masterlock.com
Master Lock® Official Site | Padlocks & Security Products
Last scanned Aug 24, 2026, 1:22 PM
Overall score
Great
Summary
Master Lock is recognized around the world as the authentic, enduring name in locks, combination padlocks and security products. This website uses Nginx. SEO is fair (70/100) and accessibility is good (85/100). Security scores excellent (100/100) and performance excellent (90/100). Top issue: Meta description longer than 160 characters.
Master Lock is recognized around the world as the authentic, enduring name in locks, combination padlocks and security products. Learn more about our extensive assortment of security solutions.
Top issues to fix
7 issues found
4 cookies without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
Missing OpenGraph tags
SEOAdd og:title/og:description/og:image so shared links render a proper preview card.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
+1 more issue — details in the sections below.
SEO
5 issue(s) found
Performance
746 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
- you@email.com
Meta tags
- Title
- Master Lock® Official Site | Padlocks & Security Products
- Description
- Master Lock is recognized around the world as the authentic, enduring name in locks, combination padlocks and security products. Learn more about our extensive assortment of security solutions.
- Canonical
- https://www.masterlock.com/
- Language
- en
- Charset
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- 3.13.211.249
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME |
|
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.2
- Issuer
- Amazon
- Subject
- *.masterlock.com
- Valid from
- Nov 11, 2025
- Valid to
- Dec 9, 2026
- Days until expiry
- 107
- SAN domains
- *.masterlock.com, *.large.masterlock.com, *.small.masterlock.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 4 cookie(s) observed
Content & assets
Headings
H1 1 · H2 26 · H3 1
Links
90 internal · 14 external · 0 broken
Images
34 total · 16 missing alt
Scripts / Styles
65 scripts · 3 stylesheets
JS / CSS size
1019 KB · 737 KB
Page size
175 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- More than 20% of images are missing alt text
Scan details
- Requested URL
- https://masterlock.com
- Final URL
- https://www.masterlock.com/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 743 ms
- HTML size
- 175 KB
- Redirect chain
- https://masterlock.com → https://www.masterlock.com/
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Frequently asked questions
- What technology does masterlock.com use?
- masterlock.com is built with Bootstrap, jQuery, Google Analytics, Google Ads, Meta Pixel, Nginx.
- Is masterlock.com secure (HTTPS)?
- Yes. masterlock.com uses TLS 1.2 with a certificate issued by Amazon, valid until Dec 9, 2026.
- Who hosts masterlock.com?
- Hosting provider information for masterlock.com is not available yet.
- What is masterlock.com's SEO score?
- masterlock.com scored 70/100 for SEO in the latest analysis (fair).
- What is masterlock.com's overall website score?
- masterlock.com has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card