SEO must pay attention to 49 factors

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internal factors

1, the URL appears in the keyword

2, the Web page title in the occurrence of keywords

3, the general content of the keyword

4, in the first paragraph of the page appears the keyword

5, in the last paragraph of the page appears the keyword

6, Heading tags such as h1,h2 in the occurrence of keywords

7, site links appear in the key words

8, to guide the relevant content of the export link

9, the export link appears the keyword

10, the image file name appears in the keyword

11, the ALT tag appears in the keyword

12, comment in the keyword

13, Reasonable frequency update content

14, the content of the search engine display location

15, the website structure circulation PR, but not distribute PR

16, the key words for appropriate modification (bold, italic, etc.)

external factors

1, a large number of import links

2, from high PR worthy of the Web page to get import links

3, from the relevant content site to get the import link

4, the import link points to the page has specific content

5, Anchor words have keywords

6, anchor text around the relevant words

7, anchor text exists in the article or sentence

8, the length of the import link, the general Import link exists for a period of 3-6 months

9, one-way link value is higher than the exchange link

10, the Import Link page's export link is less than 100, the outflow link is less the better

11, links from different IP

12, reasonable import link growth frequency

Things you need to avoid

1, keyword accumulation

2, all the anchor text is the same

3, the use of CSS or background color hidden content, this is the heinous great evil

4. Use JavaScript to jump

5, the same IP under the Web page directly to a large number of exchange links

6, bridge page and cloaking, induce the crawler of search engine, this is the heinous big evil

7, adult content, illegal drugs, gambling-related content

8. Repeat content

9, Link to cheat website

10, the site most of the pages have the same page title

11, add to link Farm or link Exchange class website

12, the use of the penalty domain name

13, the site is based on the IP penalty

Try to avoid problems

1, there are dynamic variables in the address

2, single picture and Flash website

3, the use of JavaScript to create a Web site navigation bar or directory

4, use the picture to do the website navigation without alt label

5, there are too many code between 〈head〉〈/head〉

6, there are too many topics unrelated to the website content

7, import links in the purchase of the majority of links

8, and cheating sites on the same server