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certbolt.com

https://certbolt.com· First analyzed 21 May 2026· Updated 21 May 2026
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certbolt.com
Desktop screenshot of certbolt.com
Mobile screenshot of certbolt.com
Mobile

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Hosting Provider

Private Layer INC

IP Address

46.19.141.36

Site Location

🇨🇭 Switzerlandvia ip

Server Location

🇨🇭 Zurich, Switzerland

ASN

AS51852

Organization

Private Layer INC

Server

Nginx

Nameservers

ns08.domaincontrol.com.ns07.domaincontrol.com.

Performance

91

Core Web Vitals

Weight

First Contentful Paint
1.4 s10%
Speed Index
1.9 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
964 KB
67 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Private Layer INC

Technology Stack

5 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQueryv3.4.1

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Nginx

SEO Analysis

C66/100
21
7
1
Meta Tags8/15
Content12/12
Headings8/8
Technical16/25
E-E-A-T3/7
Images5/7
Links4/5
URL5/5
Social0/5
Freshness0/4
Mobile2/4
Indexability3/3
C
certbolt.comcertbolt.com

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Title truncated. Description truncated.
Title Length71 chars

Recommended: 50-60 chars (~436px / 580px)

Description Length188 chars

Recommended: 120-160 chars

Issues (1)

  • • Title is too long (71 chars, ~436px). Will be truncated in search results.

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

2,474 URLs

robots.txt

18 rules

Local SEO

Local Search Readiness

6/100
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

D43/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
0/25
Citation
10/25

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:8%
Words:981
Token eff.:Optimal
Sections/1K:36.7
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary20w
Descriptive Headingsavg 3.8w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
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
88/100
14
Passed
1
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
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
9/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •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.
45/100
B
119 mg
CO₂e / view
963.8 KB
Page Weight
70%
Cleaner Than
New Visitor
136 mg
vs
Returning (cached)
68 mg
Annual (10K/mo)
14.3 kg
Emission Segments
Data Center
27 mg
Network
29 mg
Device
64 mg
Resource Breakdown
JavaScript
331.9 KB
Images
246.6 KB
CSS
266.1 KB
Fonts
108.4 KB
HTML
10.8 KB
Green Hosting Not Verified
Private Layer INC
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

51%Poor
Interactive

HTTPS

No WAF

1d

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/1.1

Valid From

22.02.2026

Valid Until

23.05.2026

Subject Alternative Names (2)

certbolt.comwww.certbolt.com

SHA-256 Fingerprint

EE:0C:C7:04:70:77:DC:32:29:BA:84:55:45:A5:52:D8:E7:4F:1F:ED...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-store, no-cache, must-revalidate)
connection
keep-alive
content-encoding
📦 Gzip(gzip)
content-length
10783
content-security-policy
frame-ancestors 'none';
content-type
text/html; charset=UTF-8
Good Warning Issue

Email Infrastructure

Google Workspace

Score

70

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

alt1.aspmx.l.google.com
alt2.aspmx.l.google.com
aspmx.l.google.com
alt4.aspmx.l.google.com

+1 more

Domain Information

certbolt.com

Domain Age
8y 7m

Created

03.10.2017

Expires

03.10.2034

Last Updated

12.12.2024

Registrar

GoDaddy Online Services Cayman Islands Ltd.

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
61/100
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
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

PTSans + Lato

WCAG AA
76/100
Readability
/30
20/30

21px · LH 1.62

Hierarchy
/20
19/20

2.29x ratio · ✓ H1→H6

WCAG
/25
19/25

6.78:1 min contrast

Performance
/25
18/25

2 fonts · 5 req

Heading Font

PTSans

Sans48px

Body Font

Lato

Sans21px

Contrast Ratio

6.78:1

WCAG AA (≥4.5:1)

Reading Comfort

Dual Sans-Serif

left aligned
48px
h1
28px
h2
17px
h3
21px
p

✅ Excellent readability: 21px body text is ideal for all devices.

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.8:1).

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

✅ Strong hierarchy: Headlines are 2.3x larger than body text.

✅ Lean font stack: 2 font families keeps load times fast.

Buy on MyFontsFlesch 0

Color Palette

4 unique colors
Light
#c4c6c6
Other· 4.5%
#fbfcff
Primary· 77.4%
#9a1f6f
Accent· 14%
#955e73
Secondary· 4.3%

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

9 Resources

7
Scripts
2
Styles
3
Async
0
Defer

Top Script Sources

local(3)googletagmanager.com(2)google-analytics.com(1)ajax.googleapis.com(1)

Website Identity

certbolt.com

8 years old
Location detected: 🇨🇭 Switzerlandvia ip
GoDaddy Online Services Cayman Islands Ltd.📧 Google Workspaceen

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Last analyzed: 21 May 2026 at 18:18

Historical Analysis & Change Tracking