derv.com
International Oil and Gas Specialists | Derv
Last scanned Jul 30, 2026, 4:00 AM · 13 views
Overall score
Great
Summary
Welcome to Derv, Oil and Gas Specialists. This website uses WordPress. SEO is good (75/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing canonical link.
Welcome to Derv, Oil and Gas Specialists.
Top issues to fix
9 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
+3 more issues — details in the sections below.
SEO
4 issue(s) found
Performance
414 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Score history
-1 overall since Jul 22, 2026
- Overall
- 82
- SEO
- 75
- Security
- 65
- Performance
- 100
- Accessibility
- 90
Organization
Company details published in this site's own structured data.
Welcome to Derv, Oil and Gas Specialists.
Meta tags
- Title
- International Oil and Gas Specialists | Derv
- Description
- Welcome to Derv, Oil and Gas Specialists.
- Canonical
- Language
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- *.derv.com
- Valid from
- Jul 20, 2026
- Valid to
- Oct 18, 2026
- Days until expiry
- 80
- SAN domains
- *.derv.com, derv.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 0 · H3 0
Links
0 internal · 0 external · 0 broken
Images
0 total · 0 missing alt
Scripts / Styles
5 scripts · 3 stylesheets
JS / CSS size
262 B · 683 B
Page size
5.1 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing canonical link
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- Missing <html lang> attribute
Scan details
- Requested URL
- https://derv.com
- Final URL
- https://derv.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 414 ms
- HTML size
- 5.1 KB
- Redirect chain
- https://derv.com
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does derv.com use?
- derv.com is built with WordPress, Tailwind CSS, jQuery.
- Is derv.com secure (HTTPS)?
- Yes. derv.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 18, 2026.
- Who hosts derv.com?
- Hosting provider information for derv.com is not available yet.
- What is derv.com's SEO score?
- derv.com scored 75/100 for SEO in the latest analysis (fair).
- What is derv.com's overall website score?
- derv.com has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.
- Has derv.com's score changed over time?
- derv.com's overall score has declined by 1 point (from 83 to 82) since Jul 22, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card