rainviewer.com

https://rainviewer.com· First analyzed 10 May 2026· Updated 10 May 2026

Export

rainviewer.com

Mobile

Sponsored

Hosting Provider

Linode (Akamai)

linode.com

IP Address

50.116.19.27

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Richardson, United States

ASN

AS63949

Organization

Linode

Server

Nginx

Nameservers

ns-351.awsdns-43.com.ns-535.awsdns-02.net.ns-1075.awsdns-06.org.ns-1916.awsdns-47.co.uk.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

673 ms10%

Speed Index

875 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

561 KB

49 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Linode (Akamai)

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

10 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Microsoft Clarity

Advertising

Google Ads Google AdSense

CSS Frameworks

Fonts

Tag Managers

Web Servers

SEO Analysis

B76/100

Meta Tags7/15

Content10/12

Headings8/8

Technical23/25

E-E-A-T2/7

Images5/7

Links5/5

URL5/5

Social4/5

Freshness0/4

Mobile4/4

Indexability3/3

rainviewer.comrainviewer.com

Rain Viewer: Leading Weather Radar App for Accurate Rain & Snow For...

Explore Rain Viewer, the premier weather radar app providing real-time rain maps, snow forecasts, and precise weather alerts. Our commitment to safety and ac...

Title truncated. Description truncated.

Title Length87 chars

Recommended: 50-60 chars (~533px / 580px)

Description Length267 chars

Recommended: 120-160 chars

Issues (1)

• Title is too long (87 chars, ~533px). Will be truncated in search results.

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

18 URLs

18 sub-sitemaps

robots.txt

17 rules

Sitemap reference found

Local SEO

Local Search Readiness

28/100

Needs Work

7 12

Sponsored

AI & LLM Readiness

D48/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

3/25

Citation

15/25

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

Text ratio:6%

Words:1,138

Token eff.:Optimal

Sections/1K:24.6

Structured Data

2 JSON-LD

Organization×1.1

sameAs entity links

Citation Readiness

Opening Summary22w

Descriptive Headingsavg 3.5w

Canonical URL

Open Graph3/3

Twitter Card1/3

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.

60/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

18/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

5/15

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

5/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

2/15

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

4 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.

78/100

57 mg

CO₂e / view

561.5 KB

Page Weight

80%

Cleaner Than

New Visitor

65 mg

Returning (cached)

32 mg

Annual (10K/mo)

6.8 kg

Emission Segments

Data Center

3 mg

Network

17 mg

Device

37 mg

Resource Breakdown

JavaScript

248.6 KB

Images

272.0 KB

CSS

12.6 KB

Fonts

1.7 KB

HTML

26.5 KB

Green Hosting Verified

Linode (Akamai)

Provider Match

2 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

A+

Security Score

100%Excellent

Static / Informational

HTTPS

No WAF

31d

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+H3

Valid From

12.03.2026

Valid Until

10.06.2026

Subject Alternative Names (20)

api.rainviewer.comapp-static.rainviewer.comapps.meteolab.iocar.rainviewer.comcdn.rainviewer.comcontent.rainviewer.comcountly.rainviewer.comdata.rainviewer.com+12 more

SHA-256 Fingerprint

0A:D1:0C:48:2D:81:38:E1:29:05:70:EF:60:C2:6B:69:DE:86:A6:12...

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

content-encoding

📦 Gzip(gzip)

content-security-policy

frame-ancestors 'self';

content-type

text/html

date

Sun, 10 May 2026 14:42:40 GMT

etag

W/"69f8f5fa-1b79e"

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

alt4.aspmx.l.google.com

alt3.aspmx.l.google.com

aspmx.l.google.com

alt1.aspmx.l.google.com

+1 more

Domain Information

rainviewer.com

Domain Age

11y 2m

Created

19.02.2015

Expires

19.02.2027

Last Updated

16.02.2022

Registrar

NameCheap, Inc.

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.

62/100

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,maximum-scale=1

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

nunito sans

WCAG Partial

76/100

Readability

/30

26/30

17px · LH 1.60

Hierarchy

/20

18/20

2.94x ratio · ✓ H1→H6

WCAG

/25

12/25

1:1 min contrast

Performance

/25

20/25

1 font · 2 req

Heading Font

nunito sans

Sans50px

Body Font

nunito sans

Sans17px

Contrast Ratio

1:1

29 issues

Reading Comfort

~37 CPL

Narrow lines

50px

36px

28px

17px

✅ Excellent readability: 17px body text is ideal for all devices.

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

⚠️ Partial contrast: 29 elements below WCAG AA threshold (min 1.0:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 2.9x larger than body text.

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

GGoogle FontsFlesch 51

Color Palette

7 unique colors

21:1 AAA Dark

#000000

Background· 33.5%

#ffffff

Primary· 17.8%

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

Microsoft ClarityFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

15 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(3)connect.facebook.net(2)local(2)scripts.clarity.ms(1)clarity.ms(1)

Website Identity

Rain Viewer

SoftwareApplication

A complete weather radar app, with forecast and rain alerts. Available for iPhone, iPad, Apple Watch and Android devices.

www.rainviewer.com/

11 years old

Location detected: 🇺🇸 United Statesvia ip

NameCheap, Inc.📧 Google Workspaceen-US

Social Profiles

Facebook X (Twitter)Instagram LinkedIn

Sponsored

Last analyzed: 10 May 2026 at 14:43

Historical Analysis & Change Tracking