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regexper.com

https://regexper.com· First analyzed 16 May 2026· Updated 16 May 2026
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regexper.com
Desktop screenshot of regexper.com
Mobile screenshot of regexper.com
Mobile

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Hosting Provider

Fastly, Inc.

IP Address

151.101.1.195

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Montreal, Canada

ASN

AS54113

Organization

Fastly, Inc.

CDN

Fastly

Nameservers

ns-9-a.gandi.net.ns-67-b.gandi.net.ns-13-c.gandi.net.

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%
145 KB
5 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Fastly, Inc.
CDN
Fastly

Technology Stack

1 Technologies Detected

Fonts

1
Google Fonts

SEO Analysis

D42/100
13
10
1
Meta Tags5/15
Content2/12
Headings6/8
Technical11/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile1/4
Indexability3/3
R
regexper.comregexper.com

Regexper

Regular expression visualizer using railroad diagrams

Title Length8 chars

Recommended: 50-60 chars (~49px / 580px)

Description Length53 chars

Recommended: 120-160 chars

Issues (1)

  • • Very thin content (27 words). Search engines need substantial content for ranking.

11 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

1 rules

Allows all crawlers

Local SEO

Local Search Readiness

2/100
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

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
navheader/footer
Text ratio:2%
Words:26
Token eff.:Too Short
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary
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 (9)
AI readiness recommendation preview...
Upgrade to view recommendations

Sponsored

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.
B
77/100
10
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
17/20
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.
2 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.
77/100
A+
15 mg
CO₂e / view
145.3 KB
Page Weight
95%
Cleaner Than
New Visitor
17 mg
vs
Returning (cached)
8 mg
Annual (10K/mo)
1.8 kg
Emission Segments
Data Center
<0.001 g
Network
4 mg
Device
10 mg
Resource Breakdown
JavaScript
140.4 KB
CSS
2.2 KB
Fonts
500 B
HTML
2.2 KB
Green Hosting Verified
Fastly, Inc.
Provider Match
2 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

36%Critical
Interactive

HTTPS

No WAF

40d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

28.03.2026

Valid Until

26.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

www.deksomboon.fiwww.roobotics.com.ausso.mediamarket.jpwww.redpoint-app.comtiander.wolvez.com.brwww.themodernistlife.combesteachers.ynet.co.ilchat.manh.moe+12 more

SHA-256 Fingerprint

CD:51:2E:79:A9:5F:0A:AE:DC:96:F7:91:96:86:59:7C:88:29:2D:83...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
alt-svc
h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=864...
cache-control
🟡 1 Hours(max-age=3600)
content-encoding
⚡ Brotli(br)
content-length
1984
content-type
text/html; charset=utf-8
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

mail.regexper.com

Domain Information

regexper.com

Domain Age
13y 4m

Created

02.01.2013

Expires

02.01.2027

Last Updated

01.12.2025

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.
D
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...
Upgrade to view recommendations

Typography & Readability

Bangers + sans-serif

WCAG AA
75/100
Readability
/30
24/30

16px · LH 1.50

Hierarchy
/20
17/20

3x ratio · ✓ H1→H6

WCAG
/25
21/25

5.72:1 min contrast

Performance
/25
13/25

1 font · 1 req

Heading Font

Bangers

Display48px

Body Font

sans-serif

Sans16px

Contrast Ratio

5.72:1

WCAG AA (≥4.5:1)

Reading Comfort

Display + Body Pairing

left aligned
48px
h1

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

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

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.7:1).

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

✅ Strong hierarchy: Headlines are 3.0x larger than body text.

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

GGoogle Fonts

Color Palette

7 unique colors
Dark
#6c665a
Secondary· 76.69999999999999%
#97b145
Secondary· 9.600000000000001%
#cacbb9
Secondary· 5.4%
#b3d252
Primary· 5.300000000000001%
#403f32
Secondary· 1.3%
#7b7f59
Secondary· 1.2%
#b2c76c
Secondary· 0.6%

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

main-a4262a4d535cb7870494.js(1)

Website Identity

regexper.com

jeff.avallone@gmail.com
13 years old
Location detected: 🇨🇦 Canadavia ip
Gandi SAS

Sponsored

Last analyzed: 16 May 2026 at 14:34

Historical Analysis & Change Tracking