jsonfeed.org

https://jsonfeed.org· First analyzed 25 May 2026· Updated 25 May 2026

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jsonfeed.org

Mobile

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Hosting Provider

Linode (Akamai)

linode.com

IP Address

104.200.22.214

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Richardson, United States

ASN

AS63949

Organization

Linode

Server

Caddy

Nameservers

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

Performance

100

Core Web Vitals

Weight

First Contentful Paint

469 ms10%

Speed Index

610 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

9 KB

4 requests

0–49

50–89

90–100

Architecture Stack

JAMstack

⚡ SSG

Frontend

Framework

Hugov0.54.0

Infrastructure

Hosting

Linode (Akamai)

Technology Stack

2 Technologies Detected

CSS Frameworks

Tailwind CSS

Web Servers

Caddy

SEO Analysis

D51/100

Meta Tags4/15

Content8/12

Headings3/8

Technical16/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness2/4

Mobile4/4

Indexability3/3

jsonfeed.orgjsonfeed.org

JSON Feed

No description available for this page.

Title Length9 chars

Recommended: 50-60 chars (~58px / 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 (1/1) — critical for accessibility and SEO

12 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

12 URLs

robots.txt

1 rules

Allows all crawlers

Local SEO

Local Search Readiness

0/100

Poor

15 2

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

Sponsored

AI & LLM Readiness

D42/100

Bot Access

20/25

Machine Read.

12/25

Schema Data

0/25

Citation

10/25

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 blocks

Text ratio:34%

Words:369

Token eff.:Optimal

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary32w

Descriptive Headings

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

AI readiness recommendation preview...

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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.

51/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

6/20

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

1/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 recommendations

•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.

68/100

A+

1 mg

CO₂e / view

9.5 KB

Page Weight

95%

Cleaner Than

New Visitor

1 mg

Returning (cached)

<0.001 g

Annual (10K/mo)

120 g

Emission Segments

Data Center

<0.001 g

Network

<0.001 g

Device

<0.001 g

Resource Breakdown

CSS

3.4 KB

HTML

6.0 KB

Green Hosting Verified

Linode (Akamai)

Provider Match

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

52d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

18.04.2026

Valid Until

17.07.2026

Subject Alternative Names (1)

www.jsonfeed.org

SHA-256 Fingerprint

29:95:C4:05:5B:56:32:83:0B:0D:92:95:F7:73:07:C0:78:43:CE:31...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

access-control-allow-origin

alt-svc

h3=":443"; ma=2592000

content-length

5895

content-type

text/html; charset=utf-8

date

Mon, 25 May 2026 03:35:47 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

jsonfeed.org

Domain Age

9y 4m

Created

09.01.2017

Expires

09.01.2027

Last Updated

12.05.2026

Registrar

1API 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.

54/100

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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

-apple-system

WCAG Partial

80/100

Readability

/30

28/30

19px · LH 1.60

Hierarchy

/20

13/20

2x ratio

WCAG

/25

17/25

3.29:1 min contrast

Performance

/25

22/25

System fonts

Heading Font

-apple-system

Sans38px

Body Font

-apple-system

Sans19px

Contrast Ratio

3.29:1

29 issues

Reading Comfort

~44 CPL

Narrow lines

38px

19px

✅ Excellent readability: 19px body text is ideal for all devices.

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

✅ Easy to read: Flesch score 76/100 — accessible to general audiences.

⚠️ Partial contrast: 29 elements below WCAG AA threshold (min 3.3:1).

❌ Broken heading hierarchy: 2 level skip(s). Screen readers rely on sequential headings (h1→h2→h3).

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

Flesch 76

Color Palette

7 unique colors

Light

#ffffff

Background· 77.30000000000001%

#8be128

Primary· 15.000000000000002%

#a2ae94

Secondary· 3%

#82926f

Secondary· 1.2%

#cfeab2

Accent· 0.5%

#9ad25b

Accent· 0.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

2 Resources

Scripts

Styles

Async

Defer

Top Script Sources

Website Identity

jsonfeed.org

9 years old

Location detected: 🇺🇸 United Statesvia ip

1API GmbH

Social Profiles

GitHub

Sponsored

Last analyzed: 25 May 2026 at 03:36

Historical Analysis & Change Tracking