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stroustrup.com

https://stroustrup.com· First analyzed 01 May 2026· Updated 01 May 2026
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stroustrup.com
Desktop screenshot of stroustrup.com
Mobile screenshot of stroustrup.com
Mobile

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Hosting Provider

Columbia University

IP Address

128.59.16.27

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 New York, United States

ASN

AS14

Organization

Columbia University

Server

Apache

Nameservers

ns73.worldnic.com.ns74.worldnic.com.

Performance

100

Core Web Vitals

Weight

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

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Columbia University

Technology Stack

1 Technologies Detected

Web Servers

1
Apachev2.4.25

SEO Analysis

D45/100
12
9
2
Meta Tags7/15
Content9/12
Headings6/8
Technical5/21
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
S
stroustrup.comstroustrup.com

Bjarne Stroustrup's Homepage

This is the homepage of Bjarne Stroustrup, the designer and original implementor of C++

Title Length28 chars

Recommended: 50-60 chars (~174px / 580px)

Description Length87 chars

Recommended: 120-160 chars

Issues (2)

  • • Most images missing alt text (1/1) — critical for accessibility and SEO
  • • Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

11 issues found

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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.

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AI & LLM Readiness

F31/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
4/25

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:42%
Words:246
Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary54w
Descriptive Headings
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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.
D
56/100
8
Passed
5
Critical
0
Warnings
Images & Alt Text
5/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
11/20
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...
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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.
61/100
A+
3 mg
CO₂e / view
25.1 KB
Page Weight
95%
Cleaner Than
New Visitor
4 mg
vs
Returning (cached)
2 mg
Annual (10K/mo)
372 g
Emission Segments
Data Center
<0.001 g
Network
<0.001 g
Device
2 mg
Resource Breakdown
Images
23.6 KB
HTML
1.6 KB
Green Hosting Not Verified
Columbia University
3 recommendations
  • •Carbon footprint recommendation preview...
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B

Security Score

71%Good
Static / Informational

HTTPS

No WAF

37d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

10.03.2026

Valid Until

08.06.2026

Subject Alternative Names (1)

stroustrup.com

SHA-256 Fingerprint

82:5E:E9:89:BA:39:CD:9E:28:F1:8F:A4:41:62:F6:1D:B0:F0:0C:01...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
content-encoding
📦 Gzip(gzip)
content-length
1292
content-type
text/html
date
Fri, 01 May 2026 15:23:43 GMT
etag
"ed8-64ef38ac9c847-gzip"
Good Warning Issue

Email Infrastructure

Google Workspace

Score

45

SPF
DKIM
DMARC

MX Records (5)

alt3.aspmx.l.google.com
aspmx.l.google.com
alt2.aspmx.l.google.com
alt4.aspmx.l.google.com

+1 more

Domain Information

stroustrup.com

Domain Age
26y 10m

Created

29.06.1999

Expires

29.06.2031

Last Updated

19.03.2022

Registrar

Network Solutions, LLC

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
37/100
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.
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Times New Roman

WCAG AAA
78/100
Readability
/30
21/30

16px · LH --

Hierarchy
/20
19/20

2x ratio · ✓ H1→H6

WCAG
/25
24/25

9.4:1 min contrast

Performance
/25
14/25

1 font

Heading Font

Times New Roman

Serif32px

Body Font

Times New Roman

Serif16px

Contrast Ratio

9.4:1

WCAG AAA (≥7:1)

Reading Comfort

~41 CPL

Narrow lines
32px
h1
16px
p

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

❌ Very complex text: Flesch score 27/100. Consider shorter sentences and simpler words.

✅ 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: 1 font families keeps load times fast.

Buy on MyFontsFlesch 27

Color Palette

8 unique colors
2.77:1 Fail Light
#828293
Other· 4.3%
#dedce0
Other· 2.3%
#fffbfa
Primary· 78.00000000000001%
#b7bacb
Secondary· 3.6%
#9499af
Secondary· 3.5%
#a9a6bb
Secondary· 3.4%

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Website Identity

stroustrup.com

26 years old
Location detected: 🇺🇸 United Statesvia ip
Network Solutions, LLC📧 Google Workspace

Social Profiles

LinkedInGitHub

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Last analyzed: 01 May 2026 at 15:24

Historical Analysis & Change Tracking

stroustrup.com Technology Stack - Built With Apache | StackOptic | StackOptic