent· 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

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Scripts & Styles

3 Resources

1
Scripts
2
Styles
0
Async
0
Defer

Top Script Sources

vapoursynth.com(1)

Website Identity

vapoursynth.com

13 years old
Location detected: 🇳🇱 Netherlandsvia ip
NameCheap, Inc.en-US

Social Profiles

GitHub

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Last analyzed: 15 Jun 2026 at 16:50

Historical Analysis & Change Tracking