StackOptic
Back to Search
openfoodfacts.org favicon

openfoodfacts.org

https://openfoodfacts.org· First analyzed 25 Apr 2026· Updated 25 Apr 2026
Export
openfoodfacts.org
Desktop screenshot of openfoodfacts.org
Mobile screenshot of openfoodfacts.org
Mobile

Sponsored

Hosting Provider

Free Foundation

IP Address

213.36.253.214

Site Location

🇫🇷 Francevia ip

Server Location

🇫🇷 Paris, France

ASN

AS12322

Organization

Free Foundation

Server

Nginx

Nameservers

ns20.ovh.net.dns20.ovh.net.

Performance

85

Core Web Vitals

Weight

First Contentful Paint
1.8 s10%
Speed Index
2.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
507 KB
99 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Free Foundation

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

8 Technologies Detected

Libraries

2
jQuery
jQuery UI

CSS Frameworks

2
Tailwind CSS
Foundation

Other

1
Modernizr

Icon Libraries

1
Material Icons

Analytics

1
Matomo

Web Servers

1
Nginxv1.18.0

SEO Analysis

C65/100
20
5
2
Meta Tags5/15
Content10/12
Headings3/8
Technical20/25
E-E-A-T2/7
Images5/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
O
openfoodfacts.orgopenfoodfacts.org

No Title Found

A collaborative, free and open database of ingredients, nutrition facts and information on food products from around the world

Title Length0 chars

Recommended: 50-60 chars

Description Length126 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing page title — critical for SEO rankings and SERP display
  • • Missing H1 tag — every page should have exactly one H1

7 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

100 rules

Local SEO

Local Search Readiness

17/100
Poor
4 13

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

Sponsored

AI & LLM Readiness

D43/100
Bot Access
12/25
Machine Read.
11/25
Schema Data
7/25
Citation
13/25

AI Bot Access

8/14 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
nav
Text ratio:1%
Words:888
Token eff.:Optimal
Sections/1K:7.9
Depth:1/5

Structured Data

2 JSON-LD
Organization×1.1WebSiteSearchAction
sameAs entity links

Citation Readiness

Opening Summary19w
Descriptive Headingsavg 3.3w
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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
71/100
10
Passed
3
Critical
3
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
12/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
7/15
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
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.
49/100
A
63 mg
CO₂e / view
507.4 KB
Page Weight
90%
Cleaner Than
New Visitor
72 mg
vs
Returning (cached)
36 mg
Annual (10K/mo)
7.5 kg
Emission Segments
Data Center
14 mg
Network
15 mg
Device
34 mg
Resource Breakdown
Images
456.0 KB
HTML
36.3 KB
Other
15.1 KB
Green Hosting Not Verified
Free Foundation
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

31%Critical
Interactive

HTTPS

No WAF

26d

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

21.02.2026

Valid Until

22.05.2026

Subject Alternative Names (2)

*.openfoodfacts.orgopenfoodfacts.org

SHA-256 Fingerprint

41:86:7F:06:BE:87:14:C8:67:7C:75:1D:F9:9A:FE:90:FA:3A:A6:14...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=UTF-8
date
Sat, 25 Apr 2026 09:02:42 GMT
expires
Fri, 24 Apr 2026 09:02:41 GMT
server
nginx/1.18.0
vary
Accept-Encoding
Good Warning Issue

Email Infrastructure

Google Workspace

Score

95

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

aspmx2.googlemail.com
alt2.aspmx.l.google.com
alt1.aspmx.l.google.com
aspmx.l.google.com

+1 more

Domain Information

openfoodfacts.org

Domain Age
14y 5m

Created

11.11.2011

Expires

11.11.2026

Last Updated

26.12.2025

Registrar

OVH sas

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.
B
76/100
Mobile Friendly2 breakpoints
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

Typography & Readability

Helvetica

WCAG Partial
58/100
Readability
/30
16/30

14px · LH 1.60

Hierarchy
/20
12/20

3x ratio

WCAG
/25
14/25

1.08:1 min contrast

Performance
/25
16/25

2 fonts

Heading Font

Helvetica

Sans42px

Body Font

Helvetica

Sans14px

Contrast Ratio

1.08:1

21 issues

Reading Comfort

~40 CPL

Narrow lines
42px
h1
36px
h2
25px
h3
14px
p

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

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

⚠️ Partial contrast: 21 elements below WCAG AA threshold (min 1.1:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

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

Buy on MyFontsFlesch 0

Color Palette

10 unique colors
Light
#ffffff
Primary· 31.099999999999998%
#f2e9e4
Background· 19.2%
#e4f6fe
Accent· 10.9%
#201b17
Secondary· 8.700000000000001%
#c77771
Secondary· 7.1%
#158583
Accent· 6.8%
#523a31
Secondary· 4.1%
#eccdbe
Accent· 3.9%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Matomo (Piwik)Mid-Market
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Growing marketing technology adoption

Sponsored

Scripts & Styles

20 Resources

17
Scripts
3
Styles
1
Async
0
Defer

Top Script Sources

static.openfoodfacts.org(16)analytics.openfoodfacts.org(1)

Website Identity

Open Food Facts

Open Food Facts

Organization
world.openfoodfacts.org
14 years old
Location detected: 🇫🇷 Francevia ip
OVH sas📧 Google Workspaceen

Sponsored

Last analyzed: 25 Apr 2026 at 09:03

Historical Analysis & Change Tracking