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SGSiteGraph

denverlibrary.org

Denver Public Library

Last scanned Jul 26, 2026, 1:19 PM

86

Overall score

Great

Summary

Phone: 720-865-1111 | Email: info@denverlibrary.org | Chat: https://www.denverlibrary.org/ask-us-chat. This website uses PHP. SEO is good (75/100) and accessibility is excellent (90/100). Security scores excellent (90/100) and performance excellent (90/100). Top issue: No H1 heading found.

Phone: 720-865-1111 | Email: info@denverlibrary.org | Chat: https://www.denverlibrary.org/ask-us-chat

Top issues to fix

5 issues found · 2 high priority

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • No H1 heading found

    SEO

    Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

  • 1 broken link on the page

    SEO

    Fix or remove broken links — they waste crawl budget and erode user trust.

75

SEO

3 issue(s) found

90

Performance

578 ms

90

Security

HTTPS & header checks

90

Accessibility

1 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

Phone: 720-865-1111 | Email: info@denverlibrary.org | Chat: https://www.denverlibrary.org/ask-us-chat

FacebookX (Twitter)InstagramYouTubeLinkedIn

Contact

Email, phone, and address published on this site's own pages.

Meta tags

Title
Denver Public Library
Description
Phone: 720-865-1111 | Email: info@denverlibrary.org | Chat: https://www.denverlibrary.org/ask-us-chat
Canonical
https://denverlibrary.org/
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Home
og:description
Phone: 720-865-1111 | Email: info@denverlibrary.org | Chat: https://www.denverlibrary.org/ask-us-chat
og:type
website
og:url
https://denverlibrary.org/node/605011

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

PHPBootstrapjQueryGoogle AnalyticsApache

Hosting & CDN

Hosting provider
—
CDN provider
—
IP address
209.236.108.107
ASN
—

DNS records

TypeValue
A
  • 209.236.108.107
AAAA—
MX
  • alt1.aspmx.l.google.com
  • aspmx3.googlemail.com
  • alt2.aspmx.l.google.com
  • aspmx2.googlemail.com
  • aspmx.l.google.com
TXT
  • v=spf1 ip4:209.236.108.101 ip4:97.107.141.21 ip4:35.80.141.6 ip4:44.229.121.55 ip4:148.59.100.16/28 include:_spf.alchemer.com include:_spf.google.com include:spf.protection.outlook.com include:_spf.mailgun.org -all
  • canva-site-verification=tpohAGXdTdYfmfoznNjUqg
  • google-site-verification=vUlWOvZoBSgbtq1pD9iF_FSI8C3cpMBRHCEfxDltlHY
NS
  • ns-720.awsdns-26.net
  • ns-1113.awsdns-11.org
  • ns-1848.awsdns-39.co.uk
  • ns-423.awsdns-52.com
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
drupal-prod.denverlibrary.org
Valid from
Jul 10, 2026
Valid to
Oct 8, 2026
Days until expiry
71
SAN domains
bibliotecadenver.org, denverlibrary.org, drupal-prod.denverlibrary.org, kids.denverlibrary.org, m.denverlibrary.org, services.denverlibrary.org, teen.denverlibrary.org, teens.denverlibrary.org, www.denverlibrary.org

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyMissing
  • X-Frame-OptionsEnabled
  • X-Content-Type-OptionsEnabled
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 22 · H3 9

Links

89 internal · 33 external · 1 broken

Images

12 total · 0 missing alt

Scripts / Styles

12 scripts · 14 stylesheets

JS / CSS size

481 KB · 442 KB

Page size

48.7 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
33
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • No H1 heading found
  • No structured data (JSON-LD) found
  • sitemap.xml not found

Accessibility issues

  • No H1 heading found

Scan details

Requested URL
https://denverlibrary.org
Final URL
https://denverlibrary.org
HTTP status
200
HTTP version
HTTP/1.1
Response time
578 ms
HTML size
48.7 KB
Redirect chain
https://denverlibrary.org

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Frequently asked questions

What technology does denverlibrary.org use?
denverlibrary.org is built with PHP, Bootstrap, jQuery, Google Analytics, Apache.
Is denverlibrary.org secure (HTTPS)?
Yes. denverlibrary.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 8, 2026.
Who hosts denverlibrary.org?
Hosting provider information for denverlibrary.org is not available yet.
What is denverlibrary.org's SEO score?
denverlibrary.org scored 75/100 for SEO in the latest analysis (fair).
What is denverlibrary.org's overall website score?
denverlibrary.org has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.