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Free tool · SEO

SERP simulator: your page on Google and social

Read a live page or type the title and description by hand. This SERP simulator shows you the Google result on desktop and mobile, the card you get when sharing the link and what’s worth changing.

Or type it in by hand

Free · No sign-up · What you type never leaves your browser

01

How to use the SERP simulator

  1. 01

    Read a page or type it in

    Paste the address of a live page and we read its title, its description and its social tags. Or type them by hand before you publish.

  2. 02

    Adjust until it fits

    The counters measure each text in pixels, the way Google does. Change the words and the preview updates instantly.

  3. 03

    Check the social card

    See how the link looks when shared on Facebook, X, LinkedIn and WhatsApp, and the image warnings.

02

What the SERP simulator shows you

Google

On desktop and mobile

The result as Google renders it, with the site name, the path, the title and the description, truncated by pixels. So you see where the ellipsis falls on each screen.

Social

When the link is shared

The card on Facebook, X, LinkedIn and WhatsApp, with the image, title and description taken from its Open Graph and X tags. If one is missing, we tell you what each network will use instead.

Warnings

What’s worth changing

Title or description too long or too short, an image that’s missing, too small or about to be cropped, and noindex if the page can’t be indexed.

03

How long should a title tag and meta description be

Google doesn’t truncate by character count but by width. An “M” takes up almost three times as much space as an “i”, so two 60-character titles may or may not fit. As a guide on desktop:

  • Title: about 580 pixels. Between 30 and 60 characters usually fits. Under 30, you’re wasting room to explain the page.
  • Meta description: about 920 pixels, two lines on desktop, between 70 and 160 characters. On mobile, fewer words fit per line.

How to write a good title

  • Put what people search for first and the brand last: “Web Design for Small Businesses in Barcelona · Example Studio”.
  • A different title on every page. If they all start the same way, they look like the same page on Google.
  • No repeating words to pad it out: it doesn’t help, and Google may rewrite the title.

Why Google sometimes rewrites your title or description

Google may show a different title if it thinks yours doesn’t describe the page well: if it’s very long, repeats words or is the same on many pages. It explains this in its documentation on title links. It happens more often with the description: Google picks the snippet of the page that best answers each search. A clear, unique title that fits makes rewrites less likely.

04

Why this SERP simulator measures in pixels, not characters

Many SERP simulators count characters and give you a fixed number (55, 60, 70). They warn you too late or too early, depending on the letters you use. This one measures each text with the font and size Google uses on desktop, and truncates at a whole word with “...”, as the search engine does.

It also reads the live page: you don’t have to copy the title and description, and you see the Google preview and the card on four social networks side by side, with the image’s real dimensions. What you type by hand never leaves your browser.

See this preview on any page as you browse, along with the rest of its SEO.

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05

Social media image: sizes and cache

Facebook, LinkedIn and WhatsApp

1200 × 630 px

1.91:1 ratio. Under 200 px wide, many networks don’t show it or show it as a thumbnail. Use a full URL, with https://.

X

Large 2:1 or square

With twitter:card = summary_large_image, the large image (2:1). With summary, a square thumbnail next to the text.

Cache

If you change the image and it doesn’t update

Networks cache the card. Ask them to read it again with Facebook’s Sharing Debugger or LinkedIn’s Post Inspector.

Smart Design Inspector

This and much more, on any website

The Chrome extension does it on the page you have open, with no copying and pasting: tech stack, SEO, fonts, colors and CSS, and it sees the page the way your browser renders it (here we only read the HTML the server sends).

07

Frequently asked questions

More questions →
What is a SERP simulator?

A tool that shows how a page will look in Google’s results (the SERP): the title, the address and the description, truncated the way Google truncates them. It helps you fine-tune the title and meta description before you publish.

How many characters should a title tag have?

Between 30 and 60 characters usually works, but Google truncates by width: about 580 pixels on desktop. This tool measures the pixels and warns you if it runs over.

And the meta description?

Between 70 and 160 characters, about 920 pixels on desktop. Google may use other text from the page if it thinks it answers the search better.

Why does Google change my title?

It may show a different title if yours is very long, repeats words or is the same on many pages. A clear, unique title that fits makes it less likely to be changed.

Why does my link show no image on WhatsApp or LinkedIn?

Usually because the og:image tag is missing, because the image URL is relative or because the image is too small. Read your page above and the tool tells you which of the three it is.

Do I need to publish the page to test it?

No. You can type the title, description and image by hand and see how they would look before you publish.

Is it free?

Yes, free and with no sign-up. It’s a sample of the Smart Design Inspector extension, which shows this preview on the page you have open.

Waitlist

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Smart Design Inspector is in development. Leave your email and we’ll let you know the day it goes live on the Chrome Web Store, with the 7 Pro features free in early access.

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What you do (optional)

Start with your competitors’ websites

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