See what changed on your site first.
Semust scans your key pages every day and puts every title, meta, canonical, noindex, H1, status-code and internal-link change in front of you as a word-level before→after diff. Catch an accidental noindex the morning after a deploy — before your rankings slip.
Website Change Detector
2
Critical
3
Warning
9
Info
14
Total
| Date | URL | Type | Change | |
|---|---|---|---|---|
| Today 03:12 | /kampanyalar/yaz-indirimi | Robots meta | index, follow→noindex, follow | |
| Today 03:12 | /urun/deri-canta | Status code | 200→404 | |
| Today 03:12 | /blog/seo-rehberi | Canonical | /blog/seo-guide→/blog/old-content | |
| Today 03:12 | / | Title | Home | Brand→Home - 20% Off | Brand | |
| Yesterday 03:10 | /urun/keten-gomlek | Meta description | Quality linen shirts at great prices.→Quality linen shirts, 20% off, free shipping. | |
| Yesterday 03:10 | /hakkimizda | H1 | About Us→Who We Are | |
| 2 days ago | / | Internal links | +3 / −1 | |
| 2 days ago | /blog/kis-koleksiyonu | New URL | New page |
Live demo — click the tabs to explore changes, the diff and watched pages.
Catches these SEO changes
Catch an accidental noindex
If a deploy silently adds noindex, robots or a canonical, Semust flags it the next morning — before your pages fall out of the index.
SEO changes, not pixels
It watches the fields that move rankings — title, meta, H1, canonical, hreflang, status code — not a pixel diff. Only what matters.
See exactly what changed
Every change arrives as a word-level before→after diff. No guessing — you read the change exactly as it happened.
17+
change types watched
Daily
automatic scans (03:00)
SEO-focused
fields that move rankings
Word-level
before → after diff
Don't let a small change become a big SEO loss.
Every SEO change on your site is caught automatically and shown as a before→after diff. Nothing breaks without you knowing.
Catch an accidental noindex before it drops you.
If a deploy silently adds noindex, robots or a canonical, your pages fall out of Google — usually unnoticed. Semust flags these critical changes on the next day's scan and puts them in front of you.
Never miss a title or meta rewrite.
When someone edits a product title or meta description — sometimes by accident — your click-through rate takes a hit. Semust shows exactly which page changed, when, and how.
Başlık
Canonical
Know precisely what changed, down to the word.
No guessing what changed. Semust compares the old and new text and shows additions in green and removals in red, word by word.
Meta açıklama
Kaliteliketengömlekleruygunfiyatlarla.%20indirimle,ücretsizkargo.
Catch 404s and redirects early.
When a working page suddenly returns a 404 or a new redirect appears, traffic loss starts immediately. Semust detects status-code and redirect changes and tells you.
Nothing shifts in your site structure without you knowing.
New or removed URLs, internal-link changes, sitemap and robots.txt updates — everything that affects your site's structure, collected in one feed.
Scans daily, automatically — so you don't have to.
Semust scans your key pages every day at 03:00 and your sitemap and key pages weekly. When a scan finds changes you get an in-app notification; run one by hand anytime with 'Scan now'.
Competitor page tracking — coming soon.
Soon you'll be able to watch SEO and content changes on your competitors' pages in the same feed. For now, focus on your own site — competitor tracking is on the way.
Set up in three steps.
No technical know-how required.
Add your pages
Add the key pages you want to watch, or let Semust discover them from your sitemap. Choose the monitoring mode: SEO only or SEO + content.
Let it scan
Semust scans your pages every day at 03:00. The first scan sets a baseline, and after that only real changes are flagged.
Notice when it changes
When something changes, you see it in one feed as a before→after diff, and you get an in-app notification when the scan completes.
Not a visual watcher — SEO-focused.
Tools like Visualping ask 'did the image change?'; Semust looks at the fields that move your rankings.
17+ change types watched, in one panel.
Every change that could affect your site's SEO — caught automatically and shown as a before→after diff.
Meta & Tags
Title tag
Every change to the page title tag.
Meta description
Meta description changes — they affect click-through rate.
Canonical
Canonical tag changes and drift.
Robots / noindex
noindex, nofollow and robots-meta changes — critical.
Structured Data & Status
Schema (JSON-LD)
Structured data added, removed or broken.
Open Graph
Social tag changes like og:title and og:image.
Hreflang
Changes to language / region (hreflang) tags.
Status code
HTTP status-code changes (200 → 404, 500, etc.).
Content
H1
Changes to the page's H1 heading.
Word count
A notable change in content volume (word count).
Content change
A content hash showing the page's content changed.
Redirect
New 301 / 302 redirects and chains.
Site Structure & Links
New URL
New pages added to your site.
Removed URL
Pages taken down or no longer reachable.
Internal links
Internal links added to and removed from pages.
Sitemap
URLs added to and removed from your sitemap.
Scanning & Notification
robots.txt
Rule changes in your robots.txt file.
Word-level diff
An old → new text diff for every change.
Daily & weekly scans
Automatic daily and weekly scans, plus a manual option.
In-app notification
An in-app notification when a scan finds changes.
One platform,Organic success stories:
Batuhan Durmaz
SEO Specialist
SEMUST is a powerful tool for SEO professionals. It provides valuable data in a simple and easy‑to‑understand format, making it a great choice for both local and global projects. I use it for keyword analysis, Google Search Console data, ranking tracking, and content creation. I'm very satisfied with it.
Selen Çetin
SEO Specialist
I first came across Semust on LinkedIn, back when it was just starting to gain attention. Curious, I decided to give it a try—and it’s now become one of my favorite tools. What I appreciate most is how it handles many tasks that I used to perform manually with a single click, which makes my job significantly easier. Seeing how quickly it has evolved since the first time I used it also inspires confidence.
Aykut Özcan
SEO Director – Digital UP
At Digital UP SEO Agency, we rely heavily on the analysis and reporting tools Semust provides throughout our SEO workflows. From keyword tracking and competitor analysis to site‑health scans and backlink audits, it brings both speed and depth to many critical areas. Thanks to the comprehensive, data‑driven insights it offers, we consistently boost our clients' search‑engine performance. Semust is a powerful partner on our agency's growth journey.
Frequently asked questions
Monitor website changes for SEO
Website Change Detector is a change-detection tool that automatically monitors the SEO-critical pages of your website. It catches every change in the fields that affect your rankings — title, meta description, canonical, noindex, H1, status code, redirects and internal links — and shows it as a word-level before → after diff.
Prevent accidental SEO regressions
The most insidious SEO mistakes happen silently. A developer accidentally adds a noindex to a page during a deploy, a theme update breaks canonicals, or an edit rewrites a title tag — and you usually notice weeks later, when traffic drops. Website Change Detector scans your key pages every day and flags these critical changes the next morning. Example: if your highest-traffic category page accidentally gets a noindex, you're alerted before the page falls out of the index.
Not visual tracking — SEO-focused change detection
General-purpose tools like Visualping or Distill check whether a page's image changed; even a tiny visual shift alerts you, but they can miss the technical changes that actually affect your rankings. Website Change Detector does the opposite: it looks at SEO fields, not pixels — title, meta description, H1, canonical, hreflang, schema, status code, redirects, internal links, sitemap and robots.txt. Every change is prioritized as critical, warning or info and presented as an old → new text diff, so you never have to interpret 'what changed?'.
Together with Index Monitor: what changed, and why
Website Change Detector works alongside Semust's Google Index Monitor. Index Monitor tells you whether a page is in Google's index; Change Detector shows exactly what changed on that page. When a page drops out of the index, the cause is often a change made to the page — an accidental noindex, a broken canonical, or content largely removed. Using the two together, you see both the problem (dropping out of the index) and its cause (the change on the page) in one place.
More organic traffic
- 14-day free trial
- No setup required
- Search Console integration