Sheernox Technology Group

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DNS & Content Delivery

Faster pages, safer domains, and email that lands in the inbox.

We manage your DNS, put your website behind a global content delivery network, and lock down your domains and email, on our platform or the one you already use.

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  1. VisitorSomeone types your domain or taps a link.
  2. DNSDNS answers with the nearest edge location, signed with DNSSEC.
  3. EdgeThe edge checks the firewall, terminates TLS, and serves cached content.
  4. ShieldCache misses go through one origin shield, so your server sees a fraction of the traffic.
  5. OriginYour server builds only what the edge cannot cache.
ResolveDNS that is fast and correctDeliverContent from the nearest edgeProtectStop attacks at the edgeMonitorKnow it is working

Twelve Services, One Edge

From the first DNS lookup to the last byte of video, scoped and quoted for your site.

Resolve

Managed DNS

We host, document, and change your DNS records for you, with every change reviewed before it goes live.

  • Zone setup and record clean-up
  • Change requests handled by ticket
  • DNSSEC signing
  • Record history and documentation
Resolve

Domain and DNS Migration

Move domains and DNS zones between registrars and providers with lowered TTLs and a planned cutover, so sites and email keep working.

  • Full record inventory before the move
  • TTL planning and scheduled cutover
  • Registrar transfer and lock
  • Post-move checks of web and email
Resolve

Email Authentication

SPF, DKIM, and DMARC set up for every service that sends as your domain, then moved step by step to a reject policy.

  • Sending source inventory
  • SPF, DKIM, and DMARC records
  • DMARC report review and staged enforcement
  • MTA-STS and BIMI where they fit
Deliver

CDN Setup and Tuning

Your site behind a content delivery network, with caching rules tuned so pages, images, and files load from the edge.

  • Pull zone or proxy setup
  • Cache rules per path and file type
  • Origin shield and tiered caching
  • Cache purge on publish
Deliver

Image and Asset Optimization

Images resized and converted to WebP or AVIF at the edge, plus compression and minification for scripts and styles.

  • Automatic WebP and AVIF
  • Responsive image sizes
  • Brotli and gzip compression
  • Before and after speed report
Deliver

Video Streaming and Large Files

Video hosting with adaptive streaming and protected downloads for large files, without filling your web server.

  • Encoding to adaptive bitrates
  • Embeddable player
  • Signed links for protected content
  • Storage replicated across regions
Deliver

Static Sites at the Edge

Static and Jamstack sites deployed straight to edge storage, with no web server to patch.

  • Build and deploy pipeline
  • Atomic publishes and cache purge
  • Custom domains and TLS
  • Redirect and header rules
Protect

Web Application Firewall

Managed firewall rules that block common attacks, plus custom rules for your login pages, forms, and admin areas.

  • Managed rulesets for common exploits
  • Custom rules and rate limits
  • Country and network blocking where needed
  • Monthly rule review
Protect

DDoS and Bot Protection

Traffic floods absorbed at the edge and abusive bots challenged before they reach your server.

  • Always-on DDoS mitigation
  • Bot scoring and challenges
  • Privacy-friendly form protection
  • Origin IP kept private
Protect

SSL/TLS and Certificates

Certificates issued and renewed automatically at the edge and origin, with modern TLS settings and HSTS.

  • Edge and origin certificates
  • TLS 1.3 and HSTS
  • Automatic renewal
  • Mixed-content clean-up
Monitor

Load Balancing and Failover

Health checks on your servers, with traffic moved to a healthy one when a server stops answering.

  • Health checks from several regions
  • Failover pools
  • Geographic steering
  • Alerting on failover
Monitor

Uptime and Performance Monitoring

Uptime, DNS, and certificate checks with alerts, and monthly reports on cache hit ratio, threats blocked, and page speed.

  • Uptime and DNS checks
  • Certificate and domain expiry alerts
  • Cache and security reports
  • Core Web Vitals tracking

Before and After the Edge

What changes when someone owns your DNS and delivery.

Topic Without a plan With Sheernox
DNSWithout a plan: Records spread across old registrars and nobody has the loginWith Sheernox: One documented zone with change history
SpeedWithout a plan: Every visitor fetches every file from one serverWith Sheernox: Most requests answered from a nearby edge
AttacksWithout a plan: Bots and floods hit your server directlyWith Sheernox: Filtered at the edge before they reach it
EmailWithout a plan: Messages land in spam, and spoofing goes unnoticedWith Sheernox: SPF, DKIM, and DMARC enforced and watched
CertificatesWithout a plan: Expired certificate warnings, found by customersWith Sheernox: Renewed automatically, with expiry alerts

How a Move Works

Every change is planned, scheduled, and checked, so your website and email keep working.

  1. 1. Audit

    We map your domains, DNS records, email senders, and how your site is served today.

  2. 2. Plan

    You get a written plan: the platform, the records to change, the cutover window, and the rollback.

  3. 3. Cut over

    We lower TTLs, make the change in a planned window, and check web and email right after.

  4. 4. Manage

    We handle changes, renewals, and alerts, and report on speed and security every month.

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Questions We Hear Often

What does a CDN actually do for my site?

A content delivery network keeps copies of your pages, images, and files on servers around the world and answers each visitor from a nearby one. Pages load faster, and your own server handles far less traffic.

Do I have to move my domain to use your DNS service?

No. Your domain can stay with its registrar; we point it at the DNS provider we manage. If you want, we can also consolidate your domains with Sheernox.

Can you manage the DNS or CDN provider we already use?

Yes. After the audit we either take over the provider you already use or recommend a move, and the written plan explains why.

Will my email or website go down during a DNS move?

We inventory every record first, lower TTLs ahead of time, and cut over in a planned window, then test web and email straight away. Moves done this way are normally seamless.

Why are my emails going to spam?

Missing or broken SPF, DKIM, or DMARC records are the most common cause. We find every service that sends as your domain, fix the records, and move DMARC to enforcement in stages.

Will a firewall block real customers?

New rules start in log-only mode so we can see what they would catch, and we tune them before switching them on.

How is this priced?

It depends on the number of domains, traffic, and services you need, so we quote after a short call. Platform usage is either billed to an account you own or included in our quote.

Bring Your Site Closer to Customers

We will audit your DNS, email, and delivery and show you what to fix first.

Contact Sheernox →