nationalmap.gov

https://nationalmap.gov· First analyzed 29 Apr 2026· Updated 29 Apr 2026

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nationalmap.gov

Mobile

Sponsored

Hosting Provider

U.S. Department of the Interior

IP Address

137.227.233.178

Site Location

🇺🇸 United Statesvia phone

Server Location

🇺🇸 Washington, United States

ASN

AS22284

Organization

U.S. Department of the Interior

CDN

Cloudflare

WAF

Cloudflare

Nameservers

chin.ns.cloudflare.com.ram.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

3.6 s10%

Speed Index

4.7 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1022 KB

180 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Drupal

Progressive Web App

Web Manifest

Technology Stack

9 Technologies Detected

Analytics

Libraries

UI Components

CSS Frameworks

Icon Libraries

Tag Managers

SEO Analysis

C63/100

Meta Tags12/15

Content3/12

Headings5/8

Technical18/25

E-E-A-T0/7

Images5/7

Links5/5

URL5/5

Social3/5

Freshness0/4

Mobile4/4

Indexability3/3

nationalmap.govnationalmap.gov

The National Map | U.S. Geological Survey

As a cornerstone of the U.S. Geological Survey's National Geospatial Program (NGP), The National Map (TNM) is a collaborative effort among the USGS and gover...

Description truncated.

Title Length41 chars

Recommended: 50-60 chars (~242px / 580px)

Description Length272 chars

Recommended: 120-160 chars

Issues (1)

• Very thin content (7 words). Search engines need substantial content for ranking.

7 issues found

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Crawlability

Sitemap

Type: index

77 URLs

77 sub-sitemaps

robots.txt

42 rules

Sitemap reference found

Local SEO

Local Search Readiness

22/100

Needs Work

7 9 2

Sponsored

AI & LLM Readiness

F34/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

0/25

Citation

7/25

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:2%

Words:1,491

Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph3/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

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.

77/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

10/20

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.

35/100

126 mg

CO₂e / view

1022.1 KB

Page Weight

70%

Cleaner Than

New Visitor

145 mg

Returning (cached)

72 mg

Annual (10K/mo)

15.2 kg

Emission Segments

Data Center

28 mg

Network

30 mg

Device

68 mg

Resource Breakdown

JavaScript

619.0 KB

Images

10.4 KB

CSS

377.0 KB

HTML

15.7 KB

Green Hosting Not Verified

U.S. Department of the Interior

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

36%Critical

Interactive

HTTPS

No WAF

134d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1+H3

Valid From

15.08.2025

Valid Until

10.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (3)

*.usgs.govusgs.govwww.usgs.gov

SHA-256 Fingerprint

57:70:A0:63:A1:44:25:8C:58:7B:7D:86:89:DA:74:CE:76:38:F1:01...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

connection

content-type

text/html

strict-transport-security

max-age=31536000; includeSubDomains; preload

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

Domain Information

nationalmap.gov

Domain Age

22y 1m

Created

05.03.2004

Expires

02.09.2026

Last Updated

07.09.2025

Registrar

get.gov

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.

77/100

Mobile Friendly145 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=1.0

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Public Sans Web + Merriweather Web

WCAG Fail

64/100

Readability

/30

22/30

16px · LH 1.50

Hierarchy

/20

14/20

2.62x ratio

WCAG

/25

14/25

1:1 min contrast

Performance

/25

14/25

2 fonts · 8 req

Heading Font

Public Sans Web

Sans42px

Body Font

Merriweather Web

Sans16px

Contrast Ratio

1:1

40 issues

Reading Comfort

~40 CPL

Narrow lines

42px

36px

26px

16px

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

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

❌ Very complex text: Flesch score 2/100. Consider shorter sentences and simpler words.

❌ Low contrast: 40 elements fail WCAG AA (min 1.0:1). Increase text/background contrast.

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

✅ Strong hierarchy: Headlines are 2.6x larger than body text.

Buy on MyFontsFlesch 2

Color Palette

9 unique colors

7.08:1 AAA Light

#ffffff

Background· 20.7%

#5c5850

Other· 16.4%

#e9e4d9

Secondary· 26.3%

#dcd0bc

Secondary· 13.4%

#021c3e

Primary· 7.6%

#c6b09b

Secondary· 6.8%

#f3f2ef

Secondary· 3.3%

#102d49

Primary· 2.7%

Business & Marketing Stack

3 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

HotjarMid-Market

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(11)googletagmanager.com(4)youtube.com(2)static.hotjar.com(1)script.hotjar.com(1)

Website Identity

nationalmap.gov

tnm_help@usgs.gov

+18882758747

22 years old

answers.usgs.gov

Location detected: 🇺🇸 United Statesvia phone

get.goven

Social Profiles

Facebook X (Twitter)Instagram LinkedIn

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Last analyzed: 29 Apr 2026 at 15:49

Historical Analysis & Change Tracking