StackOptic
Back to Search
backdropcms.org favicon

backdropcms.org

https://backdropcms.org· First analyzed 07 May 2026· Updated 07 May 2026
Export
backdropcms.org
Desktop screenshot of backdropcms.org
Mobile screenshot of backdropcms.org
Mobile

Sponsored

Hosting Provider

Fastly, Inc.

IP Address

151.101.67.52

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Montreal, Canada

ASN

AS54113

Organization

Fastly, Inc.

Server

Nginx

CDN

Fastly

Nameservers

dns2.registrar-servers.com.dns1.registrar-servers.com.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
842 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
612 KB
39 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Fastly, Inc.
CDN
Fastly

Technology Stack

7 Technologies Detected

Analytics

4
Google Analytics
Google Analytics 4
Google Tag Manager
Segment

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Web Servers

1
Nginxv1.18.0

SEO Analysis

C68/100
20
5
1
Meta Tags14/15
Content9/12
Headings8/8
Technical18/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
B
backdropcms.orgbackdropcms.org

Backdrop CMS | Free Open Source CMS built in PHP

Backdrop CMS is a simple, lightweight, and easy to use Content Management System used to build attractive, professional websites.

Title Length48 chars

Recommended: 50-60 chars (~297px / 580px)

Description Length129 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (6/6) — critical for accessibility and SEO

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

1,624 URLs

robots.txt

56 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.

Sponsored

AI & LLM Readiness

D44/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
0/25
Citation
13/25

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
header/footer
Text ratio:8%
Words:481
Token eff.:Optimal
Sections/1K:22.9
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary78w
Descriptive Headingsavg 5.3w
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

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.
A
84/100
12
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
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
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
6/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

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.
79/100
A
62 mg
CO₂e / view
612.5 KB
Page Weight
80%
Cleaner Than
New Visitor
71 mg
vs
Returning (cached)
35 mg
Annual (10K/mo)
7.4 kg
Emission Segments
Data Center
3 mg
Network
18 mg
Device
41 mg
Resource Breakdown
JavaScript
91.2 KB
Images
368.6 KB
CSS
139.9 KB
Fonts
2.7 KB
HTML
10.1 KB
Green Hosting Verified
Fastly, Inc.
Provider Match
2 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

51%Poor
Interactive

HTTPS

No WAF

26d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Certainly

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

03.05.2026

Valid Until

02.06.2026

Subject Alternative Names (3)

backdropcms.orgdocs.backdropcms.orgwww.backdropcms.org

SHA-256 Fingerprint

A5:D4:7F:6F:E1:FE:54:34:86:7E:66:CF:BF:5B:F6:C7:67:58:61:23...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
age
0
cache-control
🟡 300s(public, max-age=300)
content-encoding
📦 Gzip(gzip)
content-language
en
content-length
10025
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

73

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

eforward3.registrar-servers.com
eforward5.registrar-servers.com
eforward2.registrar-servers.com
eforward1.registrar-servers.com

+1 more

Domain Information

backdropcms.org

Domain Age
12y 8m

Created

31.08.2013

Expires

31.08.2027

Last Updated

05.09.2025

Registrar

NameCheap, Inc.

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

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.
C
69/100
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

Typography & Readability

Open Sans

WCAG Partial
78/100
Readability
/30
19/30

20px · LH 1.67

Hierarchy
/20
19/20

5x ratio · ✓ H1→H6

WCAG
/25
18/25

1:1 min contrast

Performance
/25
22/25

2 fonts · 2 req

Heading Font

Open Sans

Sans100px

Body Font

Open Sans

Sans20px

Contrast Ratio

1:1

18 issues

Reading Comfort

~31 CPL

Narrow lines
100px
h1
40px
h2
40px
h3
20px
p

✅ Excellent readability: 20px body text is ideal for all devices.

⚠️ Partial contrast: 18 elements below WCAG AA threshold (min 1.0:1).

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

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

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

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

GGoogle FontsBuy on MyFontsVariable FontsFluid Type (rem)

Color Palette

9 unique colors
21:1 AAA Dark
#000000
Background· 88.3%
#ffffff
Background· 3%
#4a03ee
Primary· 2.5%
#473d56
Secondary· 1%
#1b0057
Accent· 0.2%

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

Sponsored

Scripts & Styles

18 Resources

8
Scripts
10
Styles
2
Async
0
Defer

Top Script Sources

backdropcms.org(5)googletagmanager.com(3)

Website Identity

backdropcms.org

12 years old
Location detected: 🇨🇦 Canadavia ip
NameCheap, Inc.en

Sponsored

Last analyzed: 07 May 2026 at 02:23

Historical Analysis & Change Tracking