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IIS hosting support for the servers your team can’t touch

We look after websites and applications hosted on IIS and Windows Server: monthly patching, uptime and certificate monitoring, application pool and log hygiene, and planned moves off Windows Server versions that are leaving support.

Example monthly report · illustrativeAll systems normal
99.98%uptime · 12 mo
42patches this month
11 minavg. first response
5systems looked after
RESPONSE TIME · LAST 30 DAYSSLA 30 MIN
  • corporate-site.comIIS 10 · .NET Framework 4.899.99%
  • investors.corporate-site.comSitecore 10.3 · Azure100%
  • careers portalJava 17 · Tomcat · Oracle99.97%
  • intranetSharePoint 2019 · on-premise99.95%
  • partner API.NET 10 · SQL Server99.99%
Why it matters now

IIS itself rarely fails. What fails is everything around it: an expired certificate, an application pool identity whose password changed, a disk filled by logs, or a server that quietly stopped receiving security updates because its Windows Server version reached end of support.

Many corporate estates still run on Windows Server 2012 R2 or 2016. The final paid security updates for 2012 R2 end in October 2026, and 2016 leaves extended support in January 2027. We map every server against those dates, keep them patched in the meantime and move sites to supported versions or to Azure App Service on a plan you agree.

Signs you need this

  • Some servers still run Windows Server 2012 R2 or 2016
  • Nobody is sure when patches were last applied
  • Certificate renewals are done by hand
  • The person who built the servers has left
Request an audit →

Windows Server support dates (IIS is supported for the life of the Windows Server version it ships with)

Windows Server support dates (IIS is supported for the life of the Windows Server version it ships with)
VersionSupportStatus
Windows Server 2012 / 2012 R2 (IIS 8 / 8.5)Extended support ended 10 October 2023. Final paid ESU year ends 13 October 2026.End of life
Windows Server 2016 (IIS 10)Extended support ends 12 January 2027. Paid ESUs offered after that.Ending soon
Windows Server 2019 (IIS 10)Extended support ends 9 January 2029.Supported
Windows Server 2022 (IIS 10)Extended support ends 14 October 2031.Supported

Dates checked 10 October 2026 against: Microsoft lifecycle: Windows Server 2012 R2, Microsoft lifecycle: Windows Server 2016, Microsoft lifecycle: Windows Server 2019, Microsoft lifecycle: Windows Server 2022.

What we do every month

01

Monthly patching

Windows, IIS, .NET Framework and runtime updates tested on staging, then applied in an agreed window.

02

Certificates and bindings

SSL expiry monitored and renewals automated where possible, with bindings checked after every change.

03

Application pools

Identities, recycling and crash alerts reviewed, so a changed password never takes a site down at 2am.

04

Logs and disks

Log rotation and disk-space alerts, so a full disk is a ticket, not an outage.

05

Hardening

TLS settings, security headers, request filtering and unused modules removed, documented for your auditors.

06

Upgrade path

A dated plan to move each site to a supported Windows Server version or to Azure App Service.

Patching cadence

Critical security updatesWithin the SLA response time for your tier
Windows and .NET cumulative updatesMonthly, after Patch Tuesday, tested on staging first
Certificate expiry checksDaily, with alerts 30, 14 and 3 days out
Backup restore testQuarterly, with the result in your report
Configuration reviewQuarterly

Security posture

  • Named-user access only, through your VPN, jump host or SSO
  • Credentials stored in a vault, never in email or tickets
  • Every change logged against a ticket, with a rollback step
  • NDA and data processing agreement before any access
  • Findings from your penetration tests fixed and documented

Service levels

Written into the contract. Mix tiers across your estate according to how critical each system is.

Example service levels by support tier
EssentialBusinessMission-critical
Critical (site down)4 hours1 hour15 minutes
High (major feature broken)Next business day4 hours1 hour
Normal3 business days1 business day4 hours
Cover hoursMon–Fri, business hours7am–10pm, 7 days24/7/365
Uptime target99.5%99.9%99.95%
Named engineers12Dedicated team

How the takeover works

  1. Weeks 1–2

    Audit

    Read-only access under NDA. Versions, risks, costs and a quote.

  2. Weeks 3–4

    Knowledge transfer

    Runbooks, credentials vault and handover sessions with your current team or vendor.

  3. Month 2

    Stabilise

    Urgent patches, monitoring and backups in place before anything else changes.

  4. Ongoing

    Run & improve

    SLA-backed support, planned upgrades and a monthly report.

Free estate audit · 2 weeks

Get a written report on your IIS hosting estate.

Read-only access, under NDA. Versions, end-of-support dates, security findings and a monthly quote. Keep the report either way.

How many sites and apps?
Main technology
Maintained today by

We reply with an NDA and an access checklist.

IIS hosting: questions, answered

Can you work in our data centre rather than the cloud?
Yes. We work through your VPN or jump hosts with named accounts, inside your change-management process.
What if a server cannot be upgraded straight away?
We isolate and harden it, monitor it closely and agree a dated replacement plan, so the risk is known and time-limited.
Do you move sites to Azure?
Where it fits. Many IIS sites move cleanly to Azure App Service; others are better on a new Windows Server VM first. We recommend per site after the audit.