vt100.net

https://vt100.net· First analyzed 16 May 2026· Updated 16 May 2026

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vt100.net

Mobile

Sponsored

Hosting Provider

pair Networks

IP Address

216.92.111.6

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Pittsburgh, United States

ASN

AS7859

Organization

pair Networks

Server

Apache

Nameservers

dns.pair.com.ns0.ns0.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

775 ms10%

Speed Index

1.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

168 KB

16 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

pair Networks

Technology Stack

1 Technologies Detected

Web Servers

Apache

SEO Analysis

D57/100

Meta Tags7/15

Content11/12

Headings8/8

Technical13/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

vt100.netvt100.net

Video Display Terminal Information

No description available for this page.

Title Length34 chars

Recommended: 50-60 chars (~201px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description — important for click-through rates in SERPs
• Most images missing alt text (11/11) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

18,195 URLs

robots.txt

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

D42/100

Bot Access

20/25

Machine Read.

14/25

Schema Data

0/25

Citation

8/25

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 blocks

Text ratio:46%

Words:599

Token eff.:Optimal

Sections/1K:11.7

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary43w

Descriptive Headingsavg 2w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

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.

76/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

16/20

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.

1 recommendation

•Accessibility recommendation preview...

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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.

76/100

A+

17 mg

CO₂e / view

167.6 KB

Page Weight

95%

Cleaner Than

New Visitor

19 mg

Returning (cached)

10 mg

Annual (10K/mo)

2.0 kg

Emission Segments

Data Center

<0.001 g

Network

5 mg

Device

11 mg

Resource Breakdown

Images

152.0 KB

CSS

12.4 KB

HTML

3.2 KB

Green Hosting Verified

pair Networks

Provider Match

2 recommendations

•Carbon footprint recommendation preview...

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Security Score

76%Good

Static / Informational

HTTPS

No WAF

268d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

08.01.2026

Valid Until

08.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

vt100.netwww.vt100.net

SHA-256 Fingerprint

54:C1:87:39:36:18:B5:A3:1F:0E:CD:C6:5C:09:FA:F7:27:3F:D8:B0...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🟢 1 Month(max-age=2592000)

content-encoding

📦 Gzip(gzip)

content-length

2953

content-type

application/xhtml+xml

date

Sat, 16 May 2026 02:08:39 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mail1.g16.pair.com

Domain Information

vt100.net

Domain Age

27 years

Created

13.05.1999

Expires

13.05.2031

Last Updated

13.04.2026

Registrar

pair Networks, Inc. d/b/a pair Domains

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.

52/100

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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Mayterm + sans-serif

WCAG AAA

78/100

Readability

/30

25/30

16px · LH 1.50

Hierarchy

/20

17/20

4x ratio · ✓ H1→H6

WCAG

/25

23/25

8.59:1 min contrast

Performance

/25

13/25

1 font · 1 req

Heading Font

Mayterm

Sans64px

Body Font

sans-serif

Sans16px

Contrast Ratio

8.59:1

WCAG AAA (≥7:1)

Reading Comfort

~39 CPL

Narrow lines

64px

32px

19px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

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

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 8.6:1).

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

✅ Strong hierarchy: Headlines are 4.0x larger than body text.

Buy on MyFontsFlesch 43

Color Palette

6 unique colors

3.07:1 AA Large Light

#e0e0e0

Other· 67.5%

#7c7d8d

Other· 3%

#ce4d32

Primary· 3.9%

#c18177

Secondary· 0.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

3 Resources

Scripts

Styles

Async

Defer

Top Script Sources

Website Identity

vt100.net

27 years old

Location detected: 🇺🇸 United Statesvia ip

pair Networks, Inc. d/b/a pair Domainsen

Social Profiles

Mastodon

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Last analyzed: 16 May 2026 at 02:08

Historical Analysis & Change Tracking