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opentopography.org

https://opentopography.org· First analyzed 20 May 2026· Updated 20 May 2026
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opentopography.org
Desktop screenshot of opentopography.org
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Mobile

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Hosting Provider

Super.so
super.so

IP Address

132.249.112.75

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 La Jolla, United States

ASN

AS195

Organization

San Diego Supercomputer Center

Server

Apache

Nameservers

ns0.sdsc.edu.ns1.sdsc.edu.

Performance

74

Core Web Vitals

Weight

First Contentful Paint
3.8 s10%
Speed Index
5.0 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
4.5 MB
53 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
CMS
Drupal
Infrastructure
Hosting
Super.so

Technology Stack

7 Technologies Detected

CSS Frameworks

2
Bootstrapv3.2.0
Tailwind CSS

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQuery

Icon Libraries

1
Font Awesome

Web Servers

1
Apachev2.4.52

SEO Analysis

C66/100
18
7
1
Meta Tags4/15
Content11/12
Headings7/8
Technical23/25
E-E-A-T2/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
O
opentopography.orgopentopography.org

Home | OpenTopography

No description available for this page.

Title Length21 chars

Recommended: 50-60 chars (~133px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing meta description — important for click-through rates in SERPs

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

1,020 URLs

robots.txt

70 rules

Local SEO

Local Search Readiness

15/100
Poor
4 13

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

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AI & LLM Readiness

D45/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
5/25
Citation
9/25

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
navheader/footer
Text ratio:8%
Words:516
Token eff.:Optimal
Sections/1K:5.8
Depth:2/5

Structured Data

1 JSON-LD
Organization×1.1SearchAction
sameAs entity links

Citation Readiness

Opening Summary
Descriptive Headingsavg 2.3w
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.
A
83/100
12
Passed
2
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
17/20
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
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
3/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

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.
13/100
F
566 mg
CO₂e / view
4.5 MB
Page Weight
15%
Cleaner Than
New Visitor
647 mg
vs
Returning (cached)
324 mg
Annual (10K/mo)
68.0 kg
Emission Segments
Data Center
127 mg
Network
136 mg
Device
304 mg
Resource Breakdown
JavaScript
70.8 KB
Images
4.3 MB
CSS
60.2 KB
HTML
9.2 KB
Green Hosting Not Verified
Super.so
8 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

41%Poor
Interactive

HTTPS

No WAF

60d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

20.04.2026

Valid Until

19.07.2026

Subject Alternative Names (2)

opentopography.orgwww.opentopography.org

SHA-256 Fingerprint

1A:8A:16:33:96:09:FC:FF:87:E7:1D:BF:EC:34:E0:0A:F9:7F:71:4B...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-cache, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-language
en
content-length
9078
content-type
text/html; charset=utf-8
date
Wed, 20 May 2026 01:43:23 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

40

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

inbound.ucsd.edu

Domain Information

opentopography.org

Domain Age
18y 1m

Created

08.04.2008

Expires

08.04.2027

Last Updated

13.06.2024

Registrar

GoDaddy.com, LLC

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

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.
C
63/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Helvetica Neue

WCAG Partial
71/100
Readability
/30
24/30

16px · LH 1.60

Hierarchy
/20
13/20

2.19x ratio

WCAG
/25
17/25

1:1 min contrast

Performance
/25
17/25

System fonts

Heading Font

Helvetica Neue

Sans35px

Body Font

Helvetica Neue

Sans16px

Contrast Ratio

1:1

6 issues

Reading Comfort

Single Font Family

left aligned
35px
h1
28px
h2
19px
h4
16px
p

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

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

⚠️ Partial contrast: 6 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 2.2x larger than body text.

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

Color Palette

5 unique colors
Light
#ffffff
Background· 51.3%
#030708
Background· 31.5%
#306baa
Primary· 8.2%
#a2b7bd
Secondary· 4.8%
#27588b
Accent· 4.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

9 Resources

7
Scripts
2
Styles
1
Async
0
Defer

Top Script Sources

opentopography.org(5)maxcdn.bootstrapcdn.com(1)googletagmanager.com(1)

Website Identity

OpenTopography

OpenTopography

Organization

NSF funded OpenTopography facilitates community access to high-resolution, Earth science-oriented, topography data (Airborne lidar, structure from motion photogrammetry, Terrestrial Laser Scanner), and related tools and resources.

www.opentopography.org
18 years old
Location detected: 🇺🇸 United Statesvia ip
GoDaddy.com, LLCen

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Last analyzed: 20 May 2026 at 01:43

Historical Analysis & Change Tracking