synonyms.com
Synonyms.com
Last scanned Jul 26, 2026, 1:19 PM
Overall score
Great
Summary
Free online thesaurus with synonym and antonym definitions for many languages, including visual diagrams, audio pronunciations, translations, etymologies, usage examples and more ... This website uses PHP behind Fastly CDN. SEO is fair (65/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
Free online thesaurus with synonym and antonym definitions for many languages, including visual diagrams, audio pronunciations, translations, etymologies, usage examples and more ...
Top issues to fix
11 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
2 cookies without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
+5 more issues — details in the sections below.
SEO
6 issue(s) found
Performance
701 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Free online thesaurus with synonym and antonym definitions for many languages, including visual diagrams, audio pronunciations, translations, etymologies, usage examples and more ...
Meta tags
- Title
- Synonyms.com
- Description
- Free online thesaurus with synonym and antonym definitions for many languages, including visual diagrams, audio pronunciations, translations, etymologies, usage examples and more ...
- Canonical
- Language
- en-US
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1, maximum-scale=5
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Fastly
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.2
- Issuer
- Amazon
- Subject
- www.lyrics.com
- Valid from
- Jun 20, 2026
- Valid to
- Jan 3, 2027
- Days until expiry
- 159
- SAN domains
- www.lyrics.com, www.literature.com, lyrics.net, www.anagrams.net, www.calculators.net, www.quotes.net, www.cite.me, cite.me, www.lyrics.net, www.symbols.net, www.stands4.com, www.kamus.net, french.definitions.net, www.biographies.net, www.selectad.com, math.stands4.com, www.references.net, www.poetry.com, static.stands4.com, www.abbreviations.com, japanese.definitions.net, spanish.definitions.net, www.phrases.com, lyrics.com, www.abbr.com, www.symbols.com, www.rhymes.com, www.synonyms.com, chinese.definitions.net, www.uszip.com, convert.net, www.synonyms.net, www.definitions.net, www.rhymes.net, www.convert.net, poetry.com, hebrew.definitions.net, www.poetry.net, www.grammar.com, www.phrases.net, agave.definitions.net, german.definitions.net, www.scripts.com, portuguese.definitions.net
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 2 cookie(s) observed
Content & assets
Headings
H1 1 · H2 4 · H3 10
Links
177 internal · 32 external · 20 broken
Images
80 total · 4 missing alt
Scripts / Styles
18 scripts · 7 stylesheets
JS / CSS size
1.2 KB · 52.2 KB
Page size
171 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- Missing canonical link
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://synonyms.com
- Final URL
- https://www.synonyms.com/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 698 ms
- HTML size
- 171 KB
- Redirect chain
- https://synonyms.com → https://www.synonyms.com/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does synonyms.com use?
- synonyms.com is built with PHP, jQuery, Google Analytics, Google Ads, Apache.
- Is synonyms.com secure (HTTPS)?
- Yes. synonyms.com uses TLS 1.2 with a certificate issued by Amazon, valid until Jan 3, 2027.
- Who hosts synonyms.com?
- Hosting provider information for synonyms.com is not available yet.
- What is synonyms.com's SEO score?
- synonyms.com scored 65/100 for SEO in the latest analysis (fair).
- What is synonyms.com's overall website score?
- synonyms.com has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card