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SGSiteGraph

merino.services.mozilla.com

FastAPI - Swagger UI

Last scanned Jul 23, 2026, 12:52 PM

75

Overall score

Fair

Summary

This website uses Nginx hosted on Fastly behind Fastly CDN. SEO is fair (50/100) and accessibility is good (80/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Missing meta description.

United States
Hosted on Fastly

Top issues to fix

11 issues found · 3 high priority

  • Missing Content-Security-Policy header

    Security

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

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • 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.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • Missing canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

+5 more issues — details in the sections below.

50

SEO

7 issue(s) found

100

Performance

641 ms

75

Security

HTTPS & header checks

80

Accessibility

2 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.

Meta tags

Title
FastAPI - Swagger UI
Description
Canonical
Language
Charset
Viewport
width=device-width, initial-scale=1.0
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
—
og:description
—
og:type
—
og:url
—

Twitter Card

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

Technologies

Detected frameworks, languages, and tools.

Nginx

Hosting & CDN

Hosting provider
Fastly
CDN provider
Fastly
IP address
151.101.193.91
ASN
AS54113 (FASTLY - Fastly, Inc., US)

DNS records

TypeValue
A
  • 151.101.193.91
  • 151.101.65.91
  • 151.101.129.91
  • 151.101.1.91
AAAA
  • 2a04:4e42::347
  • 2a04:4e42:400::347
  • 2a04:4e42:600::347
  • 2a04:4e42:200::347
MX—
TXT—
NS—
CAA—
CNAME
  • mozilla.map.fastly.net
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
merino.services.mozilla.com
Valid from
May 29, 2026
Valid to
Aug 27, 2026
Days until expiry
35
SAN domains
merino.services.mozilla.com

Security headers

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

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 0 · H3 0

Links

0 internal · 0 external · 0 broken

Images

0 total · 0 missing alt

Scripts / Styles

2 scripts · 1 stylesheets

JS / CSS size

386 B · 0 B

Page size

1006 B

Robots.txt & Sitemap

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

SEO issues

  • Missing meta description
  • Missing canonical link
  • No H1 heading found
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • No H1 heading found
  • Missing <html lang> attribute

Scan details

Requested URL
https://merino.services.mozilla.com
Final URL
https://merino.services.mozilla.com/docs
HTTP status
200
HTTP version
HTTP/2
Response time
641 ms
HTML size
1006 B
Redirect chain
https://merino.services.mozilla.com → https://merino.services.mozilla.com/docs

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does merino.services.mozilla.com use?
merino.services.mozilla.com is built with Nginx.
Is merino.services.mozilla.com secure (HTTPS)?
Yes. merino.services.mozilla.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Aug 27, 2026.
Who hosts merino.services.mozilla.com?
merino.services.mozilla.com is hosted on Fastly, behind Fastly CDN.
What is merino.services.mozilla.com's SEO score?
merino.services.mozilla.com scored 50/100 for SEO in the latest analysis (fair).
What is merino.services.mozilla.com's overall website score?
merino.services.mozilla.com has an overall SiteGraph score of 75/100, combining SEO, performance, security, and accessibility.