baseball-reference.com website review

2 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.3 s.

8 third-party services load with your homepage (Google Tag Manager, osano.com and ssref.net and others), adding 1.4 MB and 1.2 s of main-thread time.

Your mobile performance score is 58 (desktop: 67). Pages that score under 90 lose visitors before the first paint.

Google Tag Manager costs a phone 575 ms of main-thread work and 773 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.

About 410 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 150 ms faster on a phone.

osano.com costs a phone 273 ms of main-thread work and 172 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.

ssref.net costs a phone 256 ms of main-thread work and 288 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.

9 long tasks block the main thread while loading, the longest for 267 ms. During a long task the page ignores taps.

A phone's processor spends 2.5 s on main-thread work while loading, 1.5 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

The page has 2,061 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

2 images could be 184 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

Polyfills for old browsers add 20 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 150 ms faster on a phone.

7 files are served with short cache lifetimes, so returning visitors download them again (116 KiB).

About 40 KiB of CSS is downloaded but never applied on this page.

Critical files load one after another instead of in parallel (3 chains). Preconnecting to key origins and preloading the hero image shortens the chain.

Scripts make the browser recalculate the layout repeatedly while the page loads, which wastes processor time on phones.

The page becomes fully interactive after 23.4 s. Good is under 3.8 s.

Scripts block taps and scrolling for 919 ms in total while the page loads. Good is under 200 ms.

The first text or image appears after 3.6 s on a phone. Good is under 1.8 s.

Your largest element takes 4.1 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “Trending Player Pages José Ramírez, Gavin Williams, Giancar…”.

17 images have no width and height attributes, so the layout jumps as each one loads.

Visually, the page fills in at 3.7 s (Speed Index). Good is under 3.4 s.

Over the last 25 four-week periods to 2026-10-03, real Chrome visitors' tap response (inp) went from 163 ms to 163 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-10-03, real Chrome visitors' largest content (lcp) went from 1.7 s to 1.6 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 3.8 MB in 65 requests on a phone: other files 2.2 MB (18), scripts 1.1 MB (14) and images 364 KiB (28). Under 2 MB keeps phones on slow connections fast.

By the Sustainable Web Design model, a visit to your homepage emits about 1.07 g of CO₂e: 127.8 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

35 text elements don't have enough contrast against the background to read easily, especially outdoors on a phone.

18 tap targets are too small or too close together to hit reliably with a finger.

7 dropdowns have no label.

1 image has no alt text, which hurts accessibility and image search.

2 elements have a tabindex above 0, which scrambles the keyboard order.

Users should be able to zoom and scale the text up to 500%: 1 element on the page fails this check, rated minor by axe-core.

Tables do not use <caption> instead of cells with the [colspan] attribute to indicate a caption. (2 elements).

No XML sitemap at https://www.baseball-reference.com/sitemap.xml, so Google discovers your pages only by following links.

1 link has no real href, so search engines can't follow it.

1 link use generic text like “click here” or “learn more”, which tells Google nothing about the page behind it.

The homepage links to 347 pages on baseball-reference.com and 120 external pages.

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.

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.

robots.txt blocks GPTBot, 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.

Your homepage links to 1 page by a URL that isn't its canonical one, for example /leagues, whose canonical is /leagues/index.shtml. Linking straight to the canonical URL saves crawlers a detour and keeps ranking signals on one address.

/leagues has no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 15 pages linked from your homepage (of 184 found) and read each the way a search engine does.

34 of 42 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

1 error was logged to the browser console while the page loaded, for example “Failed to load resource: the server responded with a status of 429 ()”.

1 image is displayed at the wrong aspect ratio, so it looks stretched or squashed.

No Content-Security-Policy header, the main browser-side defence against injected scripts.

Neither X-Frame-Options nor a CSP frame-ancestors policy is set, so any site can embed yours in a frame.

X-Content-Type-Options: nosniff is missing, so browsers may guess file types.

No Referrer-Policy header, so full URLs can leak to the sites you link to.

No Permissions-Policy header to switch off camera, microphone and location for embedded content.

There is no /.well-known/security.txt telling researchers how to report a security problem to you.

baseball-reference.com's DNS answers are not signed. DNSSEC stops attackers forging them to send visitors or email elsewhere; most registrars switch it on in a click, though most sites still run without it.

On a phone, there is no call to action on the first screen: visitors have to scroll to find out what to do next.

No testimonials, customer logos, ratings or customer counts on the homepage: nothing tells a new visitor that others already trust you.

No guarantee or risk reducer (money-back, free trial, no credit card) is mentioned, which is often what tips a hesitant visitor.

The homepage carries about 595 words of visible text.

We found no DKIM key on the selectors the big email providers use. If you send through one of them, turning on DKIM signing improves delivery.

Email authentication: SPF record 25 points, plus 15 when it ends in -all (10 for ~all); DMARC record 25, plus 25 for a reject policy (15 for quarantine); a DKIM key on a common selector 10.

Opening the homepage sets 1 cookie (measured from a US location before any click).

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.

Loading the homepage contacts 1 host run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.