Sitemap · SEO Metadata · Server Uptime

We catch the problem
before your client does.

Deltio checks your sitemaps and SEO metadata every day and watches your server uptime around the clock — and alerts you as soon as something changes.

No credit card required · Setup in 2 minutes · Cancel anytime

blog.example.com Sitemap change — /blog/seo-guide removed from sitemap.xml 3 min ago
shop.example.com Server down — 503 response, site unreachable 04:17 AM
store.example.com Title tag restored — /products/running-shoes back to normal yesterday 14:22
agency-client.com Meta description missing on 12 pages after last deploy 2 hours ago
company.io Sitemap change — /en/about removed from sitemap.xml 1 hour ago
shop.example.com Site back online — response 200, downtime was 4h 13m this morning
startup.co H1 tag missing on 8 pages after CMS template update 35 min ago
agency.io Canonical URL changed — /case-studies/client-a now points to / 6 hours ago
blog.example.com Sitemap change — /blog/seo-guide removed from sitemap.xml 3 min ago
shop.example.com Server down — 503 response, site unreachable 04:17 AM
store.example.com Title tag restored — /products/running-shoes back to normal yesterday 14:22
agency-client.com Meta description missing on 12 pages after last deploy 2 hours ago
company.io Sitemap change — /en/about removed from sitemap.xml 1 hour ago
shop.example.com Site back online — response 200, downtime was 4h 13m this morning
startup.co H1 tag missing on 8 pages after CMS template update 35 min ago
agency.io Canonical URL changed — /case-studies/client-a now points to / 6 hours ago
Sitemap monitoring + SEO metadata scan + Server uptime

The only tool that monitors sitemaps, SEO metadata and server uptime in one dashboard — without three separate subscriptions.

Instead of paying £55+/month across 3 separate tools ⚡ All 3. One price.

Three scenarios you've lived through.
Or will.

🚀

The dev deployed on Friday.

Fourteen product pages silently vanished from the sitemap. Your client saw the traffic drop Monday morning — before you did.

URL removed from sitemap · undetected for 72h
🛠️

Someone edited a template.

80 page titles became "undefined". Google recrawled them over the weekend. You found out when rankings collapsed.

Title tag broken across 80 pages · recrawled by Google
🔴

The server went down at 3:47 AM.

Four hours of downtime. No notifications. No alerts. You were asleep. The client was not.

Site unreachable · 503 · downtime 4h 13m

With Deltio, you'd have been the first to know.

Up and running in 2 minutes.

No installs. No configuration files. No desktop app. Just add your domain.

01

Add your site

Enter your domain. Deltio automatically discovers your sitemaps and starts monitoring. No configuration needed.

Add a new site

example.com
Add →
Sitemap discovered — 342 URLs indexed
02

Deltio watches

Every URL added or removed from your sitemap. Every meta tag change. Every server status check. All tracked automatically.

Monitoring ● Live
Sitemap URLs
342 +3
Title tags OK
338 / 342 4 missing
Server uptime
99.8% 30d avg
Canonical URLs
342 / 342 all valid
03

You get the alert

Email or Slack — exactly what changed, on which URL, and when. The alert arrives before your client even opens their browser.

Deltio

to: you@example.com

just now

🚨 Sitemap change detected — example.com

Deltio detected changes in your sitemap for shop.example.com

− /products/old-model removed

+ /products/new-model-2026 added

+ /blog/launch-announcement added

Detected at 09:14 AM · View full report →

Start monitoring free →

No credit card required

Deltio never sleeps.

Three layers of monitoring, one clean dashboard. No plugins. No agents to install.

Sitemap monitoring

Every URL, every change.

  • Detects URLs added or removed from sitemap.xml
  • Monitors nested sitemap indexes automatically
  • Daily snapshots with 7-version history
  • Change timeline with exact timestamps

SEO metadata scan

Every tag that matters.

  • Title tag — missing, too short, too long
  • Meta description — presence and length
  • H1 tag — missing or multiple
  • Canonical URL — missing or invalid
  • lang attribute and hreflang for international sites

Server & uptime

Know before your users do.

  • HTTP status code monitoring (200, 301, 403, 503…)
  • Response time tracking
  • 24-hour uptime history per site
  • Confirmed downtime alerts — no false alarms
  • SSL certificate expiry alerts (30-day warning)
  • Domain expiry monitoring
  • robots.txt change detection

The alert you always wished you'd received sooner.

Deltio sends alerts where you already work — no new tools to check, no dashboards to remember.

✉️

Email

Delivered to your inbox within minutes

Instant
From: Deltio <alerts@deltio.io>
Subject:🚨 Sitemap change — shop.example.com

Hi,

Deltio detected changes in your sitemap for shop.example.com on Monday at 09:14 AM UTC.

− /products/old-model removed

+ /products/new-model-2026 added

+ /blog/launch-announcement added

3 changes · View full report →

Slack

Posted to any channel you choose

Instant
# seo-alerts
D
Deltio Today at 9:14 AM

🚨 Server down — shop.example.com

Status:503 Service Unavailable
Since:04:17 AM UTC
Duration:4h 13m and counting
View in Deltio →

Trusted by SEOs, web developers, agencies and clients who hate surprises.

"I found out that a client accidentally removed 40 product URLs from the sitemap. Deltio flagged it within a day. The client didn't even know it happened."

MR

Marco R.

SEO Consultant · Freelance

"We manage 15 e-commerce sites. Before Deltio, broken meta tags would stay undetected for weeks. Now I have a Slack message before I've finished my morning coffee."

SL

Sophie L.

Head of SEO · Digital Agency

"The sitemap monitoring alone is worth it. It's like having a junior SEO checking every site, every day, without forgetting. Pays for itself with one incident caught."

JT

James T.

Marketing Director · SaaS Company

Simple, transparent pricing.

No per-seat fees. No crawl credits. One price, full access.

Starter

For freelancers and small consultancies.

£ 20 / mo

billed annually

Start with Starter
  • Up to 50 sites
  • Up to 5,000 URLs monitored
  • 3 manual SEO scans / day
  • Daily sitemap snapshots
  • Email + Slack alerts
  • Server uptime monitoring
  • SSL & domain expiry alerts
  • robots.txt monitoring
  • Maintenance page detection

Professional

For growing agencies managing multiple clients.

£ 41 / mo

billed annually

Start with Professional
  • Up to 200 sites
  • Up to 20,000 URLs monitored
  • 10 manual SEO scans / day
  • Daily sitemap snapshots
  • Email + Slack alerts
  • Server uptime monitoring
  • SSL & domain expiry alerts
  • robots.txt monitoring
  • Maintenance page detection
  • CSV data export

Enterprise

For large teams and enterprise operations.

£ 99 / mo

billed annually

Start with Enterprise
  • Up to 500 sites
  • Up to 50,000 URLs monitored
  • Unlimited SEO scans
  • Daily sitemap snapshots
  • Email + Slack alerts
  • Server uptime monitoring
  • SSL & domain expiry alerts
  • robots.txt monitoring
  • Maintenance page detection
  • CSV data export
  • Priority support

All plans include a free trial. No credit card required to start. · VAT may apply based on your location.

Questions we get a lot.

How is Deltio different from Screaming Frog or Ahrefs?
Screaming Frog is a desktop crawler you run manually. Ahrefs crawls your site periodically. Deltio checks your sitemap every day — it catches URLs added or removed and automatically re-scans the affected pages for SEO issues — and monitors server uptime around the clock. It's not a replacement for your existing SEO tools; it's the watchdog that keeps an eye on things in between.
Does it work with international and multilingual sites?
Yes. Deltio checks lang attributes, hreflang tags, and canonical URLs — all critical for international SEO. If a hreflang points to the wrong locale or disappears after a deploy, Deltio flags it immediately.
How many sitemaps can I add per site?
As many as you need. Deltio supports nested sitemap indexes, so if your site uses a sitemap index pointing to multiple sitemap files (by type, language, or date), it discovers and monitors all of them automatically.
Is my data safe? Does it pass through your servers?
Deltio fetches your publicly accessible sitemap and page metadata — the same data any search engine bot would read. We never store your page content. Your Deltio account data is stored securely on Supabase (EU region) and we do not share data with third parties.
Can I use Deltio for client sites without sharing access?
Yes. You add the domain to your Deltio account — no client access required. Alerts go to you (and optionally to a Slack channel you configure). Clients never need to log in unless you want them to.
What happens if I exceed my plan's site limit?
You'll see an upgrade prompt in the dashboard. Existing monitoring continues without interruption — nothing breaks. You can upgrade at any time and your data carries over seamlessly.
Your site is changing right now.

Be the first to know
every single time.

Add your first site in 2 minutes. Deltio starts watching immediately. No installs. No configuration. No credit card.

Start monitoring free
✓ Free trial included✓ Cancel anytime✓ UK-based company