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thesaurus.com website review
Visit site (opens in a new tab)Reviewed 12 October 202640 issues · 86 checks
This review found 40 issues worth fixing on thesaurus.com, 16 of them high impact, across 86 checks. The most urgent: reduce unused JavaScript. Your full playbook turns these into prioritised fixes alongside reviews, competitors and channels.
- Homepage
- Phone render
- Links and pages
- Google PageSpeed
Google PageSpeed Insights (opens in a new tab), mobile
Site score
72CClosest competitors among reviewed websites
Compare side by sideShow as table
| Date | Real-visitor load time (LCP) |
|---|---|
| Apr 18, 2026 | 1.4 s |
| Apr 25, 2026 | 1.4 s |
| May 2, 2026 | 1.4 s |
| May 9, 2026 | 1.4 s |
| May 16, 2026 | 1.4 s |
| May 23, 2026 | 1.4 s |
| May 30, 2026 | 1.4 s |
| Jun 6, 2026 | 1.5 s |
| Jun 13, 2026 | 1.5 s |
| Jun 20, 2026 | 1.5 s |
| Jun 27, 2026 | 1.5 s |
| Jul 4, 2026 | 1.6 s |
| Jul 11, 2026 | 1.6 s |
| Jul 18, 2026 | 1.6 s |
| Jul 25, 2026 | 1.6 s |
| Aug 1, 2026 | 1.6 s |
| Aug 8, 2026 | 1.6 s |
| Aug 15, 2026 | 1.6 s |
| Aug 22, 2026 | 1.6 s |
| Aug 29, 2026 | 1.6 s |
| Sep 5, 2026 | 1.6 s |
| Sep 12, 2026 | 1.6 s |
| Sep 19, 2026 | 1.6 s |
| Sep 26, 2026 | 1.6 s |
| Oct 3, 2026 | 1.6 s |
Show as table
| Date | Real-visitor tap response (INP) |
|---|---|
| Apr 18, 2026 | 146 ms |
| Apr 25, 2026 | 145 ms |
| May 2, 2026 | 145 ms |
| May 9, 2026 | 144 ms |
| May 16, 2026 | 143 ms |
| May 23, 2026 | 139 ms |
| May 30, 2026 | 137 ms |
| Jun 6, 2026 | 135 ms |
| Jun 13, 2026 | 132 ms |
| Jun 20, 2026 | 135 ms |
| Jun 27, 2026 | 138 ms |
| Jul 4, 2026 | 142 ms |
| Jul 11, 2026 | 145 ms |
| Jul 18, 2026 | 146 ms |
| Jul 25, 2026 | 146 ms |
| Aug 1, 2026 | 148 ms |
| Aug 8, 2026 | 153 ms |
| Aug 15, 2026 | 156 ms |
| Aug 22, 2026 | 159 ms |
| Aug 29, 2026 | 160 ms |
| Sep 5, 2026 | 160 ms |
| Sep 12, 2026 | 158 ms |
| Sep 19, 2026 | 159 ms |
| Sep 26, 2026 | 161 ms |
| Oct 3, 2026 | 164 ms |
Chrome UX Report (opens in a new tab): real Chrome visitors over rolling 28-day periods.
One score from every part of this review. How it works
How it loaded on a phone
1.1 s
2.1 s
3.2 s
4.2 s
5.3 s
6.3 s
7.4 s
8.4 s
Speed
Reduce unused JavaScript
6.7 s · 2.0 MBAbout 2.0 MB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 6.7 s faster on a phone.
Use efficient cache lifetimes
5.5 s · 2.0 MB167 files are served with short cache lifetimes, so returning visitors download them again (2.0 MB).
Main-thread work: 12.8 s
A phone's processor spends 12.8 s on main-thread work while loading, 7.3 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.
script.ac adds 1.0 s
1.0 sscript.ac costs a phone 1.0 s of main-thread work and 97 KiB of downloads while your page loads. That alone is enough to make taps feel slow. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.
Mobile performance score: 34
34/100Your mobile performance score is 34. Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.
8 third-party services on the page
8 third-party services load with your homepage (script.ac, Rubicon Project and anyclip.com and others), adding 2.9 MB and 2.8 s of main-thread time.
Render-blocking requests
900 ms3 files block the first paint until they finish downloading. Deferring or inlining them could save about 900 ms.
anyclip.com adds 369 ms
369 msanyclip.com costs a phone 369 ms of main-thread work and 777 KiB of downloads while your page loads. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.
Rubicon Project adds 373 ms
373 msRubicon Project costs a phone 373 ms of main-thread work and 132 KiB of downloads while your page loads. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.
20 long tasks on the main thread
20 long tasks block the main thread while loading, the longest for 360 ms. During a long task the page ignores taps.
Improve image delivery
300 ms · 50 KiB2 images could be 50 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 300 ms faster on a phone.
Google/Doubleclick Ads adds 207 ms
207 msGoogle/Doubleclick Ads costs a phone 207 ms of main-thread work and 443 KiB of downloads while your page loads. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.
Amazon Ads adds 210 ms
210 msAmazon Ads costs a phone 210 ms of main-thread work and 343 KiB of downloads while your page loads. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.
Legacy JavaScript
150 ms · 73 KiBPolyfills for old browsers add 73 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 150 ms faster on a phone.
Reduce unused CSS
51 KiBAbout 51 KiB of CSS is downloaded but never applied on this page.
Minify JavaScript
18 KiB18 KiB could be saved by minifying JavaScript.
Chained critical requests
Critical files load one after another instead of in parallel (3 chains). Preconnecting to key origins and preloading the hero image shortens the chain.
1 checks passed
Server response: 3 ms
3 msYour server sent the HTML in 3 ms, well inside Google's 600 ms guideline.
Core Web Vitals
Fails Core Web Vitals for real visitors
Real Chrome users on phones do not pass Google's Core Web Vitals on this page (28-day field data from the Chrome UX Report (opens in a new tab)). Google uses this in ranking.
Largest Contentful Paint: 22.2 s
22.2 sYour largest element takes 22.2 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the element shown below.
Speed Index: 15.6 s
15.6 sVisually, the page fills in at 15.6 s (Speed Index). Good is under 3.4 s.
Time to Interactive: 58.5 s
58.5 sThe page becomes fully interactive after 58.5 s. Good is under 3.8 s.
Total Blocking Time: 1.8 s
1.8 sScripts block taps and scrolling for 1.8 s in total while the page loads. Good is under 200 ms.
Real-user INP: 229 ms
229 msReal visitors wait 229 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.
First Contentful Paint: 2.6 s
2.6 sThe first text or image appears after 2.6 s on a phone. Good is under 1.8 s.
2 images without width and height
2 images have no width and height attributes, so the layout jumps as each one loads.
Tap response (INP) got 12% slower for real visitors
+12%Over the last 25 four-week periods to 2026-10-03, real Chrome visitors' tap response (inp) went from 146 ms to 164 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).
Largest content (LCP) got 13% slower for real visitors
+13%Over the last 25 four-week periods to 2026-10-03, real Chrome visitors' largest content (lcp) went from 1.4 s to 1.6 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).
5 checks passed
Real-user LCP: 1.4 s
1.4 sReal visitors wait 1.4 s for the largest content to appear (75th percentile). Good is under 2.5 s.
Real-user CLS: 0.02
0.02For real visitors the layout shifts by 0.02 (75th percentile). Good is under 0.1.
Real-user FCP: 1.2 s
1.2 sReal visitors see the first content after 1.2 s (75th percentile). Good is under 1.8 s.
Real-user TTFB: 411 ms
411 msReal visitors wait 411 ms for your server to start answering (75th percentile). Good is under 800 ms.
Cumulative Layout Shift: 0.001
0.001The layout barely moves while loading (CLS 0.001, good is under 0.1).
Images and page weight
Page weight: 6.6 MB in 1,350 requests
6.6 MBYour homepage downloads 6.6 MB in 1,350 requests on a phone: scripts 4.1 MB (120), other files 1,024 KiB (541) and media 917 KiB (7). Under 2 MB keeps phones on slow connections fast.
1 image in older formats
1 image (43 KiB) is JPEG, PNG or GIF. The same pictures as WebP or AVIF are usually much smaller at the same quality, and every current browser shows them.
About 1.9 g of CO₂ per visit
1.87 gBy the Sustainable Web Design model, a visit to your homepage emits about 1.87 g of CO₂e: 224.5 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.
2 checks passed
Images load when needed
Images below the first screen wait until the visitor scrolls to them.
Images are sized for phones
No image is downloaded at more than three times the size it is drawn on a phone.
Accessibility
Frames without titles
6 frames have no title, so screen-reader users cannot tell what they contain.
1 text element with low contrast
1 text element doesn't have enough contrast against the background to read easily, especially outdoors on a phone.
1 image without alt text
1 image has no alt text, which hurts accessibility and image search.
8 links without text
8 visible links have no text or label, so screen readers cannot say where they go.
2 form fields without a label
2 form fields have no label, so screen readers announce an empty box and autofill guesses.
1 checks passed
49 automated accessibility rules passed
axe-core 4.13.0, the open-source engine behind most accessibility testing tools, ran 53 WCAG 2.2 A/AA and best-practice rules on the phone render: 49 passed and 4 failed. 4 mores need a person to judge. Automated rules catch about a third of accessibility problems; the rest need manual testing.
SEO
No structured data
No structured data (JSON-LD), so Google can't show rich results such as your logo, ratings or FAQs.
No social preview image
No Open Graph image (also missing: og:title, og:description), so links shared on LinkedIn, Slack or Facebook show no preview picture.
No X (Twitter) card tag
No twitter:card tag. X falls back to Open Graph, which is incomplete here.
16 internal links, 40 external
The homepage links to 16 pages on thesaurus.com and 40 external pages.
6 checks passed
Meta description: 156 characters
Your meta description is 156 characters: “Thesaurus.com is the world's largest and most trusted online thesaurus for 25+ years. Join millions of people and grow …”.
One H1 headline
Your main headline reads: “Thesaurus.com”.
Title: 46 characters
Your title is a healthy 46 characters: “Synonyms and Antonyms of Words | Thesaurus.com”.
Canonical URL set
The canonical URL is https://www.thesaurus.com/.
robots.txt in place
robots.txt is in place and points crawlers to your sitemap.
XML sitemap found
Your XML sitemap is reachable at https://www.thesaurus.com/sitemap_index.xml.
AI search readiness
No Organization structured data
There is no Organization (or LocalBusiness) JSON-LD, so search engines and AI assistants have no machine-readable facts about who runs the site: its name, logo, profiles and contact details.
No llms.txt
There is no /llms.txt, a short Markdown guide to your key pages for AI tools (llmstxt.org). It is optional and few AI tools read it yet, so treat it as a cheap extra.
Opted out of AI training for 3 crawlers
robots.txt blocks GPTBot, Applebot-Extended and CCBot, which collect pages to train models. That's a legitimate choice and doesn't by itself stop the site appearing in AI answers, which the crawlers above handle.
2 checks passed
AI answer engines may read the site
Your robots.txt lets the crawlers behind ChatGPT search, Claude and Perplexity read the site and cite it in answers.
Text is in the HTML
Your server sends the page's text in the HTML (300 words), so crawlers that don't run JavaScript still read it.
Other pages
2 pages without a meta description
/list and /terms-and-privacy have no meta description, so Google writes the search snippet from whatever text it finds.
12 internal pages checked
We fetched 12 pages linked from your homepage and read each the way a search engine does.
6 checks passed
Linked pages load
All 12 pages we checked loaded without an error.
Canonical URLs point to themselves
No page we checked hands its ranking to a different URL.
Titles are unique
Every page we checked has its own title.
Every page has an H1
Each page we checked has a main headline.
No linked page is hidden from search
None of the pages we checked carries a noindex tag.
Every page has a title
All 12 pages that loaded have a <title>.
Best practices
1 broken image
1 image failed to load on a phone, for example https://partner.mediawallahscript.com/?account_id=1009&partner_id=0234c510&uid=&custom=&tag_format=img&tag_action=sync.
37 third-party cookies
37 third-party cookies are set on load; browsers are restricting these, so whatever relies on them breaks.
Deprecated browser APIs
The page uses 1 deprecated browser API that will stop working in future browsers (“The Topics API is deprecated and will be removed in a future release.”).
5 JavaScript errors while loading
5 errors were logged to the browser console while the page loaded, for example “Failed to load resource: net::ERR_FAILED”.
Browser-reported issues
Chrome logged issues while loading the page (“Mixed content”).
2 checks passed
Tap targets are thumb-sized
18 of 21 tappable elements near the top are at least 24 px.
Mobile viewport set
The page declares a mobile viewport.
Content and conversion
No call to action on the first screen
On a phone, there is no call to action on the first screen: visitors have to scroll to find out what to do next.
Thin social proof
Social proof on the homepage: 10 customer or partner logos. Pairing it with named testimonials or customer logos makes it far more convincing.
No direct contact details
No phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.
Only about 213 words
The homepage has only about 213 words of visible text; thin pages give Google and first-time buyers little to go on.
No risk reducer
No guarantee or risk reducer (money-back, free trial, no credit card) is mentioned, which is often what tips a hesitant visitor.
3 checks passed
1 call to action
The homepage has 1 call to action, for example “Contact us”.
1 short form
A short form (1 field at most) is right on the homepage.
Analytics in place
Analytics detected: Google Tag Manager.
Privacy and tracking
9 trackers load before any consent
9Before a visitor clicks anything, the page loads Amazon Ads, Criteo, Google Ads, Google Analytics and Google Tag Manager and 4 mores (measured from a US location before any click). No consent tool was detected. Visitors from the EU, UK and several US states must be asked first.
18 cookies set on arrival
18Opening the homepage sets 18 cookies (measured from a US location before any click).
No consent tool detected
No known cookie consent tool loads with the page. Some sites build their own banner, and some only show one to visitors from the EU.
107 other companies contacted
Loading the homepage contacts 107 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.
Security, domain, email and software versions
The security, domain and email checks, software and plugin versions, and any app with a known security problem are visible only to people at thesaurus.com, because details like these could help someone attack a site. Every review keeps them private, whatever they found.
Go beyond the website
What your $25 Growth Playbook adds
This review found 40 issues on thesaurus.com, including 21 speed issues, 2 SEO issues and 4 conversion gaps. That is the website alone. The full Growth Playbook pairs these findings with what your customers say in public reviews and communities and what your closest competitors do better, then turns everything into at least 20 prioritised ideas, each with the evidence behind it, a step-by-step playbook, a metric and an owner.
- 28 research agents read your site, reviews, competitors, communities and public filings
- Customer review mining (G2, Capterra, Trustpilot and more) and voice-of-pain analysis in your buyers’ own words
- Competitor intelligence with battlecards for your closest rivals
- Ideal customer profile, buyer segments and buying-stage funnel
- Ranked channels, outreach sequences and content angles
- Live Reddit threads where buyers ask for what you sell, with draft replies
- Earned media and PR openings
- At least 20 ideas with evidence, a step-by-step playbook, metric, owner, effort and impact, grouped into this week, this quarter, big bets and wildcards, plus a 30/60/90-day roadmap
- PDF, Markdown, CSV, Notion and Linear exports, and a shareable page your team can track progress on
- Refresh the playbook later to see what changed
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