openfaas.com

https://openfaas.com· First analyzed 20 May 2026· Updated 20 May 2026

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openfaas.com

Mobile

Sponsored

Hosting Provider

GitHub Pages

pages.github.com

IP Address

185.199.109.153

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 San Francisco, United States

ASN

AS54113

Organization

GitHub, Inc

Server

GitHub.com

CDN

Fastly

Nameservers

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

Performance

100

Core Web Vitals

Weight

First Contentful Paint

614 ms10%

Speed Index

798 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1 MB

48 requests

0–49

50–89

90–100

Architecture Stack

JAMstack

⚡ SSG

Frontend

Framework

Jekyllv3.10.0

Infrastructure

Platform

GitHub Pages

CDN

Fastly

Technology Stack

6 Technologies Detected

CSS Frameworks

Analytics

Icon Libraries

Fonts

SEO Analysis

B76/100

Meta Tags11/15

Content10/12

Headings3/8

Technical20/25

E-E-A-T7/7

Images4/7

Links5/5

URL5/5

Social4/5

Freshness0/4

Mobile4/4

Indexability3/3

openfaas.comopenfaas.com

Home | OpenFaaS - Serverless Functions Made Simple

Serverless Functions Made Simple with Kubernetes.

Title Length50 chars

Recommended: 50-60 chars (~310px / 580px)

Description Length49 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

189 URLs

robots.txt

2 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

7/100

Poor

2 14 1

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

Sponsored

AI & LLM Readiness

D55/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

8/25

Citation

16/25

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

code blocksnav

Text ratio:10%

Words:1,036

Token eff.:Optimal

Sections/1K:23.2

Depth:2/5

Structured Data

1 JSON-LD

Person×1.3Organization×1.1WebSite

sameAs entity links

Citation Readiness

Opening Summary11w

Descriptive Headingsavg 5.3w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

AI readiness recommendation preview...

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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.

78/100

Passed

Critical

Warnings

Images & Alt Text

18/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

13/20

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

11/15

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.

1 recommendation

•Accessibility recommendation preview...

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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

130 mg

CO₂e / view

1.0 MB

Page Weight

70%

Cleaner Than

New Visitor

149 mg

Returning (cached)

74 mg

Annual (10K/mo)

15.6 kg

Emission Segments

Data Center

29 mg

Network

31 mg

Device

70 mg

Resource Breakdown

JavaScript

8.2 KB

Images

386.5 KB

CSS

46.1 KB

Fonts

1.3 KB

HTML

9.5 KB

Other

599.2 KB

Green Hosting Not Verified

GitHub Pages

2 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

72d

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

02.05.2026

Valid Until

31.07.2026

Subject Alternative Names (2)

openfaas.comwww.openfaas.com

SHA-256 Fingerprint

2A:B4:27:2E:B3:97:27:09:9F:C7:98:3D:5D:5A:7C:50:FD:D5:3D:25...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

access-control-allow-origin

age

cache-control

🟡 600s(max-age=600)

content-encoding

📦 Gzip(gzip)

content-length

9426

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (4)

alt2.aspmx.l.google.com

aspmx.l.google.com

alt1.aspmx.l.google.com

feedback-smtp.eu-west-1.amazonses.com

Domain Information

openfaas.com

Domain Age

8y 9m

Created

07.08.2017

Expires

07.08.2028

Last Updated

08.07.2025

Registrar

NameCheap, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

68/100

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...

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Typography & Readability

Rubik

WCAG Partial

65/100

Readability

/30

24/30

18px · LH 1.50

Hierarchy

/20

7/20

WCAG

/25

19/25

3.24:1 min contrast

Performance

/25

15/25

1 font · 1 req

Heading Font

Rubik

Sans

Body Font

Rubik

Sans18px

Contrast Ratio

3.24:1

Below AA

Reading Comfort

~34 CPL

Narrow lines

40px

29px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

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

⚠️ Partial contrast: 0 elements below WCAG AA threshold (min 3.2:1).

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

✅ Lean font stack: 1 font families keeps load times fast.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

GGoogle Fonts Buy on MyFontsFlesch 53

Color Palette

7 unique colors

Light

#f8f8f8

Text· 12.600000000000001%

#3a5ee8

Primary· 63.5%

#3088ad

Accent· 13.9%

#8dc9ea

Accent· 6.3%

#517ad0

Accent· 2%

#367fc3

Accent· 1%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(4)use.fontawesome.com(1)googletagmanager.com(1)

Website Identity

OpenFaaS - Serverless Functions Made Simple

Serverless Functions Made Simple with Kubernetes.

www.openfaas.com/

8 years old

Location detected: 🇺🇸 United Statesvia ip

NameCheap, Inc.📧 Google Workspaceen

Social Profiles

GitHub

Sponsored

Last analyzed: 20 May 2026 at 00:23

Historical Analysis & Change Tracking