firebase.blog

https://firebase.blog· First analyzed 17 May 2026· Updated 17 May 2026

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firebase.blog

Mobile

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Hosting Provider

Google Cloud Platform

cloud.google.com

IP Address

199.36.158.100

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Mountain View, United States

ASN

AS54113

Organization

Google LLC

CDN

Fastly

Nameservers

ns4.googledomains.com.ns2.googledomains.com.ns1.googledomains.com.ns3.googledomains.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

433 ms10%

Speed Index

563 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

18 KB

33 requests

Image Optimization

WebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Google Cloud Platform

CDN

Fastly

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

4 Technologies Detected

Analytics

CSS Frameworks

Fonts

SEO Analysis

C67/100

Meta Tags5/15

Content8/12

Headings3/8

Technical20/25

E-E-A-T5/7

Images5/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile3/4

Indexability3/3

firebase.blogfirebase.blog

The Firebase Blog

News, tutorials, and updates from the Firebase team.

Title Length17 chars

Recommended: 50-60 chars (~101px / 580px)

Description Length52 chars

Recommended: 120-160 chars

Issues (1)

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

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

1 URLs

1 sub-sitemaps

robots.txt

3 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

D48/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

5/25

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

nav

Text ratio:3%

Words:367

Token eff.:Optimal

Sections/1K:35.4

Depth:1/5

Structured Data

1 JSON-LD

Organization×1.1WebSite

Citation Readiness

Opening Summary

Descriptive Headingsavg 8.1w

Canonical URL

Open Graph3/3

Twitter Card3/3

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.

81/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

12/15

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.

82/100

A+

2 mg

CO₂e / view

18.4 KB

Page Weight

95%

Cleaner Than

New Visitor

2 mg

Returning (cached)

1 mg

Annual (10K/mo)

228 g

Emission Segments

Data Center

<0.001 g

Network

<0.001 g

Device

1 mg

Resource Breakdown

JavaScript

5.6 KB

HTML

12.8 KB

Green Hosting Verified

Google Cloud Platform

Provider Match

2 recommendations

•Carbon footprint recommendation preview...

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Security Score

76%Good

Static / Informational

HTTPS

No WAF

41d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

30.03.2026

Valid Until

28.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

ridgewolf.commulberrysquare.comwww.bugraalbayrak.comwww.vafitness.camygameswishlist.commyprescriptor.comfinnishairports.fiadmin.eventosvillatoscana.com.mx+12 more

SHA-256 Fingerprint

DE:96:90:5A:8C:FD:73:30:E7:85:DE:12:CC:07:47:48:88:A7:60:7B...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

alt-svc

h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=864...

cache-control

🟡 1 Hours(max-age=3600)

content-encoding

⚡ Brotli(br)

content-length

12855

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

Domain Information

firebase.blog

Domain Age

8y 4m

Created

15.01.2018

Expires

15.01.2027

Last Updated

19.12.2025

Registrar

MarkMonitor, Inc (TLDs)

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

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.

76/100

Mobile Friendly15 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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Arial

WCAG Partial

54/100

Readability

/30

19/30

16px · LH --

Hierarchy

/20

8/20

WCAG

/25

17/25

2.63:1 min contrast

Performance

/25

10/25

System fonts

Heading Font

Arial

Sans

Body Font

Arial

Sans16px

Contrast Ratio

2.63:1

5 issues

Reading Comfort

Single Font Family

left aligned

16px

20px

Major Second

Scale

✅ Excellent readability: 16px body text is ideal for all devices.

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

⚠️ Partial contrast: 5 elements below WCAG AA threshold (min 2.6:1).

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

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

✅ System fonts: Zero font loading delay — best possible LCP impact.

Fluid Type (rem)Flesch 0

Color Palette

8 unique colors

17.9:1 AAA Light

#ffffff

Background· 9.2%

#171719

Text· 5.6%

#ffc523

Primary· 63.6%

#fed658

Accent· 7.7%

#ffb200

Accent· 4.4%

#bc993a

Accent· 3.2%

#35312b

Secondary· 2.5%

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(9)googletagmanager.com(1)

Website Identity

The Firebase Blog

News, tutorials, and updates from the Firebase team.

firebase.blog/

8 years old

Location detected: 🇺🇸 United Statesvia ip

MarkMonitor, Inc (TLDs)en

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Last analyzed: 17 May 2026 at 12:18

Historical Analysis & Change Tracking