loopback.io

https://loopback.io· First analyzed 16 May 2026· Updated 16 May 2026

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loopback.io

Mobile

Sponsored

Hosting Provider

GitHub Pages

pages.github.com

IP Address

185.199.110.153

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 San Francisco, United States

ASN

AS54113

Organization

GitHub, Inc

Server

GitHub.com

CDN

Fastly

Nameservers

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

Performance

Core Web Vitals

Weight

First Contentful Paint

745 ms10%

Speed Index

968 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2.3 MB

61 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Platform

GitHub Pages

CDN

Fastly

Technology Stack

7 Technologies Detected

CSS Frameworks

Analytics

Libraries

Icon Libraries

Fonts

SEO Analysis

D51/100

Meta Tags4/15

Content9/12

Headings5/8

Technical12/25

E-E-A-T3/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

loopback.ioloopback.io

LoopBack

No description available for this page.

Title Length8 chars

Recommended: 50-60 chars (~49px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

• Missing meta description — important for click-through rates in SERPs
• Most images missing alt text (44/44) — critical for accessibility and SEO
• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

11 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

4,023 URLs

robots.txt

1 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

3/100

Poor

1 14 2

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

Sponsored

AI & LLM Readiness

F39/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

0/25

Citation

8/25

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

nav

Text ratio:8%

Words:330

Token eff.:Optimal

Sections/1K:21.2

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary14w

Descriptive Headingsavg 4.1w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

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.

65/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

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

9/15

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.

2 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.

21/100

292 mg

CO₂e / view

2.3 MB

Page Weight

50%

Cleaner Than

New Visitor

333 mg

Returning (cached)

167 mg

Annual (10K/mo)

35.0 kg

Emission Segments

Data Center

65 mg

Network

70 mg

Device

157 mg

Resource Breakdown

JavaScript

52.0 KB

Images

2.2 MB

CSS

47.5 KB

Fonts

941 B

HTML

3.8 KB

Other

2.1 KB

Green Hosting Not Verified

GitHub Pages

5 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

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

28.04.2026

Valid Until

27.07.2026

Subject Alternative Names (2)

loopback.iowww.loopback.io

SHA-256 Fingerprint

19:62:FB:36:71:F4:DC:60:D3:21:BF:6D:6F:19:D6:34:59:74:9E:F0...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

access-control-allow-origin

age

cache-control

🟡 600s(max-age=600)

content-encoding

📦 Gzip(gzip)

content-length

3588

Good Warning Issue

Email Infrastructure

Forward Email

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx2.forwardemail.net

mx1.forwardemail.net

Domain Information

loopback.io

Domain Age

12y 10m

Created

21.07.2013

Expires

21.07.2026

Last Updated

11.05.2026

Registrar

1API GmbH

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

40/100

Not 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.

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

IBM Plex Sans

WCAG Partial

60/100

Readability

/30

20/30

14px · LH 1.71

Hierarchy

/20

11/20

4.57x ratio

WCAG

/25

16/25

1:1 min contrast

Performance

/25

13/25

1 font · 1 req

Heading Font

IBM Plex Sans

Sans64px

Body Font

IBM Plex Sans

Sans14px

Contrast Ratio

1:1

15 issues

Reading Comfort

~43 CPL

Narrow lines

64px

36px

14px

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

⚠️ Hard to read: Flesch score 45/100. Simplify sentences for wider reach.

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

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

✅ Strong hierarchy: Headlines are 4.6x larger than body text.

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

GGoogle FontsFlesch 45

Color Palette

5 unique colors

Light

#ffffff

Text· 9.9%

#1982ff

Accent· 47.5%

#3e5bfb

Primary· 11.6%

#c0d1f1

Accent· 2.6%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

11 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(2)dist(2)google-analytics.com(1)local(1)buttons.github.io(1)

Website Identity

loopback.io

12 years old

Location detected: 🇺🇸 United Statesvia ip

1API GmbH📧 Forward Emailen

Social Profiles

X (Twitter)GitHub

Sponsored

Last analyzed: 16 May 2026 at 01:09

Historical Analysis & Change Tracking