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px4.io

https://px4.io· First analyzed 16 May 2026· Updated 16 May 2026
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px4.io
Desktop screenshot of px4.io
Mobile screenshot of px4.io
Mobile

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Hosting Provider

Fastly, Inc.

IP Address

151.101.66.159

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Montreal, Canada

ASN

AS54113

Organization

Fastly, Inc.

Server

Flywheel/5.1.0

CDN

Fastly

Nameservers

ns3.dnsimple-edge.io.ns4.dnsimple-edge.org.ns1.dnsimple-edge.com.ns2.dnsimple-edge.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
592 ms10%
Speed Index
770 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
834 KB
63 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms
Diviv4.27.4Custom
by Elegant Themes
View Theme

Technology Stack

18 Technologies Detected

Plugins

11
AirtablesapiconsumerpluginSchedapiconsumerplugin
Contact Form 7
Custom Twitter FeedsGitapiconsumerGitapiconsumerlatestversionData Tables Generator By Supsystic
Akismet
Popup Maker
Yoast SEO
Jetpack

Libraries

2
jQueryv3.7.1
jQuery UI

UI Components

1
Slick Carousel

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Platforms

1
Fly.io

SEO Analysis

B75/100
23
6
2
Meta Tags9/15
Content8/12
Headings6/8
Technical24/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social4/5
Freshness4/4
Mobile4/4
Indexability3/3
P
px4.iopx4.io

Open Source Autopilot for Drones - PX4 Autopilot

No description available for this page.

Title Length48 chars

Recommended: 50-60 chars (~291px / 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 (11/12) — critical for accessibility and SEO

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

7 URLs

7 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

10/100
Poor
3 13 1

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D53/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
4/25
Citation
18/25

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:4%
Words:395
Token eff.:Optimal
Sections/1K:10.1
Depth:2/5

Structured Data

4 JSON-LD
WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary35w
Descriptive Headingsavg 6w
Canonical URL
Open Graph2/3
Twitter Card1/3
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
74/100
12
Passed
4
Critical
1
Warnings
Images & Alt Text
20/20
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
5/15
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
10/15
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.
64/100
B
84 mg
CO₂e / view
833.6 KB
Page Weight
80%
Cleaner Than
New Visitor
96 mg
vs
Returning (cached)
48 mg
Annual (10K/mo)
10.1 kg
Emission Segments
Data Center
4 mg
Network
25 mg
Device
55 mg
Resource Breakdown
JavaScript
176.7 KB
Images
216.4 KB
CSS
424.2 KB
HTML
15.6 KB
Other
669 B
Green Hosting Verified
Fastly, Inc.
Provider Match
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

36%Critical
Interactive

HTTPS

No WAF

66d

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

23.04.2026

Valid Until

22.07.2026

Subject Alternative Names (2)

px4.iowww.px4.io

SHA-256 Fingerprint

1D:6C:18:13:D0:C5:1C:2D:FF:02:F8:4E:8A:8D:9A:20:2E:43:3D:90...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
content-encoding
📦 Gzip(gzip)
content-length
15707
content-type
text/html; charset=UTF-8
date
Sat, 16 May 2026 16:34:49 GMT
fastly-restarts
1
Good Warning Issue

Email Infrastructure

Google Workspace

Score

68

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (7)

mxb.mailgun.org
aspmx.l.google.com
alt1.aspmx.l.google.com
alt2.aspmx.l.google.com

+3 more

Domain Information

px4.io

Domain Age
11y 9m

Created

19.08.2014

Expires

19.08.2026

Last Updated

13.05.2026

Registrar

Key-Systems GmbH

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.
C
66/100
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=1.0, maximum-scale=1.0, user-scalable=0
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Cabin

WCAG Partial
67/100
Readability
/30
21/30

16px · LH 1.56

Hierarchy
/20
18/20

5x ratio

WCAG
/25
14/25

1:1 min contrast

Performance
/25
14/25

1 font · 13 req

Heading Font

Cabin

Sans80px

Body Font

Cabin

Sans16px

Contrast Ratio

1:1

15 issues

Reading Comfort

~31 CPL

Narrow lines
80px
h1
60px
h2
20px
h3
20px
h4
16px
p

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

✅ Optimal line spacing: 1.56 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 26/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 15 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 5.0x larger than body text.

Buy on MyFontsFlesch 26

Color Palette

5 unique colors
21:1 AAA Dark
#000000
Background· 65.19999999999999%
#ffffff
Background· 29.100000000000005%
#616f54
Primary· 2.5%
#b4cd99
Secondary· 1.2%

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

28 Resources

18
Scripts
10
Styles
0
Async
16
Defer

Top Script Sources

px4.io(14)kit.fontawesome.com(1)cdnjs.cloudflare.com(1)cdn.jsdelivr.net(1)stats.wp.com(1)

Website Identity

Open Source Autopilot for Drones - PX4 Autopilot

Open Source Autopilot for Drones

px4.io/
11 years old
Location detected: 🇨🇦 Canadavia ip
Key-Systems GmbH📧 Google Workspaceen-US

Sponsored

Last analyzed: 16 May 2026 at 16:35

Historical Analysis & Change Tracking