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appsignal.com

https://appsignal.com· First analyzed 09 May 2026· Updated 09 May 2026
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appsignal.com
Desktop screenshot of appsignal.com
Mobile screenshot of appsignal.com
Mobile

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Hosting Provider

Worldstream

IP Address

185.191.3.124

Site Location

🇳🇱 Netherlandsvia ip

Server Location

🇳🇱 Naaldwijk, Netherlands

ASN

AS49981

Organization

Worldstream

Server

Vercel

Nameservers

ns-919.awsdns-50.net.ns-121.awsdns-15.com.ns-1327.awsdns-37.org.ns-1786.awsdns-31.co.uk.

Performance

86

Core Web Vitals

Weight

First Contentful Paint
1.7 s10%
Speed Index
2.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.7 MB
81 requests

Image Optimization

Lazy LoadResponsiveVercel Image Optimization
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Styling
Tailwind CSS
CMS
HubSpot CMS
Infrastructure
Platform
Vercel
CDN
Vercel Image

Technology Stack

6 Technologies Detected

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Analytics

1
PostHog

Marketing

1
HubSpot

Platforms

1
Vercel

SEO Analysis

B75/100
24
4
1
Meta Tags8/15
Content8/12
Headings6/8
Technical23/25
E-E-A-T2/7
Images6/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
A
appsignal.comappsignal.com

Application Monitoring for Ruby on Rails, Elixir, Node.js & Python ...

AppSignal APM offers error tracking, performance monitoring, dashboards, host metrics, and alerts. Built for Ruby, Ruby on Rails, Elixir, Node.js, and JavaSc...

Title truncated. Description truncated.
Title Length78 chars

Recommended: 50-60 chars (~451px / 580px)

Description Length162 chars

Recommended: 120-160 chars

Issues (1)

  • • Title is too long (78 chars, ~451px). Will be truncated in search results.

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

597 URLs

robots.txt

37 rules

Sitemap reference found

Local SEO

Local Search Readiness

22/100
Needs Work
6 11

Sponsored

AI & LLM Readiness

D53/100
Bot Access
20/25
Machine Read.
16/25
Schema Data
3/25
Citation
14/25

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.txtvalid
llms-full.txt
Semantic HTML
Heading Hierarchy
nav
Text ratio:2%
Words:1,429
Token eff.:Optimal
Sections/1K:5.6
Depth:1/5

Structured Data

2 JSON-LD
Organization×1.1
sameAs entity links

Citation Readiness

Opening Summary82w
Descriptive Headingsavg 2w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
AI readiness recommendation preview...
Upgrade to view recommendations

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
76/100
12
Passed
4
Critical
1
Warnings
Images & Alt Text
18/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
15/20
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
4/15
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.
62/100
C
172 mg
CO₂e / view
1.7 MB
Page Weight
60%
Cleaner Than
New Visitor
197 mg
vs
Returning (cached)
98 mg
Annual (10K/mo)
20.7 kg
Emission Segments
Data Center
8 mg
Network
51 mg
Device
113 mg
Resource Breakdown
JavaScript
360.0 KB
Images
53.8 KB
CSS
34.1 KB
Fonts
494.4 KB
HTML
42.2 KB
Other
719.5 KB
Green Hosting Verified
Worldstream Internet Solutions
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A

Security Score

88%Very Good
Static / Informational

HTTPS

No WAF

67d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

16.04.2026

Valid Until

15.07.2026

Subject Alternative Names (1)

www.appsignal.com

SHA-256 Fingerprint

5C:B1:61:34:16:EC:06:FA:61:7B:78:42:BA:71:03:1D:A5:D6:B6:75...

Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

age
0
cache-control
🔴 No Cache(private, no-cache, no-store, max-age=0, must-revalidate)
content-encoding
⚡ Brotli(br)
content-type
text/html; charset=utf-8
date
Sat, 09 May 2026 12:26:02 GMT
link
<https://https://www.appsignal.com/index.md>; rel="alternate...
Good Warning Issue

Email Infrastructure

Google Workspace

Score

95

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

aspmx3.googlemail.com
alt1.aspmx.l.google.com
aspmx2.googlemail.com
aspmx.l.google.com

+1 more

Domain Information

appsignal.com

Domain Age
13y 7m

Created

27.09.2012

Expires

27.09.2026

Last Updated

27.09.2025

Registrar

Hosting Concepts B.V. d/b/a Registrar.eu

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
Privacy policy page linked

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.
B
70/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Inter

WCAG Partial
75/100
Readability
/30
24/30

16px · LH 1.50

Hierarchy
/20
13/20

1.25x ratio

WCAG
/25
18/25

1:1 min contrast

Performance
/25
20/25

1 font · 3 req

Heading Font

Inter

Sans20px

Body Font

Inter

Sans16px

Contrast Ratio

1:1

9 issues

Reading Comfort

~33 CPL

Narrow lines
20px
h1
72px
h2
32px
h3
16px
p
Octave
Scale

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

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

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.0:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

Buy on MyFontsFluid Type (rem)Flesch 52

Color Palette

4 unique colors
Light
#98929d
Other· 3.8%
#0a1630
Primary· 87.8%
#fafafb
Secondary· 4.8%
#323f71
Secondary· 3.6%

Business & Marketing Stack

4 Tools Detected

Enterprise

CRM Systems

1
HubSpotMid-Market

Customer Relationship Management platforms

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

Advertising

1
Reddit PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

1
CookiebotMid-Market

Cookie consent and privacy compliance tools

4

Categories

4

Total Tools

0

Enterprise

3

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

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Scripts & Styles

22 Resources

20
Scripts
2
Styles
9
Async
2
Defer

Top Script Sources

local(11)eu-assets.i.posthog.com(4)js-eu1.hs-banner.com(1)js-eu1.hs-analytics.net(1)js-eu1.hscollectedforms.net(1)

Website Identity

AppSignal

AppSignal

Organization

All-in-one APM: errors, performance, logs, uptime, dashboards — one tool, one bill.

support@appsignal.com
www.appsignal.com
13 years old
Location detected: 🇳🇱 Netherlandsvia ip
Hosting Concepts B.V. d/b/a Registrar.eu📧 Google Workspaceen

Social Profiles

X (Twitter)Discord

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Last analyzed: 09 May 2026 at 12:26

Historical Analysis & Change Tracking